GOSSEN METRAWATT SU1604 Summation Transformer Instruction Manual

SU1604 Summation Transformer
Instruction Manual ENERGYCONTROL SU1604
Summator

SU1604 Summation Transformer

Highlights

• New modular concept
• Software is downward compatible to U1600/1/2/3 summators
• Energy Control Language (ECL) for programming analyses, monitoring and optimization

U1604 basic module:

• 64 processing channels for calculating energy, power and costs. Physical inputs (up to 64) or LON meters can be allocated as desired.
• Increased processing power by a factor of 10 to 15 as compared with U1601/2/3 summators
• LON interface for 64 LON devices
• One RS 232 interface (max. 921 kBaud)
• One RS 485 interface (max. 921 kBaud, half-duplex)
• Two ECS LAN interfaces (max. 375 kBaud)
• Ethernet interface (100 MBit/s) with ECL access via TCP/IP

Further optional components:

• U1614 power pack module with status relay
• U1624 SO input module with twelve S0-compatible meter inputs (up to 6 modules, max. 64 S0 inputs)

Scope of delivery, SU1604
1 U1604 basic module
1 Split toroidal core
2 ME 22.5 T-bus mounting rail connector
1 Condensed operating instructions
Scope of delivery, SU1614
1 U1614 power pack module
2 ME 17.5 T-bus mounting rail connector
1 Condensed operating instructions
Scope of delivery, SU1624
1 U1624 pulse recording module
1 ME 22.5 T-bus mounting rail connector
1 Condensed operating instructions

Safety Instructions

Observe this documentation, in particular all included safety information, in order to protect yourself and others from injury, and to prevent damage to the instrument.

• Carefully and completely read and adhere to these operating instructions, as well as the instrument’s condensed operating instructions. The respective documents can be found at http://www.gossenmetrawatt.com.
• Retain these documents for future reference.
• Observe the five safety rules in accordance with DIN VDE 0105-100:2015-10, VDE 0105-100:2015-10, Operation of electrical installations – Part 100: General requirements (1. Shut down entirely. 2. Secure against restart. 3. Assure absence of voltage at all poles. 4. Ground and short circuit. 5. Cover neighboring live components, or make them inaccessible.).
• Observe and comply with all safety regulations which are applicable for your work environment.
• Wear suitable and appropriate personal protective equipment (PPE) whenever working with the instrument.
• Use the instrument in undamaged condition only. Inspect the instrument before use. Pay particular attention to damage. Damaged components must be replaced immediately.
• If the instrument or its accessories don’t function flawlessly, permanently remove the instrument/accessories from operation and secure them against inadvertent use.
• Do not use the instrument and its accessories after long periods of storage under unfavorable conditions (e.g. humidity, dust or extreme temperature).
• Only use the instrument and its accessories within the limits of the specified technical data and conditions (ambient conditions, IP protection code, measuring category etc.).
• A suitable surge protector must be used in order to ensure that the installation site meets the requirements specified for overvoltage category II.
• The terminals of the U1614 power pack module may only be disconnected or connected in the current/voltage-free state!
• During operation when auxiliary power is active, the U1614 power pack module may not be mounted to or removed from the TBUS!
• During operation when auxiliary power is active, neither the U1614 basic module nor any other S0 modules may be mounted to or removed from the TBUS.
• Opening the housing of the U1614 power pack module during operation is impermissible! If replacement of the fuse should become necessary, for which the housing must be opened, all terminals must first be disconnected!
• The TBUS may only be used to connect ECS components – any combination with non-system devices with similar backplane connection is impermissible.

Applications

Please read this important information!
2.1 Intended Use / Use for Intended Purpose
The Energy Control System (ECS) is used to ensure transparent cost center accounting. All electrical and non-electrical energy media can be logged, optimized and billed to the respective cost centers.
As a central device within the Energy Control System (ECS), the U1604 summator makes it possible to log and bill analog and digital quantities.
These operating instructions describe ECS operating software as of V3.00.
Current operating instructions for the latest firmware update are available for download at www.gossenmetrawatt.com.
LON® is a registered trade mark of the Echelon Corporation.
2.2 Use for Other than Intended Purpose
Using the instrument for any purposes other than those described in the condensed operating instructions or these instrument operating instructions is contrary to use for intended purpose.
2.3 Liability and Guarantee
Gossen Metrawatt GmbH assumes no liability for property damage, personal injury or consequential damage resulting from improper or incorrect use of the product, in particular due to failure to observe the product documentation. Furthermore, all guarantee claims are rendered null and void in such cases. Nor does Gossen Metrawatt GmbH assume any liability for data loss.
2.4 Opening the Instrument / Repairs
The instrument may only be opened by authorized, trained personnel in order to ensure flawless, safe operation and to assure that the guarantee isn’t rendered null and void.
Even original replacement parts may only be installed by authorized, trained personnel.
Unauthorized modification of the instrument is prohibited.
If it can be ascertained that the instrument has been opened by unauthorized personnel, no guarantee claims can be honored by the manufacturer with regard to personal safety, measuring accuracy, compliance with applicable safety measures or any consequential damages.

Introduction

The new modular concept of the U1604 permits space-saving setup of an ECS Energy Control System in accordance with actual requirements.
Thanks to strict software compatibility with the earlier U1601/2/3 summators and downward compatibility to the U1600 summator, previously used systems can be easily replaced or expanded.

An instrument can be set up using the following modules:

• U1604 basic module with the following interfaces:
• 1 ea. RS 232 (COM-1), 1 ea. RS 485 (COM-2), ECS LAN left + right, LON, 2 ea. S0 relay output
• U1614 power pack module with status relay for supplying power to all components via the TBUS and an additional 24 V DC output (max. 5 W) – overall output power amounts to 20 W
• U1624 S0IN12 input module with 12 S0-compatible inputs (up to 6 modules, max. 64 S0 inputs)

Connector Terminals
All signals are fed to the instrument via screw terminals which can be unplugged (3, 4 or 5-pole). This assures trouble-free replacement in the event that servicing is required.

TBUS
The individual components are connected to each other via the so-called TBUS. The TBUS is laid out as a 5 conductor system and distributes 24 V DC supply power and signals from the TBUS communications interface (RS-485) to all components. The fifth conductor is used to indicate device status. One or two corresponding TBUS adapters are included with each U1604 component. These TBUS adapters (width: 17.5 or 22.5 mm) are snapped into the DIN top-hat rail  in the fully assembled state before mounting the devices. Please note: The U1614 power pack module with an overall width of 35 mm requires two 17.5 mm TBUS adapters, and all other devices require one or two of the 22.5 mm TBUS adapters.
3.1 Summator Comparison
The following table provides an overview of the hardware features included with the various ECS summators:

—

| 24

—

Analog inputs (20 mA, 10 V, S0)| 0| 12 / 0 / 6| —
Analog outputs| —| 2 / 0 / 2| —
Status relay (250 V AC, 3-pole)| ✔
To U1614| ✔| ✔
Relay (250 V AC, 3-pole)| —| 2 / 0 / 2| 4
S0 relay (semiconductor relay)| 2| 4 / 0 / 4| —
RAM Type| 4 MB MRAM 4| 1 MB SRAM| 128 kB / 512 kB 5 SRAM
Flash memory Type| —| 2 MB Flash| 512kB EPROM
RTC real-time clock (with backup battery) 6 Accuracy| 5 ±5 ppm (0 … +10 ppm)| ±20 ppm| ±10 ppm

1. COM-2 only available for U1601 with splitter cable
2. COM-2 for U1600 with splitter cable only and only usable for DCF radio controlled clock module or character output (printer)
3. Analog inputs can be used as S0 inputs (U1601 + U1603)
4. As opposed to SRAM, MRAM does not required a backup battery for data retention
5. U1600 without/with memory expansion
6. Accuracy of → 10 ppm → RTC gains (+) or loses (-) no more than roughly 0.8 s per day
   The following table provides an overview of the software features included with the various ECS summators:Software Feature| U1604| U1601/2/3| U1600
   ---|---|---|---
   ECS operating system| ECS V3.xx| ECS V2.xx| ECS V1.xx
   Number of energy channels| 64 (1 … 64)| 64 (1 … 64)| 32 (1 … 32)
   Background programs P programs

Q programs

A variable (double) B variant (double)

| 32 (H 0…31)

32 (P 0…31)

32 (Q 0…31)

64 (A 0…63)

64 (B 0…63)

| 32 (H 0…31)

32 (P 0…31)

32 (Q 0…31)

64 (A 0…63)

64 (B 0…63)

| 32 (H 0…31)

32 (P 0…31)

—

32 (A 0…31)

—

EINT measurement data list Recording duration, 32 channels Recording duration, 64 channels| 768 KB
120.5 days
62.1 days| 512 KB
80.3 days
41.4 days| 64 KB / 448 KB 7
10.0 / 70.3 days
5.2 / 36.2 days
UDM – user definable menus 8| ✔| —| —
7. U1600 without/with memory expansion 8. UDM – user definable menus: for the implementation of extensive user-specific menus and applications (as of August 2017)

Device Description

4.1 U1604 Device Overview

4.2 Channels/Calculations
64 software channels are available. In the basic configuration, the type of input for these channels can be specified via the CMODE channel parameters (0 → 4).

Cyclical Generation of all Channel Registers
Due to the fact that each channel has numerous energy data registers (33 registers without maximum values: Etot, EtotT1, EtotT2, Pmom, 10+1 times Eday, 12+1 times Emon, 4+1 times Eyear), only the most important summations are conducted continuously, and the less important ones in accordance with a rotating schedule. For example, Etot is ascertained continuously but Emon-12 only infrequently (roughly every 30 …………90 seconds). Power values other than Pmom are always calculated from energy values and thus don’t have to be totaled up.

Channel Names
A name can be assigned to each channel which can have a length of up to 8 characters. The channel can be better identified for data processing and display purposes with the help of this name. The name also makes it possible to access a  specific channel per program system-wide.

From summator A: a channel with the name “Motor5” is searched for system-wide and this channel’s total energy is displayed (see also ECL command: FINDER).
Virtual Channels

• Each unused channel is available as a virtual channel, in order to generate any desired sums or differences from physical inputs or other virtual channels. It doesn’t matter which summators the channels are assigned to within the ECS LAN system!
• Unused physical channels can also be used as virtual channels, in which case even the maximum value registers of the corresponding physical channel are available.
• The synchronizing-interval measurement data list can record data from virtual channels.

Differential Coupling (ECL commands dVSUM and dVIRT)
As of the moment of definition, incoming energy quanta (~ meter pulses) from the source channels are continuously summed up, and the summed up energy quanta are fed to the virtual channel as if they had actually just been measured.  The virtual channel is thus decoupled from the source channels and data can be changed as desired. Application: logical coupling of the input signals (as if the corresponding input signals were connected to a single meter channel).
Example 1
Channel 26 at summator D: generates a cost center consisting of channels 1 → 5 + 8 of summator B: weighted at 0.7 and channel 4 of summator C: weighted at 0.3
H 1 = ‘B:DVSUM 1 .. 5+8 0.7, C:VSUM 4 0.3, D:VI
Example 2
Channel 10 is equal to the balance of channels 1 → 8 and the total sum of channel 9 (sum 1 → 8 minus channel 9)
H2=’dVSUM 1..8, dVSUM 9 -1, dVIRT 10=’
Numeric Range
In order to achieve greatest possible accuracy, all internal calculation operations are conducted with 64-bit floating point numbers. As a result, 15 (!) significant decimal places are available.
Switching the Channel Display On/Off
The on/off function only determines whether or not a channel is present at the display when scrolling through channel data or in a read-out with “*” (ECL command: ONOFF).
Otherwise, the channel’s function is not influenced in any way.
Start/Stop Channel
The acceptance of an input’s meter pulses is controlled with the start/stop function (ECL command: STARTSTOP).

• A channel generated with “differential coupling” can be influenced by means of an analog signal with the start/stop function.
• Due to the fact that a channel’s binary input status is not influenced, this function can be used, for example, to avoid undesired counting of binary information.

Energy Metering
Meter pulses filtered in this way are integrated per channel in a temporary meter. Roughly once every 1 to 2 seconds, the meter values are converted to the corresponding energy values and the total energy registers are counted in as well.  Pulses are converted to energy values in accordance with the following formula:
Energy Calculation

Electrical Power Billing
Instantaneous power is determined on the basis of the intervals between the incoming pulses. All other power values are calculated from the corresponding energy value in consideration of the respective time interval.
By default, the calculation of power is based on an energy unit of measure per hour (kWh). In the case of other frames of reference (e.g. liters per minute,) the P factor must be correspondingly adjusted (ECL command: PFACTOR). The standard value is 3600, and for the liters per minute example it would be 60.
Formula for calculating power from energy E and timespan dt:
P = E * Factor / dt
Only sensors which are connected via the LON network deliver already calculated power and energy values to the summators.
4.3 Inputs
Binary Meter Inputs
Twelve S0 inputs are available per S0 module (U1624).

U1624
S0 IN 7| SO IN 8
(a) I (b)| (a) I (b)
SO IN 9| SO IN 10
(a) I (b)| (a) I (b)
SO IN 11| SO IN12
(a) I (b)| (a) I (b)

SO IN 1 … 12
– Six 4-pole connector terminals for two S0 inputs each.
– S0 input characteristics:
Input voltage = max. 30 V, input resistance = 5.1 kΩ, bipolar, electrically isolated
– Due to the fact that the utilized optocouplers are bipolar, connection polarity is irrelevant.

Debounce Time and Counting Edge
Debounce time and the counting edge (trigger edge) can be separately configured for each of the 12 inputs. Sampling time over all of the up to 12 channels amounts to 1 ms.

• Debounce time is adjustable from 0 ms to 20 s in 1 ms steps, ECL command: PULSE
•  “+” (1) counting edge: Counting when change occurs from level 0 to level 1, ECL command: EDGE
• “-” (0) counting edge: Counting when change occurs from level 1 to level 0
  If an input is used as a binary input, the selected debounce time applies to this operating mode as well. For example, if a debounce time of 1 s has been selected, only signals which remain stable at the “1” or “0” level for at least 1  second are further processed.
  The input status display at the control panel shows only the debounced signal levels.

4.4 S0 Outputs S1 … S2
The two freely programmable S0 outputs make it possible to transmit messages in the event that certain conditions occur. Switchable voltage is limited to 50 V in this respect. Furthermore, the outputs can also be used as floating pulse  outputs for remote transmission of meter values with the help of ECL background programs (see ECL command  S0REL 1 … 2).
4.5 Self-Test
As long as the electronics are functional and no system errors have been detected, the status LED and the status relay are on. If an error has occurred at the device electronics, the relay drops out and the LED goes out. A horn, which can  be controlled with the status relay’s NC contact, is then able to indicate the error status. The current relay status is displayed in the status window (section 6.8 on page 29).
The function test can be expanded by means of appropriate programming (ECL com-mand: STATCHECK, further information in the online help via ? STATCHECK). For example, the output can already be deactivated (error status) when available 24 V supply power drops to below 16 V, or when the status of the lithium battery no longer assures reliable data retention.
4.6 RS 232/485 Port
Communication with the host PC, radio controlled clock, terminal, COM server, modem or printer is made possible by the RS 232 serial port.
Access to All Measurement Data
A PC connected to the RS 232 port has full access to all of the system’s stored measured values. ECSwin parameters configuration software running at a PC manages all ECS data and permits tabular data evaluation.
Connection Configuration
The RS 232 port is laid out with the DTE (data terminal equipment) configuration and the signals are available at a 9-pole D-sub plug connector. This DTE configuration corresponds to the same one that is commonly used for PCs and terminals. Refer to section 8 on page 55 concerning connector cable wiring.
4.7 Ethernet Port
In addition to the COM-1 and COM-2 ports, ECL inputs via TCP/IP are available as well (see section 7.10 on page 49).
4.8 ECS LAN
For applications which necessitate the use of more than 64 channels, several summators can be connected to each other via a multi-master-compatible RS 485 fieldbus (ECS LAN). Linking can be conducted by means of a 2-wire cable  with bus or line structure.
Maximum length per segment is 1200 m. Distances of several kilometers between 2 summators can be spanned with fiber-optic transmission lines based on 4-wire technology.
Up to 255 summators can be connected to the ECS LAN. And thus a maximum distance of roughly 300 km can be spanned without an additional booster.
Multi-Master System Architecture
The essential advantage of multi-master architecture results from the fact that each of the connected bus users has full access to the overall system’s data and functions. This means that it’s not necessary to select a single summator as the  bus master.

General Information Concerning ECS LAN

• The connection technology for the individual LAN segments is freely selectable and can be mixed as desired.
• Transmission speed is dictated by the maximum cable length in accordance with RS 485. The ECS LAN normally runs at 62.5 kBaud, and the maximum cable length is thus 1.2 km (see also section 7.6 on page 43).
• The transmission cable must be terminated at both ends (but nowhere else) with terminating resistors. The terminating resistors are integrated and can be activated and deac-tivated via the control panel. Correct functioning of the 2-wire connection can only be assured with integrated terminating resistors. No external resistors may be connected!
• Loop resistance of the transmission cable with 2-wire technology may not exceed 100 Ω.
• Up to 16 summators can be connected to a bus segment. If the terminating resistors are correctly connected (see above), branch lines have been minimized and the loop resistance of the transmission cable is less than 100 Ω, up to 32  summators can be operated at a single segment.
• User statistics can be retrieved via the control panel (device status).

Bus Left, Bus Right
Each summator provides 2 complete ECS LAN ports. They’re designated LAN L and LAN R. Each of these ports can be operated with either 2-wire or 4-wire transmission technology (RS 485).
2-Wire
A bus system within which several summators are connected to a common bus line must be set up with 2-wire technology.
4-Wire
4-wire technology is used where especially long transmission paths have to be spanned or where boosters are required, in which case only line-to-line connection is possible.
Connection Lengths (LAN bus)
If several summators (up to 16) are arranged in relatively close proximity to each other (total bus length of max. 100 m), bus connection with a twisted pair cable is recommended. Line-to-line connection with a twisted four-wire cable should not be set up until the distance between 2 summators is greater than 400 m (max. 1200 m).

User Directory
Directory of ECS LAN Users
Each summator automatically prepares an internal directory (ECL command: DIR) of all interconnected ECS LAN users (insofar as unequivocal IDs have been assigned throughout the entire system). Each summator indicates its presence system-wide every 3 seconds with a so-called broadcast message, so that all summators which receive this message can correspondingly update their internal directories. If the message is not transmitted for a period of more than 20 seconds, the respective summator is removed from the internal directories.

Unequivocal Identification
An unequivocal summator ID must be assigned to each summator within the ECS LAN system. 255 different, freely selectable IDs are possible.
An ID has the following format: A, A1 .. A9, B, B1 … B9, .. , Z, Z1 .. Z4
System-Wide Access to Measurement Data
Example: You would like to retrieve total energy for channel 1 at summator D1 from summator A : < A> D1:Etot 1

4.9 LAN LED (LANL/LANR)
Two LEDs, one for bus left and the other for bus right, indicate error-free operation of the ECS LAN:

• If no ECS LAN users are connected, the LEDs don’t light up.
• If one or more users are connected to the respective bus segment, the LED lights up.
• If two or more users have the same ID, the corresponding LAN LEDs blink at the users with the same ID. Exception: If the summators with the same ID are connected to the same LAN segment, no unequivocal error message is  generated. For this reason, always compare the number of summators with the total shown in the user statistics when installing devices (control panel: device status).
• If the internal terminating resistor is not activated during bus operation, the affected LAN LED blinks.

4.10 LON Connection
LON is an intelligent bus concept which makes it possible for controllers, sensors and actuators to “talk” to each other. Quick and inexpensive wiring is achieved by means of intelligent decentralization. All of the nodes (users) are equipped with a neuron chip and communicate with each other via the LON Talk protocol. Data is transmitted via a standardized, floating, twisted pair cable which can be wired in bus, ring or star topology as desired (free topology!). The electrically isolating FTT10 transceiver used to this end is reverse polarity protected and transmits data at 78 kbps. Up to 63 nodes can thus be additionally connected to a U1604 summator via the integrated LON network. Energy values from the LON meters can be freely assigned to channels K1 to K64 via differential coupling.
4.11 LON LED
LON LED off
All LON channels deactivated (Haupt Text, page 36)
Blinking LON LED Error in communication with LON users
LON LED on LON bus OK

Measurement Data

5.1 Overview of Available Measurement Data
The following measurement data are available for each meter input and each virtual channel:
Energy (cumulative as of a specified starting point)

Energy (cumulative for specified time periods)

Cumulative energy for the current and the last xx * intervals (measurement data list)
Cumulative energy for the current and the last 10 days
Cumulative energy for the current and the last 12 months
Cumulative energy for the current and the last 4 years

• Interval value depending upon memory depth
  Maximum Values from the Synchronizing Interval Measurement Data (with date and time)

The xx * highest values
Maximum energy for the current and the last 10 days
Maximum energy for the current and the last 12 months
Maximum energy for the current and the last 4 years
Costs (cumulative as of a specified starting point)

Power (mean values for specified time periods)

Instantaneous power between the last 2 meter pulses
Power for the current and the last xx * intervals (measurement data list)

Mean power value for the current and the last 10 days
Mean power value for the current and the last 12 months
Mean power value for the current and the last 4 years
Maximum values from the synchronizing-interval measurement data (with date and time)

The 10 highest values for all measuring intervals Maximum power value for the current and the last 10 days
Maximum power value for the current and the last 12 months
Maximum power value for the current and the last 4 years

Summary of Available Measurement Data per Channel

Energy Values| Features| Maximum Energy Values| Maximum Power Values| Costs
---|---|---|---|---
Etot| Pmom| | |
EtotT1| | | | CostT1
EtotT2| | | | CostT2
EtotT1T2| | | | CostT1T2
Eint| Pint| Emax| Pmax|
EDay| PDay| EmaxDay| PmaxDay|
EMon| PMon| EmaxMon| Paxon|
EYear| PYear| Emax Year| Pmax Year|

Relationship Between Recording Duration and Number of Channels
of the Synchronizing-Interval Measurement Data (measurement data list, format 0 → 3):

5.2 Synchronizing Interval Measurement Data List
The energy values measured during a specific interval can be saved to a measurement data list. This interval (duration: 10 s … 999 hrs., default: 15 minutes) is either derived from system time or the interval limit is determined by the edge  of the meter pulse (default: channel 11). Energy measured during the interval (EINT) is entered to the list along with date and time. The mean power value for the interval (PINT) is calculated from EINT and the duration of the corresponding interval.

Formatting the Measurement Data List

Attention!
The contents of the measurement data list are deleted during formatting.
The number of entries in the measurement data list depends on the number of channels. The measurement data list can thus be formatted according to the desired number of channels. Formatting is only possible via an interpreter. The  resolution of the data range is determined at the same time (ECL command: FORMAT).
Specifying the Number of Entries
The format command reserves space within system memory for the selected channels. In this way, the possible number of entries (records) is specified, but not the recording duration which depends entirely on interval time. Example:  Only channels 1 through 4, channel 17 and channels 21 through 23 will be recorded to the measurement data list.
< A>FORMAT = 1..4+17+21..23
If the format command is invoked without parameters, status information is read out to the measurement data list. In particular how many entries can be recorded in the measurement data list is shown here.
FORMAT = 1…4 + 17 + 21 …23
format
Format (0): 8 channels, 26,214 entries (= 273 days with an interval of 15 minutes)
Channels: 1;2;3;4;17;21;22;23
Reading Out the Measurement Data List
The data saved to the measurement data list can be read out together with date and time via the serial port by means of ECL command EINT. The following example shows the read-out of all measurement data from channels 1 through 5 in ASCII database format:
Eint/## 1..5 *
16.04.93;17:45:00;1;0.5;0.75;0.99;1.36
16.04.93;18:00:00;1.01;0.1;0.76;0.80;0.83
16.04.93;18:15:00;0.99;0.48;0.75;1.02;1.28
Retrieving a Specific Entry
The ECL command INDEX makes it possible to read out data as of a specific date. The following example (in plain text read-out) shows the value from the measurement data list for channel 1 on 16 April 1993 at 6:15 p.m.:
Index 16.04.93 18h15, Eint/ 1 .
16.04.93 18:15:00 : Eint-863 (01:Motor7) = 0.99 kWh
Memory Structure of the Measurement Data List
The measurement data list is a ring buffer of fixed size which is correspondingly formatted. It’s accessed by means of an index number. Index 0 always makes reference to the most up-to-date, current interval. Index 1 makes reference to the last interval and index 2 to the next to last etc. The ECL command INDEX converts a timestamp into the corresponding index number.
Ring Buffer
When memory capacity has been exhausted, the oldest entry (with the highest index number) is deleted in favor of the new entry. Index 1 is thus assigned to the interval which has just been concluded, and the index numbers of all previous entries are increased by 1.
Measurement Data List Value Range**
Limitation of Resolution due to Data Reduction
All of the summator’s data registers have an internal width of 8 bytes (64-bit floating point). However, this has to be converted to a data format with a width of 2 bytes for the data list (as of Eint-1), for which overall recording duration is  directly dependent on available memory capacity (which is associated with reduced accuracy). The fact that only energy values are saved (and not power values because these are calculated) results in the following limitation of the numeric range with standard “0” formatting:
Data range encoding: (0: standard. Resolution specified in [ ])
0 : 0…+/-0.8191[0.0001]…+/-81.91[0.01]…+/-8191[1]…+/-819100[100] 1 : 0…+/-8,191[0.001]…+/-81.91[0.01]…+/-819.1[0.1]…+/-8191[1] 2 : 0…+/-16383[1]……+/-163830[10] 3 : 0……+32767[1]………+327670[10] 4 : 0..+/-99999999 [8 decimal places, smallest place: 1E-6] If the number is > 99999999, the leading places are omitted.
1234567890 –> 34567890 Omission of the first 2 places
12345678.9 –> 12345679 8. Place is 5/4 rounded
1234567.8 –> 1234567.8 No limitation
12.345678 –> 12.345678 No limitation
12.3456789 –> 12.345679 8. Place is 5/4 rounded
1.23456789 –> 1.234568 Only 6 places after the decimal (see below)

• —USB Serial Port (COM1) 
• ——Properties of the USB Serial Port (COM1)
• ———Connection Settings  Advanced …
• ————Advanced Settings for COM1 
• —————Select COM1, COM2, COM3 …
  Please refer to the following web pages for more information on the drivers: http://www.ftdichip.com/Drivers/VCP.htm
  The easiest way to install the driver (32 and 64 bit) – if it’s not installed automatically – is to use the setup executable available at the following address: http://www.ftdichip.com/Drivers/CDM/CDM21228_Setup.zip

COM1 (RS 232 full-duplex) default settings:
Baud rate: 115,200 baud (9600, 19,200, 38,400, 57,600, 76,800, 115,200, 230,400, 460,800, 921,600)
Handshake: RTS/CTS (-, RTS/CTS, XON/XOFF)
Parity OFF (off, even)
Mode: ECL (OFF, ECL, DCF …)

Attention!
Changes to the setting may render the device unusable, insofar as the faulty settings cannot be corrected via another correctly functioning interface.

Recommendation for selection of the ideal baud rate for the RS 232 – COM-1 port:

• If the PC is equipped with an integrated RS 232 port, the drivers (hardware) are usually not capable of using baud rates of 230 kBaud use 115,200 baud.

• If the USB – RS 232 converter cable (with FTDI chip directly in the USB plug) is used, the fastest available baud rate of 921,600 baud can (usually) be used without any trouble.
  Recommendation for selection of the ideal baud rate for the RS 485 – COM-2 port:

• This RS 485 port works in the half-duplex mode – no handshake is possible for which reason this function is always deactivated. And thus under certain circumstances, the baud rate must be selected such that no buffer overflow can occur (usually no problem with ECL protocol).

• With an FTDI chip-based USB – RS 485 converter, the fastest available baud rate of 921,600 baud can be used without any trouble.
  Tip: The COM port for FTDI-based USB – RS 485 converters can be permanently assigned in the device manager, and management of two or more virtual COM ports can thus be optimized:

Device Manager

• —Connections (COM & LPT)
• —USB Serial Port (COM1)
• ——Properties of the USB Serial Port (COM1)
• ———Connection Settings Advanced …
• ————Advanced Settings for COM1
• —————Select COM1, COM2, COM3 …

7.10 Ethernet Port
In addition to the COM-1 and COM-2 ports, ECL inputs via TCP/IP are available as well.
After successfully opening one of the TCP-IP sockets from a PC, characters can be transmitted in both directions, as if connection had been established via a COM port (like a COM server).

Default IP Settings and Ports
IP address: 192.168.0.50
Netmask: 255.255.255.0
Gateway: 192.168.0.1
COM-4 port: 5004 (mode = ECL)
COM-5 port: 5005 (mode = ECL)

ECSWIN Settings
If ECSWIN is used, the “W&T-COM-Server” option must be selected.
This is the settings dialog box for COM-4 with the default settings:
Useful ECL Commands for IP Management
Set IP: IP2UL 192.168.0.50, SYSIP = .
Set netmask: IP2UL 255.255.255.0, SYSIPNM = .
Set gateway: IP2UL 192.168.0.1, SYSIPGW = .
Note: These settings correspond to the default settings after a master reset.

Query MAC: SYSMAC48
Query IP: SYSIP% %rpw
Query netmask: SYSIPNM% %rpw
Query gateway: SYSIPGW% %rpw
Tip: “%rp” prints a long number as IP address: Sysip-, ! %rp!

TCP/IP Settings in the Control Panel
All adjustable IP parameters can also be set with the control panel – all IP parameters and the status of COM-4 … can be checked in the status view (see graphic above).

7.11 Relays and S0 Relays (S0-OUT)
The U1604 makes two S0 semiconductor relays (relay/S0-OUT 1+2) available:

Comparison with U1601/3 (relays 1+2, S0 semiconductor relays 3 … 6):

The S0 relays are laid out as NO contacts (max. 50 V DC, 200 mA, bipolar). Assignment of the value 1 causes the S0 relay to close.
Assignment is made as follows: REL = {0, 1}
RELM = is used to set the relay’s operating mode:
0→always off
1→always on
2→changeable (default)
Relays 3 through 6 have been prepared – values can be assigned and settings can be selected, but they don’t have any effect.
S0 Pulse Output
Pulse sequences can be read out with the S0 relays which generate equivalent S0-compatible pulses in accordance with the change to the energy value of a given channel (1 … 64).
Associated commands:
S0PCH = (specifies the target relay and the source channel)
S0PDELTA = (indicates the energy quantum for which 1 pulse is generated)
S0PMS = (duration of one pulse in ms)

Mapping the Status of the U1604 to Relay 1 or Relay 2
When the U1604 basic module is used without the U1614 power pack module and external 24 V auxiliary power is fed directly via the TBUS, no status relay is available. In order to make a status output available for this configuration, the status of the U1604 can be mapped to relay 1 or 2. 

Supplying 24 V DC Auxiliary Power Directly via the TBUS
The status is mapped via a so-called feature.
Features are stored to non-volatile memory at the U1604 and are not deleted in the event of a simple or an extended master reset.
Activating status mapping to relay 1: STATRELMAP FEATURE = 1
Activating status mapping to relay 2: STATRELMAP FEATURE = 2
Deactivating status mapping (default): STATRELMAP FEATURE = 0
Querying all active features / all available features: FEATURES// list of all active features
FEATURES * // list of all possible features

Notes:

• Features are usually not part of the summator’s parameters configuration.
• The command is: FEATURE
• As soon as mapping is active, the status of the affected relay is controlled internally via
  RELMode (0:OFFSTATUS ERROR, 1:ONSTATUS OK).
  RELM assignments are possible but have no effect.
  The value of REL is not affected by mapping – it can be changed via assignment but without effect.
  – RELM of a mapped relay cannot be changed in the SUMMATOR setup menu – menu 4 – RELAY MODE – “[0] STATUS” or “[1] STATUS” is displayed.

Attention!
If 24 V DC auxiliary power is supplied externally, the U1614 power pack module may not be used!

7.12 Basic Software Configuration
Upon shipment from the factory or after a master reset, the device is configured as follows:

13 … 14: ANA 15 … 64: OFF
Channel name| | CNAME| Channel x
Long name| | LNAME| Long name, channel x
Energy unit| | EUNFT| kWh
Power unit| | PUNIT| kW
Visible| | ONOFF| ON
Start/stop function| | STARTSTOP| START
Channel fixed point| | CFIX| 2
C Factor| | CFACTOR| 1
Meter constant| | MCONST| 1
Voltage transformer transformation ratio| | URAT| 1
Current transformer transformation ratio| | RAT| 1
P factor| | PFACTOR| 3600
Pulse duration| | PULSE| 20 ms
Edge| | EDGE| 1 (+)
LON activity| | LONSTOP| 0
Neuron ID| | LONID| 0
LON terminating resistor| | SetLON| 50 K2 / 100 K2 / OFF
LON SUBNET/NODE| | LonSUBNODE| SOO1N126
(subnet =1, node =126)
LON TIMING CODE| | LonSTATI1Ming| 9 (384 ms)
LON POLL DELAY| | LonPOLLDELay| 0
LON sub-channel| | LONCHAN| 1
LON factor| | LONFACTOR| 1
LON offset| | LONOFFSET| 0
Designation| | Parameter| Value
---|---|---|---
C factor| | CFACTOR| 1
Ma factor| | ANAFACTOR| 1
Ma offset| | ANAOFFSET| 0
Ma sign| | ANASSEL| 0 (±)
Select ana unit| | ANAUSEL| 2
Ma unit| | AUNIT| kW
Ma mode| | ANAMODE| 3 (meter)
VO range| | ANAMODSEL| 3 (50)
Ma fixed point| | ANAFIX| 2
Resolution| | ANARESO| 2000
COM1 mode| ‘| SetCOM1| ECL
COM1 baud rate| | SetCOM1| 9600
COM1 parity| | SetCOM1| Off
COM1 handshake| ‘| SetCOM1| Xon/Xoff
COM2 mode| ‘| SetCOM2| ECL
COM2 baud rate| | SetCOM2| 9600
COM2 parity| *| SetCOM2| Off
COM2 handshake| ‘| SetCOM2| Xori/Xoff
ECS LAN 2/4-wire connection| | SetLanL, SetLanR| BL:2-wire, BR:2-wire
ECS LAN terminating resistor| ‘| SetLanL, SetLanR| BL:On, BR: On
ECS LAN baud rate| | SetLanL, SetLanR| BL: 62K5, BR: 62K5
Background program: Daylight savings / standard time| | H 31| 1SUW1,1F,TIME-,+,time..’
Formatting| | FORMAT| Channels 1 … 64 in format 0
Group name| | GROUP| ECS
Status relay coupling| | STATCHECK| 1 (coupled)

• These parameters are not changed when a master reset is executed.

Terminal Assignments

The SU1604 is equipped exclusively with plug-in connector terminals.
The following terminal types (color: gray with screw connector) are used and are manufactured by PHOENIX-CONTACT (PC):

• 3-pole, 5 mm grid (PC 1971947), used in U1614 power pack module
• 4-pole, 5 mm grid (PC 1878037), used in U1604 and U1624
• 5-pole, 3.5 mm grid (PC 1769087), used in U1604 (RS 232)
• 5-pole, 3.81 mm grid (for TBUS connection), right (PC 1719697) or left variant (PC 1719707)

8.1 U1614 Power Pack Module

24 V DC Output

+24V| 0V| 0V| Max. 5 W

24 V DC OUT
– Up to 5 W at 24 V DC can be taken from this 3-pole terminal.
Total output power of the U1614 power pack module is 20 W.
– +24 V and the two jumpered 0 V terminals are connected to internal 24 V DC supply power (TBUS +24 V terminal and GND = 0 V).
STATUS REL
– 3-pole terminal for the status relay, can be energized with 250 V AC, 5 A, relay contacts: AgNi 90/10
– In the case of STATUS OK, the relay is pulled out and COM is connected to NO. In the off state or in the case of STATUS ERROR, COM is connected to NC.
UA IN
– 3-pole terminal for connecting auxiliary power UA
– Reliable UA range:
90 … 264 V AC,
120 … 300 V DC / 40 VA

8.2 U1604 Basic Module

COM2 (RS 485)

• 4-pole connector terminal for the RS 485 port (half-duplex).
• A defined quiescent level is assured internally by resistors 1K/4K7/1K.
• 120 terminating resistor is connected between TR+ (A) and TR– (B) by connecting Term- to Term+.
  

COM1 (RS 232)

• 5-pole connector terminal (3.5 mm terminal grid) for the RS 232 port (full-duplex).
• A USB-COM adapter cable is available which can be directly connected to this terminal.

LAN L and LAN R

• 4-pole connector terminal for the LON network – only A and B are used (polarity is irrelevant).

• The LON matching resistor is relay controlled (50 Ω/ 100  Ω/off).
  S0 Out 1+2 (semiconductor relays)

• Current-carrying capacity: max. 50 V DC, 200 mA, bipolar

• Relay ON→(a) connected to (b) (typically 1 Ω, max. 10 Ω).

S0 IN 1 … 12

• Six 4-pole connector terminals for two S0 inputs each.

• S0 input characteristics:
  Input voltage = max. 30 V, input resistance = 5.1 k, bipolar, electrically isolated

• Due to the fact that the utilized optocouplers are bipolar, connection polarity is irrelevant.

8.4 TBUS Connection
The 5-pole TBUS is used to connected all SU1604 modules to each other. This connection is implemented by means of TBUS connectors which are included with each device and are snapped into the top-hat rail after plugging them together. The individual components are then latched onto the top-hat rail at the corresponding position. This procedure connects the devices to each other

• no wiring is required. In certain applications it may be necessary to:
• Use a special power pack instead of the U1614 power pack module .
• Connect the TBUS from one top-hat rail to another
• Operate two or more U1604 basic modules with one U1614 power pack module

Attention!
During operation when auxiliary power is active, neither the U1604 basic module nor any other S0 modules may be mounted to or removed from the TBUS.
In these cases connection to the TBUS is accomplished with special 5-pole terminals (3.81 mm grid), which differ for right (PS 1719697) and left (PC 1719707) connection.

+24V, GND
– 24 V DC power supply to all TBUS devices
TBUS+, TBUS–
RS 485 communication connection between U1604 and TBUS components
STATUS

• Control line for the status relay in the U1614 power pack module.
• Connected to 5 V by the U1604 basic module via pull-up resistor (STATUS OK) and to GND via N-FET in the case of STATUS ERROR. This makes it possible for all TBUS components to force the STATUS ERROR state.
• The following applies for the status relay in the U1614 power pack module:
  STATUS OK (relay picked up), if UTBUS-STATUS 2.7 V
  STATUS ERROR (relay dropped out), if UTBUS-STATUS < 0.8 V or open

Connecting the protective earth conductor:

• The DIN top-hat rail must be securely connected to PE!
• The individual TBUS components are automatically connected to earth potential on the top-hat rail via a contact in the housing.
• BUS GND does not have a low-impedance connection to PE, except for interference suppression with 1 nF/1 kV capacitors and protection against excessively high potential differences with a 275 V varistor in the U1614 power pack  module between GND and PE.

Distributing a system to two separate top-hat rails:

• Without the U1614 power pack module there’s no 3-pole status relay. Nevertheless, one of the U1604 basic module’s two S0-OUT semiconductor relays can be used as a status relay.
• See “Mapping the Status of the U1604 to Relay 1 or Relay 2” on page 52 in this regard.
• The nominal input voltage range of the TBUS connections for +24 V and GND (UATBUS) is 24 V – the connections are protected against polarity reversal.
  The permissible voltage range is: 9 V UATBUS 30 V.

Attention!
If 24 V DC auxiliary power is supplied externally, the U1614 power pack module may not be used!

Programming

General Information
ECL — Energy Control Language
The flexibility of the ECS is based on the programmability of the individual summators us­ing the ECL programming language (energy control language), which was specially de­veloped for the ECS. Refer to the operating instructions for the ECL interpreter and the commands list for further information concerning this high-level language which is similar to FORTH but, like BASIC, is easy to learn. Thanks to this programmability, the following additional system characteristics are made available:

Virtual Channels
Even complex formulas for the creation of virtual channels can be clearly and concisely formulated as background programs. There’s no predetermined schema which inhibits flexibility.

Programming the Relays
Relay switching can depend on numerous conditions. With ECL, any desired conditions can be formulated, even cross-summator conditions. The conditions are evaluated con­tinuously as a background program. Simple energy management, for example, can in­volve a special type of relay output programming.

Simple Energy Management
Example: If a consumer’s mean power exceeds a given value, the consumer is shut down by switching one of the 2 relays. Whether or not this shutdown is at all desirable can be ascertained by checking system time (e.g. only at night), by polling a binary input (e.g. only switch when logical one is applied to input 10) or by evaluating the power val­ues of other consumers.

Tariff Changeovers
Time comparison functions in background programs make it possible to respond to spe­cial requirements for tariff changeovers.

Flexible Adaptation to Database – Specific Transmission Formats
Continuously recurring queries of datasets can be saved as a normal P program. Entirely ASCII-oriented database formats can be compiled in a program of this sort. Data trans­mission is started in accordance with the desired format after invoking this program.

Background Programs HO … H31
32 background programs are available, namely HO … H31. Each program can take on up to 127 characters. The background programs are executed in the background, one after the other. Thanks to the operating system’s multitasking structure, the background pro­grams have absolutely no effect on the normal operating sequence.

Programs PO … P31 and 00 … 031
64 programs, namely PO … P31 and 00 … 031, receive continuously recurring com­mand inputs which can then be processed by simply invoking the corresponding pro­gram. Nesting of programs is possible, and a normal P program can be executed as a subprogram from a background program.

Program Names
Names can be assigned to P programs. P programs can be addressed system- wide with their names.

Parameters Configuration and Data Visualization at a PC
The easiest way to communicate with a summator from a PC is via terminal emulation, e.g. with the help of HyperTen–ninal. However, adequate knowledge of the commands is absolutely essential.
ECSwin provides a much more convenient method:

Program features:
ECSwin is used primarily for configuring parameters at U1600, U1601, U1602, U1603, U1604 and U1615 summators in an ECS LAN. Beyond this, reading in and visualizing energy consumption data in the form of measured value tables and graphics (online dis­plays) is supported as well. The 32-bit program (as of V3.4.x) runs under MS Windows Vista and 7 (32 and 64-bit), as well as 8 and 10. Connection to the U16xx is possible via TCP/IP or RS 232.

The following functions are provided by the software:

• A dialog box for logging on and configuring access authority
• A dialog box for setting time in the ECS LAN
• A dialog box for configuring summator parameters
• A dialog box for configuring channel parameters
• A dialog box for setting meter readings
• A dialog box for configuring relay parameters
• Transfer user created commands to the summator
• A dialog box for generating virtual channels
• Control panel display (including device display, keys and LEDs) for U1600, U1601 and U1604
• Ascertainment and graphic representation of ECS LAN network topology
• Querying and display (as table or characteristic curve) of intervallic, daily, monthly and annual energy and power data which have been stored to memory at the summator.
• Querying and graphic display of currently measured values in data logger format
• Data transmission via modem (maintenance of a dial-up list)
• Terminal emulation

9.3 ECL Extensions and Notes on Compatibility
This section includes extensions to the ECL interpreter language as well as notes concerning compatibility.
Addressing Up to 255 Devices in the ECS LAN System
ECL permits direct addressing of up to 255 devices in the ECS LAN system by placing the device ID (A:,A1:…A9:,B:,B1…B9:,…,Z:,Z1:…Z4:) in front of the command. Example for querying the firmware version of devices A1: and C7:
A1 : VER, C7 : VER
The so-called “local” device, which is connected to the PC directly via the RS 232 or TCP/IP port, can be directly addressed with special ID AA:, without having to know the exact ID.
The default context is normally set to the local device, so that use of special ID AA: is only necessary in exceptional cases. This is usually made apparent in the terminal programs by means of a prompt at the beginning of the line in the  form of “” for device A:.
Examples (do not enter prompt – it’s generated by the terminal program): VER

• read out version information from device A: ALL, VER
• read out version information from all available devices
  C1: VER, EGES 1 VER read-out from device C1: and read-out of ETOT 1 from device A: (change of device context one-time only for C1:)
  C1: , VER, EGES 1 VER read-out and read-out of ETOT 1 from device C1: (C1: becomes line context – valid through the end of the line)
  C1: , VER, AA : ETOT 1 VER read-out from device C1: and ETOT 1 from device A: (although C1. becomes line context, special ID AA: applies to ETOT A:)

Repair and Replacement Parts Service
DAkkS Calibration Center and Rental Instrument Service
If required please contact:
GMC-I Service GmbH
Service Center
Beuthener Str. 41
90471 Nürnberg, Germany
Phone: +49 911 817718-0
Fax: +49 911 817718-253
e-mail: service@gossenmetrawatt.com
www.gmci-service.com
This address is only valid in Germany. Please contact our representatives or subsidiaries for service in other countries.
Industrial Product Support
If required please contact:
Gossen Metrawatt GmbH
Industrial Product Support Hotline
Phone: +49-911-8602-0
Fax: +49-911-8602-340
e-mail: support.industrie@gossenmetrawatt.com

Returns and Environmentally Sound Disposal

This instrument is subject to directive 2012/19/EC on Waste Electrical and Electronic
Equipment (WEEE) and its German national equivalent implemented as the Waste Electrical and Electronic Equipment Act (ElektroG) on the marketing, return and environmentally sound disposal of electrical and electronic equipment. The device is a category 9 product (monitoring and control instrument) in accordance with ElektroG (German Waste Electrical and Electronic Equipment Act).
The symbol at the left indicates that this device and its electronic accessories must be disposed of in accordance with applicable legal regulations, and not together with household trash. In order to dispose of the instrument, bring it to a designated collection point or contact our product support department.
This instrument is also subject to directive 2006/66/EC on batteries and accumulators and waste batteries and accumulators and its German national equivalent implemented as the Battery Act (BattG) on the marketing, return and environmentally sound disposal of batteries and accumulators.
The symbol at the left indicates that batteries and rechargeable batteries must be disposed of in accordance with applicable legal regulations. Batteries and rechargeable batteries may not be disposed of with household trash. In order to dispose of the batteries or rechargeable batteries, remove them from the instrument and bring them to a designated collection point.
Segregated disposal and recycling conserves resources and protects our health and the environment.
Current and further information is available on our website at http://www.gossenmetrawatt.com under the search terms “WEEE” and “environmental protection”.

References

• trawatt.com
• Servicepartner für Kalibrierungen, Reparaturen, Ersatzteile, Mietgeräte | GOSSEN METRAWATT GMC-I Service GmbH
• GOSSEN METRAWATT, GMC-Instruments

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