TERACOM TDI340 S0 Pulse Counter with Modbus RTU Interface User Manual

TERACOM TDI340 S0 Pulse Counter with Modbus RTU Interface User Manual

Short description

TDI340 is а S0 pulse counter with the MODBUS RTU interface. It has 4 isolated digital inputs, complying with the S0 standard 62053-31. The S0 pulse counter works in polling or edge modes. In edge mode, it can be set up to count on rising, falling, and both edges.
The device is dedicated to the S0 pulse counter but it also provides simultaneous readings for the state of the digital inputs – OPEN/CLOSE. Independent delays for Low-To-High and High-To-Low transitions can be applied. The delays are from 0 to 656 seconds in а 10mS step and work if the counter for the corresponding digital input is in polling mode.

Features

• RS-485 interface carrying up to 63 nods;
• Non-volatile memory for the counters;
• LED indicator for the status of communication;
• Isolated digital inputs;
• 32-bit counters;
• Built-in 120ohms termination resistor;
• DIN rail mounting;
• Firmware update via the interface.

Applications

• Remote monitoring of measurement device with an S0 output;
• Remote data acquisition;
• Industrial process control.
• Process monitoring.
• Energy management.

Specifications

• Physical characteristics
  Dimensions: 35x86x59 mm (2 module enclosure)
  Weight: 60 g
  Mounting: On 35 mm DIN top-hat rail

• Environmental limits
  Operating temperature range: -20 to 60°C
  Operating relative humidity range: 10 to 90% (non-condensing)
  Storage temperature range: -25 to 65°C
  Storage relative humidity range: 5 to 95% (non-condensing)
  Ingress protection: IP40 (connections IP20)

• Power supply
  Operating voltage range (including -15/+20% according to IEC 62368-1): 5 to 30 VDC
  Current consumption: 50mA@5V

• Digital inputs
  Isolation: Functional, 1kV DC
  Independent modes: OPEN/CLOSED (“Dry contact”) and COUNTER (S0 compatible)
  Maximum count value: 232 – 1
  Maximum input voltage: +5.5VDC
  Maximum source impedance for “0” reading: 800 Ohm
  Minimum source impedance for “1” reading: 1 MOhm
  Current max. (With 0-ohm source impedance): 3 mA
  Maximum frequency for edge counter mode: 100Hz
  Polling period: 10mS
  L-H/H-L transition delay interval: 0 to 65535 x (polling period); not available for edge counter mode

• Interface
  Protocol: Modbus RTU
  Physical layer: RS-485 serial line
  Number of bus transceivers: up to 63
  Bus cable: Twisted, shielded, 2×0.5mm²
  Response time Read/Write: 50mS maximum

• Connectors
  Type: 3.81mm pitch screwless pluggable for 28 to 16 (AWG) / 0.081 to 1.31 (mm²) wires

• Warranty
  Warranty period: 3 years

Status indicator

The status of the device is shown by a single LED, located behind the semitransparent front panel:

• If the LED blinks for a period of 1 second, the sensor works properly;
• If the LED blinks for a period of 3 seconds, there isn‘t communication with the controller;
• If the LED doesn‘t blink, there isn‘t a power supply.

Pinout

• 5-pins connector
  1 – +VDD (5 to 30)
  2 – GND
  3 – Line-A+
  4 – Line-B5 – Terminator

• 6-pins connector
  1 – Digital input 1 (S01+)
  2 – SGND
  3 – Digital input 2 (S02+)
  4 – Digital input 3 (S03+)
  5 – SGND
  6 – Digital input 4 (S04+)

Installation

Two-Wire MODBUS definition according to modbus.org:
“A MODBUS solution over a serial line should implement a “Two-Wire” electrical interface in accordance with EIA/TIA-485 standard. On such a “Two-Wire” topology, at any time one driver only has the right for transmitting.
In fact, a third conductor must also interconnect all the devices of the bus – the common.”

A daisy-chain (linear) topology and UTP/FTP cables for multiple sensors are strongly recommended.
For proper operation of the interface, terminators (120 ohms resistors) must be installed at both ends of the bus.
The device has a built-in 120-ohm resistor and to terminate the line, “Line B-“and “Term” must be shortened.

Factory default settings

Disconnect the power supply.
Press and hold the “Setup” button. Connect the power supply not releasing the button.
The status LED will be ON for 3 seconds and after this will flash for 7 seconds. After that, the LED will be ON again.
Release the button. The device will restart with factory default settings.

Firmware update

The firmware of the device can be updated by Teracom controller with MODBUS RTU supports or TSU100
(Teracom 1-Wire and MODBUS RTU devices update module).
To put the sensor in update mode, do the following:
Disconnect the sensor from the bus. Disconnect the power supply.
Press and hold the “Setup” button. Connect the power supply not releasing the button.
The status LED will be ON for 3 seconds. If in these 3 seconds, the button is released and pressed 3 times the device goes into update mode.
In the update mode status LED will be ON permanently.
Important: The sensor can be updated only if it is alone on the bus.

Modbus address table

Register name| R/W| FC| PDU decimal address| Logical decimal address| Data size| Default| Valid values
---|---|---|---|---|---|---|---
Holding registers
RS-485 address| R/W| 3,6,16| 10| 40011| uint16| 1| 1 to 247
Baud rate | R/W| 3,6,16| 11| 40012| uint16| 19200| 2400, 4800, 9600, 19200, 38400, 57600
Parity, data, stop bits | R/W| 3,6,16| 12| 40013| uint16| 1| 1=E81, 2=O81, 3=N81
Data order| R/W| 3,6,16| 13| 40014| uint16| 1| 1=MSWF (MSW, LSW)
2=LSWF (LSW, MSW)
Sub-family number| R| 3| 14| 40015| uint16| | 0xDF
FW version| R| 3| 15| 40016| uint16| |
Vendor URL| R| 3| 18| 40019| 64 bytes UTF-8| | teracomsystems.com
Counter mode Input1| R/W| 3,6,16| 110| 40111| uint16| 2| 1=Polling 2=Edge
Counter edge Input1| R/W| 3,6,16| 111| 40112| uint16| 1| 1=Rising 2=Falling 3=Both
Impulses per real value Input1| R/W| 3,6,16| 112| 40113| uint16| 2000| 0 to 65535
Delay Low-to-High Input1 (x10mS)| R/W| 3,6,16| 113| 40114| uint16| 0| 0 to 65535
Delay High-to-Low Input1 (x10mS)| R/W| 3,6,16| 114| 40115| uint16| 0| 0 to 65535
Counter mode Input2| R/W| 3,6,16| 120| 40121| uint16| 2| 1=Polling 2=Edge
Counter edge Input2| R/W| 3,6,16| 121| 40122| uint16| 1| 1=Rising 2=Falling 3=Both
Impulses per real value Input2| R/W| 3,6,16| 122| 40123| uint16| 2000| 0 to 65535
Delay Low-to-High Input2 (x10mS)| R/W| 3,6,16| 123| 40124| uint16| 0| 0 to 65535
Delay High-to-Low Input2 (x10mS)| R/W| 3,6,16| 124| 40125| uint16| 0| 0 to 65535
Counter mode Input3| R/W| 3,6,16| 130| 40131| uint16| 2| 1=Polling 2=Edge
Counter edge Input3| R/W| 3,6,16| 131| 40132| uint16| 1| 1=Rising 2=Falling 3=Both
Impulses per real value Input3| R/W| 3,6,16| 132| 40133| uint16| 2000| 0 to 65535
Delay Low-to-High Input3 (x10mS)| R/W| 3,6,16| 133| 40134| uint16| 0| 0 to 65535
Delay High-to-Low Input3 (x10mS)| R/W| 3,6,16| 134| 40135| uint16| 0| 0 to 65535
Counter mode Input4| R/W| 3,6,16| 140| 40141| uint16| 2| 1=Polling
2=Edge
Counter edge Input4| R/W| 3,6,16| 141| 40142| uint16| 1| 1=Rising 2=Falling 3=Both
Impulses per real value Input4| R/W| 3,6,16| 142| 40143| uint16| 2000| 0 to 65535
Delay Low-to-High Input4 (x10mS)| R/W| 3,6,16| 143| 40144| uint16| 0| 0 to 65535
Delay High-to-Low Input4 (x10mS)| R/W| 3,6,16| 144| 40145| uint16| 0| 0 to 65535
All digital inputs binary| R| 3| 200| 40201| uint16| | 0b0000000000000000 to 0b0000000000001111
Digital Input1 binary| R| 3| 201| 40202| uint16| | 0b0000000000000000 to 0b0000000000000001
Digital Input2 binary| R| 3| 202| 40203| uint16| | 0b0000000000000000 to 0b0000000000000001
Digital Input3 binary| R| 3| 203| 40204| uint16| | 0b0000000000000000 to 0b0000000000000001
Digital Input4 binary| R| 3| 204| 40205| uint16|  | 0b0000000000000000 to 0b0000000000000001
Counter Input1 32-bit| R/W| 3,6,16| 210| 40211| uint32|  |
Counter Input2 32-bit| R/W| 3,6,16| 212| 40213| uint32| |
Counter Input3 32-bit| R/W| 3,6,16| 214| 40215| uint32|  |
Counter Input4 32-bit| R/W| 3,6,16| 216| 40217| uint32| |
Counter Input1 LOW 16-bit| R/W| 3,6,16| 220| 40221| uint16| | The HIGH 16-bits are zero after writing
Counter Input2 LOW 16-bit| R/W| 3,6,16| 221| 40222| uint16|  | The HIGH 16-bits are zero after writing
Counter Input3 LOW 16-bit| R/W| 3,6,16| 222| 40223| uint16| | The HIGH 16-bits are zero after writing
Counter Input4 LOW 16-bit| R/W| 3,6,16| 223| 40224| uint16| | The HIGH 16-bits are zero after writing
Counter Input1 real value| R| 3| 230| 40231| 32-bit float|  | Counter Input1/(Impulses per real value Input1)
Counter Input2 real value| R| 3| 232| 40233| 32-bit float|  | Counter Input2/(Impulses per real value Input2)
Counter Input3 real value| R| 3| 234| 40235| 32-bit float|  | Counter Input3/(Impulses per real value Input3)
Counter Input4 real value| R| 3| 236| 40237| 32-bit float|  | Counter Input4/(Impulses per real value Input4)
Float test value (MSW)| R| 3| 840| 40841| 32-bit float|  | -9.9(0xC11E6666)
Float test value (LSW)| R| 3| 842| 40843| 32-bit float|  | -9.9(0xC11E6666)
Signed integer test value| R| 3| 844| 40845| sint16|  | -999(0xFC19)
Signed integer test value (MSW)| R| 3| 845| 40846| sint32|  | -99999(0xFFFE7961)
Signed integer test value (LSW)| R| 3| 847| 40848| sint32|  | -99999(0xFFFE7961)
Unsigned integer test value| R| 3| 849| 40850| uint16|  | 999(0x03E7)
Unsigned integer test value (MSW)| R| 3| 850| 40851| uint32| | 99999(0x0001869F)
Unsigned integer test value (LSW)| R| 3| 852| 40853| uint32|  | 99999(0x0001869F)
Discrete inputs
Input1| R| 2| 1| 10002| bit|  | 0 or 1
Input2| R| 2| 2| 10003| bit|  | 0 or 1
Input3| R| 2| 3| 10004| bit|  | 0 or 1
Input4| R| 2| 4| 10005| bit|  | 0 or 1

MSW – Most significant word first – (bits 31 … 16), (bits 15 … 0);
LSW – Least significant word first – (bits 15 … 0), (bits 31 … 16);
PDU address – Actual address bytes used in a Modbus Protocol Data unit;
A “NaN” value is returned for unavailable floating-point values (e.g. in case of error);

• The settings will take effect after restarting the device by power off, power on.

Recycling

Recycle all applicable material.

Do not dispose of in the regular household refuse.

References

• Remote monitoring and control solution for your automation challenges

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