ModMAG M2000 BACnet MS/TP Communication Protocol Electromagnetic Flow Meters User Manual
- June 2, 2024
- ModMAG
Table of Contents
ModMAG M2000 BACnet MS/TP Communication Protocol Electromagnetic Flow
Meters
ABOUT THIS MANUAL
Definitions
| BACnet | Building Automation and Control Networks |
|---|---|
| DB | Daughterboard |
| MS/TP | Master-Slave/Token-Passing |
| PTP | Point-to-Point |
| SPS | Alternate abbreviation for PLC (Programmable Logic Controller) |
| User Units | Defined by configuration of the meter’s volume unit or |
flow unit
Scope
This document discusses the supported features of serial BACnet MS/TP, how
these features are related to the M2000, and the special considerations and
type of data that is accessible over BACnet MS/TP. This document assumes
general understanding of the BACnet MS/TP protocol by the reader. For further
information regarding the BACnet Protocol, refer to
www.bacnet.org. The M2000 BACnet MS/TP daughterboard
supports BACnet MS/TP protocol, Revision 19. The BACnet MS/TP daughterboard
acts as a BACnet MS/TP master node (Data Link Layer) with the device profile
of BACnet-Smart Actuator (B-SA). It interfaces directly to MS/TP based
systems.
INTRODUCTION
BACnet is a Data Communication Protocol for Building Automation and Control Networks. Developed under the auspices of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), BACnet is an American national standard, a European standard, a national standard in more than 30 countries, and an ISO global standard. The protocol is supported and maintained by ASHRAE Standing Standard Project Committee 135.
INSTALLATION
Pre-Installed Daughterboard
Most daughterboard installations will be completed in the factory and shipped
pre-installed into the main board. Follow these steps to set up your M2000
BACnet MS/TP device.
- Power on the M2000.
- Allow time for the daughterboard to properly power up and be recognized by the M2000 before navigating the menus.This time is typically 3 seconds or less. If the BACnet MS/TP daughterboard is not recognized, cycle the M2000 power.
- Navigate in the menu to Main Menu > Communications > Daughterbrd Config.
- Configure the settings in the table below to what is required for the BACnet MS/TP network.
Parameter| Default Value| Comments
---|---|---
BACnet MS/TP Baud| 9600| Baud Rate of the BACnet MS/TP network . Common settings are 9600, 19200, 38400
and 76800 .
BACnet MS/TP MAC ID| 1| Sets BACNET MS/TP Device ID of module/meter . Max
value = 127
BACnet Max Master| 127| Sets the max master variable for the device . Max
value = 127
BACnet Instance| 10001| Sets the BACnet Instance number . The instance number
is an unsigned decimal number that can range from 0 to 4,194,302 . Every
device on a BACnet network gets
an instance number, and two devices must not have the same number .
- After configuration of all parameters, exit the menu system back to the M2000 Home screen.
- Cycle power to the M2000 meter for any daughterboard configuration changes to take place.
Wiring the RS-485 Connections
NOTE:
Power off the M2000 before making the RS-485 wiring connections. Use the
following information to wire signals to the 6-pin customer connector. See
Figure 2.
| Terminal Number | Pin Description | Comments |
|---|---|---|
| 71 | RS-485 B+ | RS-485 Non-Inverting I/O 15kV HBM ESD Protected RS-485 level |
| 72 | RS-485 A- | RS-485 Inverting I/O15kV HBM ESD Protected RS-485 level |
| 73 | Analog GND | 0/4…20 mA (Terminal 15-) |
| 74 | Analog Output | 0/4…20 mA (Terminal 16+) |
| 75 | 24V DC Ext | 24V DC Output |
| 76 | GND | Isolated Ground (GND) |
In-Field Upgrade
Prerequisites
- Installing a BACnet MS/TP daughterboard into an M2000 requires firmware revision v1.22 or later.
- The main board (revision 2 or later) must have a 12-pin connector for this interface.
Installing the Daughterboard
The BACnet MS/TP daughterboard connects to the 12-pin connector labeled
COMMUNICATION on the main board.
Follow these steps to install the daughterboard hardware.
-
Prior to installing the daughterboard, verify or configure the M2000 Communication Port B Settings. The Port B Settings are located at Main Menu > Communications > Port B Settings.
Parameter| Value
---|---
Port Address| 1
Ext . Port Address| 126
Baud Rate| 9600
Data Bits| 8 bits
Parity| Even
Stop Bits| 1 bit -
Exit the communications menu back to the M2000 Home screen.
-
Power off the M2000.
CAUTION
DISCONNECT THE INPUT POWER BEFORE ACCESSING THE EQUIPMENT. This step is important for the M2000 to properly recognize the BACnet MS/TP daughterboard.
-
Prior to inserting the daughterboard, install the foam insulation pad as shown in Figure 4 on page 6. Be sure to align the groove with the two screws attaching the detector or wall mount bracket to the enclosure. The primary purpose of this pad is to ensure the daughterboard is insulated from the enclosure wall. It is important to install this pad flush with the top of the enclosure wall.
-
Insert the 12-pin daughterboard into the 12 pin-connector.
-
Power on the M2000.
-
Allow time for the daughterboard to properly power up and be recognized by the M2000 before navigating the menus. This time is typically 3 seconds. If the BACnet MS/TP daughterboard is not recognized, cycle the M2000 power. 8. Verify recognition of the BACnet MS/TP daughterboard. Navigate to Main Menu > Info/Help. The Daughterboard Info field
indicates the Daughterboard Type is BACnet MS/TP (Bn_mstp). -
From this point, follow the typical installation procedure.
SYSTEM CONFIGURATION
BACnet Protocol Implementation Conformance Statement
- Date : March 4, 2022
- Vendor Name : Badger Meter (Vendor 306)
- Product Name : M2000 Mag Meter
- Product Model Number : M2000
- Application Software Version : M-Series v1.22
- Firmware Revision : v1.02
- BACnet Protocol Revision : 1.19
Product Description
The ModMAG M2000 Electromagnetic flow meter has a wide selection of liner and
electrode materials to help ensure maximum compatibility and minimum
maintenance over a long operating period.
BACnet Standardized Device Profiles Supported (Annex L)
BACnet Smart Actuator (B-SA)
BACnet Interoperability Building Blocks Supported (Annex K)
- Data Sharing-ReadProperty-B (DS-RP-B)
- Data Sharing-ReadPropertyMultiple-B (DS-RPM-B)
- Data Sharing-WriteProperty-B (DS-WP-B)
- Device Management-Dynamic Device Binding-B (DM-DDB-B)
- Device Management-Dynamic Object Binding-B (DM-DOB-B)
- Device Management-ReinitializeDevice-B (DM-RD-B)
Standard Object Types Supported
Object- Type| Dynamically
Createable
| Dynamically
Deleteable
| Optional Properties Supported| Writable Properties
---|---|---|---|---
Device| No| No| Description,
Max Master, Max Info Frames
| Max Master,
Max Info Frames
Network Port| No| No| Link Speed Link Speeds MAC Address Max Master
Max Info Frames
| Link Speed MAC Address Max Master
Max Info Frames
Analog Value| No| No| —| Present Value
Character String| No| No| —| Present Value
Range Restrictions for the Device Object
| Object- Type | Property | Range Restriction |
|---|---|---|
| Device | Max Master |
Max Info Frames
| 1 ~ 127
1 ~ 255
Network Port
| Link Speed MAC Address Max Master
Max Info Frames
| 9600, 19200, 38400, 57600, 76800
1 ~ 127
1 ~ 127
1 ~ 255
Data Link Layer Option Supported
MS/TP master (Clause 9), baud rate(s): 9600, 19200, 38400, 76800
Segmentation Capability Supported
None
Character Sets Supported
ISO 10646 (UTF-8)
DATA MANAGEMENT
The BACnet MS/TP interface is based on BACnet Protocol Revision 19 and supports the following objects:
- One Device Object – contains parameters pertaining to the M2000 device
- 170 Analog Value Objects – contains parameters pertaining to meter specific parameters
- 17 Custom String Values – contains device specific string data pertaining to the connected meter
- One Network Port Object – Contains all BACnet network options and status
Device Object
Every BACnet device must have a Device Object, the Properties of which fully
describe the BACnet device to the network. The Object_List Property of the
Device Object, for example, provides a list of every Object contained within
the BACnet device. The Vendor_Name, Vendor_Identifier and Model_Name
Properties provide the manufacturer name and model of the device.
| BACnet Property | Value |
|---|---|
| Apdu Timeout | 3000 |
| Application Software Version | M-Series v1 .22 |
| Database Revision | 0 |
| Description | Magnetic Flow Meter |
| Device Address Binding | — |
| Firmware Revision | 1 .02 |
| Location | — |
| Max Apdu Length Accepted | 480 |
| Max Info Frames | 1 |
| Max Master | 127 |
| Model Name | M2000 |
| Number of Apdu Retries | 3 |
| Object Identifier | OBJECT_DEVICE: 10001 |
| Object Name | M2000 Mag Meter |
| Object Type | 8 : Object Device |
| Property List | Object Array |
| Protocol Object Types Supported |
001000001000000000000000000000000000000010000000000000001000
Protocol Revision| 19
Protocol Services Supported| 00000000000010110100100000000000011000000000
Protocol Version| 1
Segmentation Supported| 3 : None
System Status| 0 : Operational
Vendor Identifier| 306
Vendor Name| Badger Meter
Analog Value Objects & Character String Objects
This list specifies all the analog values accessible by the BACnet MS/TP
network.
Measurements Category
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
31| VelocityUnits| INTEGER| READ_WRITE| AV13
32| FlowUnits| INTEGER| READ_WRITE| AV14
33| VolumeUnits| INTEGER| READ_WRITE| AV15
34| UnitMultiplier| INTEGER| READ_WRITE| AV16
35| ZeroScaleFlow| FLOAT| READ_WRITE| AV17
36| FullScalVelocity| FLOAT| READ_WRITE| AV18
37| FullScaleFlow| FLOAT| READ_WRITE| AV19
38| LowFlowCutoff| FLOAT| READ_WRITE| AV20
39| FlowDirection| INTEGER| READ_WRITE| AV21
40| DampingFactor| INTEGER| READ_WRITE| AV22
Product Identification Category
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
1| ProductCode| INTEGER| READ_ONLY| AV161
2| ProductName| STRING| READ_ONLY| CSV0
3| FirmwareName| STRING| READ_ONLY| CSV1
4| ApplicationVer| STRING| READ_WRITE| CSV2
5| CompileDate| STRING| READ_ONLY| CSV3
6| CompileTime| STRING| READ_ONLY| CSV4
7| PCBSerialNum| STRING| READ_WRITE| CSV5
8| OTPBootChecksum| STRING| READ_ONLY| CSV6
9| FlashOSChecksum| STRING| READ_ONLY| CSV7
10| BootVer| STRING| READ_ONLY| CSV8
11| OsVer| STRING| READ_ONLY| CSV9
12| ComBoardProdType| INTEGER| READ_ONLY| AV146
13| ComBoardMajorVer| INTEGER| READ_ONLY| AV147
14| ComBoardMinorVer| INTEGER| READ_ONLY| AV148
15| PwrOnSplashLn1| STRING| READ_WRITE| CSV10
16| PwrOnSplashLn2| STRING| READ_WRITE| CSV11
17| MeterTagName| STRING| READ_WRITE| CSV12
Meter Calibration Category
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
18| DetDiamEnum| INTEGER| READ_WRITE| AV0
19| DetDiamActual| INTEGER| READ_WRITE| AV1
20| DetectorFactor| FLOAT| READ_WRITE| AV2
21| FACT_DetFactor| FLOAT| READ_ONLY| AV3
22| DetectorOffset| FLOAT| READ_WRITE| AV4
23| FACT_DetOffset| FLOAT| READ_ONLY| AV5
24| AmplifierFactor| FLOAT| READ_WRITE| AV6
25| FACT_AmpFactor| FLOAT| READ_ONLY| AV7
26| DetectorCurrent| FLOAT| READ_WRITE| AV8
27| FACT_DetCurrent| FLOAT| READ_ONLY| AV9
28| PowerLineFreq| INTEGER| READ_WRITE| AV10
29| ExcitationFreq| INTEGER| READ_WRITE| AV11
30| ScaleFactor| FLOAT| READ_WRITE| AV12
Meter Measurement Settings Category
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
101| T1_Tplus_m3| FLOAT| READ_ONLY| AV82
102| T1_Tplus_User| FLOAT| READ_ONLY| AV83
103| T1_TplusDispStr| STRING| READ_ONLY| CSV14
104| T2_Tminus_m3| FLOAT| READ_ONLY| AV84
105| T2_Tminus_User| FLOAT| READ_ONLY| AV85
106| T2_TminusDispStr| STRING| READ_ONLY| CSV15
107| T3_TNet_m3| FLOAT| READ_ONLY| AV86
108| T3_TNet_User| FLOAT| READ_ONLY| AV87
109| T3_TNetDispStr| STRING| READ_ONLY| CSV16
110| T1_TplusRollCtr| INTEGER| READ_ONLY| AV88
111| T2_TminusRollCtr| INTEGER| READ_ONLY| AV89
112| FlowVelocity_MS| FLOAT| READ_ONLY| AV90
113| FlowVelocity_Usr| FLOAT| READ_ONLY| AV91
114| FlowRate_m3| FLOAT| READ_ONLY| AV92
115| FlowRate_User| FLOAT| READ_ONLY| AV93
116| RelFlowRatePerc| FLOAT| READ_ONLY| AV94
117| PresBatchTot_m3| FLOAT| READ_ONLY| AV95
118| PresBatchTot_Usr| FLOAT| READ_ONLY| AV96
119| FlowDirection| INTEGER| READ_ONLY| AV97
Digital Input Category
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
41| DigInOperation| INTEGER| READ_WRITE| AV23
42| DigInStatus| INTEGER| READ_ONLY| AV24
Output 1 Category
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
56| Out1_PPUnit_m3| FLOAT| READ_WRITE| AV37
57| Out1_PPUnit_user| FLOAT| READ_WRITE| AV38
58| Out1_PulseWidth| INTEGER| READ_WRITE| AV39
59| Out1_FS_Freq| INTEGER| READ_WRITE| AV40
60| Out1_AlarmMin| INTEGER| READ_WRITE| AV41
61| Out1_AlarmMax| INTEGER| READ_WRITE| AV42
62| Out1_Mode| INTEGER| READ_WRITE| AV43
63| Out1_Operation| INTEGER| READ_WRITE| AV44
Output 2 Category
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
64| Out2_PPUnit_m3| FLOAT| READ_WRITE| AV45
65| Out2_PPUnit_user| FLOAT| READ_WRITE| AV46
66| Out2_PulseWidth| INTEGER| READ_WRITE| AV47
67| Out2_FS_Freq| INTEGER| READ_WRITE| AV48
68| Out2_AlarmMin| INTEGER| READ_WRITE| AV49
69| Out2_AlarmMax| INTEGER| READ_WRITE| AV50
70| Out2_Mode| INTEGER| READ_WRITE| AV51
71| Out2_Operation| INTEGER| READ_WRITE| AV52
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
72| Out3_FS_Freq| INTEGER| READ_WRITE| AV53
73| Out3_AlarmMin| INTEGER| READ_WRITE| AV54
74| Out3_AlarmMax| INTEGER| READ_WRITE| AV55
75| Out3_Mode| INTEGER| READ_WRITE| AV56
76| Out3_HW_Select| INTEGER| READ_WRITE| AV57
77| Out3_Operation| INTEGER| READ_WRITE| AV58
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
78| Out4_AlarmMin| INTEGER| READ_WRITE| AV59
79| Out4_AlarmMax| INTEGER| READ_WRITE| AV60
80| Out4_Mode| INTEGER| READ_WRITE| AV61
81| Out4_HW_Select| INTEGER| READ_WRITE| AV62
82| Out4_Operation| INTEGER| READ_WRITE| AV63
77| Out3_Operation| INTEGER| READ_WRITE| AV58
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
43| AnalogOutRange| INTEGER| READ_WRITE| AV25
44| AnalogOutOffset| FLOAT| READ_ONLY| AV26
45| AnalogOutCalPtA| FLOAT| READ_WRITE| AV27
46| AnalogOutCalPtB| FLOAT| READ_WRITE| AV28
47| FACT_AOutCalPtA| FLOAT| READ_ONLY| AV29
48| FACT_AOutCalPtB| FLOAT| READ_ONLY| AV30
49| AnalogOutSlope| FLOAT| READ_ONLY| AV31
50| AnalogOffset4MA| FLOAT| READ_WRITE| AV32
51| AnalogOffset20MA| FLOAT| READ_WRITE| AV33
52| AnalogOutCurrent| FLOAT| READ_ONLY| AV34
53| AOutCurrentStr| STRING| READ_ONLY| CSV13
54| AlarmMode| INTEGER| READ_WRITE| AV35
55| FixedCurrentMode| FLOAT| READ_ONLY| AV36
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
83| A_PacketsProc| INTEGER| READ_ONLY| AV64
84| A_BcastPackets| INTEGER| READ_ONLY| AV65
85| A_CRCErrs| INTEGER| READ_ONLY| AV66
86| A_PacketsRcvd| INTEGER| READ_ONLY| AV67
87| A_PacketsSent| INTEGER| READ_ONLY| AV68
88| A_ParityErrs| INTEGER| READ_ONLY| AV69
89| A_FramingErrs| INTEGER| READ_ONLY| AV70
90| A_OverrunErrs| INTEGER| READ_ONLY| AV71
91| A_BreakDets| INTEGER| READ_ONLY| AV72
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
92| B_PacketsProc| INTEGER| READ_ONLY| AV73
93| B_BcastPackets| INTEGER| READ_ONLY| AV74
94| B_CRCErrs| INTEGER| READ_ONLY| AV75
95| B_PacketsRcvd| INTEGER| READ_ONLY| AV76
96| B_PacketsSent| INTEGER| READ_ONLY| AV77
97| B_ParityErrs| INTEGER| READ_ONLY| AV78
98| B_FramingErrs| INTEGER| READ_ONLY| AV79
99| B_OverrunErrs| INTEGER| READ_ONLY| AV80
100| B_BreakDets| INTEGER| READ_ONLY| AV81
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
174| BacnetMSTPBaud| LONG| READ_WRITE| AV155
175| BacnetMSTPMacId| INTEGER| READ_WRITE| AV156
176| BacnetMaxMaster| INTEGER| READ_WRITE| AV157
177| BacnetInstance| LONG| READ_WRITE| AV158
182| BacnetMaxInfoFrm| INTEGER| READ_WRITE| AV164
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
137| PowerLossTot_s| LONG| READ_ONLY| AV115
138| DispBklightMode| INTEGER| READ_WRITE| AV116
139| PreBatchAmt| FLOAT| READ_WRITE| AV117
140| MenuResetAllowed| INTEGER| READ_WRITE| AV118
141| MenuLangSetting| INTEGER| READ_WRITE| AV119
142| FileSysNumRecsRd| INTEGER| READ_WRITE| AV120
143| ConfigStatus| INTEGER| READ_ONLY| AV121
144| PortBExtAddr| INTEGER| READ_ONLY| AV122
157| SoftwreMedianFlt| INTEGER| READ_WRITE| AV135
158| IIRCoefActualVal| FLOAT| READ_ONLY| AV136
159| IIRActualState| INTEGER| READ_WRITE| AV137
160| IIRCoefMin| FLOAT| READ_WRITE| AV138
161| IIRCoefMax| FLOAT| READ_WRITE| AV139
162| IIRHysteresis| FLOAT| READ_WRITE| AV140
163| IIRSensitivity| FLOAT| READ_WRITE| AV141
164| ZFlowStabSize| FLOAT| READ_WRITE| AV142
165| ZFlowStabExp| INTEGER| READ_WRITE| AV143
166| ZFlowStabAcc| FLOAT| READ_ONLY| AV144
167| ZFlowStabTimer| INTEGER| READ_ONLY| AV145
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
145| AnalogInMeasVal| FLOAT| READ_ONLY| AV123
146| AnalogInMeasCtr| INTEGER| READ_WRITE| AV124
147| EmptyPipeActRes| FLOAT| READ_ONLY| AV125
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
148| EmptyPipeCal_V| FLOAT| READ_WRITE| AV126
149| EmptyPipeMeasVal| FLOAT| READ_ONLY| AV127
150| FullPipeCal_V| FLOAT| READ_WRITE| AV128
151| EmptyPipeMode| INTEGER| READ_WRITE| AV129
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
152| CmdActionReq| INTEGER| READ_WRITE| AV130
153| FlowSimulation| SIGNED INTEGER| READ_WRITE| AV131
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
154| SecurityStatus| INTEGER| READ_ONLY| AV132
155| RandomVal| LONG| READ_ONLY| AV133
156| RemoteLogin| LONG| WRITE_ONLY| AV134
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
157| SoftwreMedianFlt| INTEGER| READ_WRITE| AV135
158| IIRCoefActualVal| FLOAT| READ_ONLY| AV136
159| IIRActualState| INTEGER| READ_WRITE| AV137
160| IIRCoefMin| FLOAT| READ_WRITE| AV138
161| IIRCoefMax| FLOAT| READ_WRITE| AV139
162| IIRHysteresis| FLOAT| READ_WRITE| AV140
163| IIRSensitivity| FLOAT| READ_WRITE| AV141
164| ZFlowStabSize| FLOAT| READ_WRITE| AV142
165| ZFlowStabExp| INTEGER| READ_WRITE| AV143
166| ZFlowStabAcc| FLOAT| READ_ONLY| AV144
167| ZFlowStabTimer| INTEGER| READ_ONLY| AV145
Index| Parameter Name| Data Type| Network
Access| BACnet Object ID
---|---|---|---|---
168| RESERVED| RESERVED| RESERVED| AV149
169| RESERVED| RESERVED| RESERVED| AV150
170| RESERVED| RESERVED| RESERVED| AV151
171| RESERVED| RESERVED| RESERVED| AV152
172| RESERVED| RESERVED| RESERVED| AV153
173| RESERVED| RESERVED| RESERVED| AV154
174| BacnetMSTPBaud| INTEGER| READ_WRITE| AV155
175| BacnetMSTPMacId| INTEGER| READ_WRITE| AV156
176| BacnetMaxMaster| INTEGER| READ_WRITE| AV157
177| BacnetInstance| INTEGER| READ_WRITE| AV158
178| RESERVED| RESERVED| RESERVED| AV159
179| RESERVED| RESERVED| RESERVED| AV160
180| RESERVED| RESERVED| RESERVED| AV162
181| RESERVED| RESERVED| RESERVED| AV163
182| RESERVED| RESERVED| RESERVED| AV164
183| RESERVED| RESERVED| RESERVED| AV165
184| RESERVED| RESERVED| RESERVED| AV166
185| RESERVED| RESERVED| RESERVED| AV167
186| RESERVED| RESERVED| RESERVED| AV168
187| RESERVED| RESERVED| RESERVED| AV169
TROUBLESHOOTING
| Symptoms | Possible Causes | Recommended Actions |
|---|---|---|
| No communication | Transmit and receive are |
wired incorrectly .
| Check the network wiring from the meter .
Baud rate does not match master .| Check the baud rate of the master and
ensure the baud rate of the meter matches the master . If it does not match,
change
the Baud Rate setting in the Communication menu .
Check LED behavior on the daughterboard . There should be a “fast” blink (4 flashes per second) .| If LED is solid green or is a slow blink (1 flash per second) the daughterboard is not communicating to the main M2000 board . Check that the daughterboard is properly installed and fully plugged into the terminal on the M2000 board .
If there is still a slow blink on the daughterboard LED, remove the daughterboard, cycle power to the meter, and navigate to the communications menu on the M2000 . Configure Port B to the following settings:
Port Address: 1 Data Bits: 8 bits Parity: Even Stop Bits: 1 bit
The remaining port B settings are not factored into the discovery of the daughterboard and can be left as default values . Exit the menu system back to the M2000 main screen . Power off the meter, plug back in the daughterboard, and
again power up the meter .
MAC address is not unique . Another device is on the network with the
same address .
| Check the addresses of the other devices on the network . Check that the MAC
address is not 1 .
Cable is not terminated properly .| For BACnet MS/TP on EIA-485 network,
devices can be daisy chained together . The two devices on the end of the
chain need to have terminated resistors to reduce reflections .
Terminating resistors (typically 120 Ohm) must be applied externally across the A- and B+ terminals . In point-to-point, or point-to-multipoint (single driver on bus) networks, the main cable should be terminated in its characteristic impedance (typically 120 Ohms) at the end furthest from the driver . In multi-receiver applications, stubs connecting receivers to the main cable should be kept as short as possible . Multipoint (multi-driver) systems require that the main cable be terminated in its characteristic impedance at both ends . Stubs connecting a transceiver to the main cable should be kept as
short as possible .
Cable or chain longer than 100 ft .| RS-485 is intended for network lengths up to 4000 ft, but the maximum system data rate decreases as the transmission length increases . Devices (like this one) operating at 20 Mbps
are limited to lengths less than 100 ft .
| Symptoms | Possible Causes | Recommended Actions |
|---|---|---|
| Intermittent communication | Cable is not properly shielded . | Communication |
cables must have shielding to protect the quality of the communication signals from electromagnetic interference (EMI) . Check that the cable has a shield . Typically, one end of the shield drain is connected to a clean ground to dissipate EMI and prevent ground loops . However, depending on the ground quality, cable length and type of interference, other methods can be employed . Twisted pair is the cable of choice for RS-485 networks . Twisted pair cables tend to pick up noise and other electromagnetically induced voltages as common mode signals, which are effectively rejected by the
differential receivers used in this application .
Cable routed near power cables such a variable frequency drives .| Cables carrying high currents cause a high degree of electromagnetic interference that can interfere with the quality of the communication signals . Route signal cables
away from power cables .
Cable is not terminated properly .| For BACnet MS/TP on EIA-485 network, devices can be daisy chained together . The two devices on the end of the chain need to have terminated resistors to reduce reflections .
Terminating resistors (typically 120 Ohm) must be applied externally across the A- and B+ terminals . In point-to-point, or point-to-multipoint (single driver on bus) networks, the main cable should be terminated in its characteristic impedance (typically 120 Ohms) at the end furthest from the driver . In multi-receiver applications, stubs connecting receivers to the main cable should be kept as short as possible . Multipoint (multi-driver) systems require that the main cable be terminated in its characteristic impedance at both ends . Stubs connecting a transceiver to the main cable should be kept as
short as possible .
Cable or chain longer than 4000 ft .| RS-485 is intended for network lengths up to 4000 ft, but the maximum system data rate decreases as the transmission length increases . Devices (like this one) operating at 20Mbps
are limited to lengths less than 100 ft .
Unable to write specific parameters| Meter is set up with security that prevents changes to certain
write-able values .
| Enter the correct PIN to unlock the device . Refer to the M2000 user manual for more information on the different levels
of security .
BTL CERTIFICATION
For more information regarding this listing, go to the BTL website. WSPCert attests the conformmance of the following BACnet implementation to the BACnet standard Iso 16484-5 protocol revision 1.19. The attested conformance refers to the BACnet Interoperability Buiding Blocks (BIBBs) listed on the BTL Listing bearing the above-mentioned BTL-number.The BACnet implementation has fulfilled the requirements acoording to the test standard IS0 16484-6, the BTL Test Plan 20.0 and the BTL Testing Policies, see Test Report number BACO1018 of TUV SUD Industrie Service GmbH.
Control. Manage. Optimize.
ModMAG is a registered trademark of Badger Meter, Inc. Other trademarks
appearing in this document are the property of their respective entities. Due
to continuous research, product improvements and enhancements, Badger Meter
reserves the right to change product or system specifications without notice,
except to the extent an outstanding contractual obligation exists. © 2022
Badger Meter, Inc. All rights reserved.
www.badgermeter.com
References
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