ABB WaterMaster
Electromagnetic water flowmeter with flow, forward and reverse totals, alarms and diagnostics.
The ABB WaterMaster is an electromagnetic flowmeter that measures the flow and total volume of water in water and wastewater networks and in irrigation, such as in greenhouses. This Modbus RTU template reads volume flow, the forward, reverse and net totals, alarms and diagnostics, and lets you reset totals and change alarm limits, units and output settings from ModbusCloud.
- Protocol
- Modbus RTU
- Connection
- RS485, 19200 baud
- Registers
- 412, read and write
- Brand
- ABB
- Key readings
- Volume flow · Flow as percentage of Qmax · Flow velocity · Forward, reverse and net totals · Alarm status · Electrode and coil diagnostics · Logic output states · Sensor and transmitter identity
- Available commands
- Totalizer reset · Min and max flow alarm limits · Low flow cutoff and damping · Flow and totalizer units · Pulse and logic output settings · Modbus address and serial settings
- Compatible models
- WaterMaster FEX100-MB · WaterMaster FEV11 · WaterMaster FEV12 · WaterMaster FEW11 · WaterMaster FEW12 · WaterMaster FEW31 · WaterMaster FEW32 · WaterMaster FEF12 · WaterMaster FER111 · WaterMaster FER121 · WaterMaster FET10 · WaterMaster FET12
- Last updated
Registers (412)
407 read, 89 write
| Name | Unit | Access | Address (Hidden until you enter your email) | Function (hidden) | Type (hidden) |
|---|---|---|---|---|---|
| Volume Flow | Read | ||||
| Flow Ratio | % | Read | |||
| Flow Velocity | Read | ||||
| Volume Forward Double | Read | ||||
| Volume Reverse Double | Read | ||||
| Volume Net Double | Read | ||||
| Volume Forward | Read | ||||
| Volume Reverse | Read | ||||
| Volume Net | Read | ||||
| Electrode 1 Resistance | kΩ | Read | |||
| Electrode 2 Resistance | kΩ | Read | |||
| Back Off Voltage | V | Read | |||
| Coil and Cable Resistance | Ω | Read | |||
| Coil Inductance | Read | ||||
| Sensor Inductance Shift | % | Read | |||
| Transmitter Average Gain Shift | % | Read | |||
| DO1 Pulses | Hz | Read | |||
| DO2 Pulses | Hz | Read | |||
| DO1 State | Read | ||||
| DO2 State | Read | ||||
| DO3 State | Read | ||||
| Logic OP1 Simulated | Read | ||||
| Pulse OP1 Simulated | Read | ||||
| Logic OP2 Simulated | Read | ||||
| Pulse OP2 Simulated | Read | ||||
| Logic OP3 Simulated | Read | ||||
| Low Flow Alarm | Read | ||||
| High Flow Alarm | Read | ||||
| Flow Above 103% Qmax | Read | ||||
| Flow Simulation Mode | Read | ||||
| Simulator Calibrator Mode | Read | ||||
| Display Overrange | Read | ||||
| Totalizer Reset | Read | ||||
| Poor Sensor Comms | Read | ||||
| Tx Memory Fault | Read | ||||
| No Sensor Detected | Read | ||||
| Measurement Offline | Read | ||||
| Empty Pipe | Read | ||||
| Electrode Open Circuit | Read | ||||
| Electrode Short Circuit | Read | ||||
| Installation Fault | Read | ||||
| Coil Open Circuit | Read | ||||
| Coil Short Circuit | Read | ||||
| Coil Loop Resistance | Read | ||||
| Tx Hardware Fault | Read | ||||
| Bad Flow Data | Read | ||||
| Electrode Voltage Warning | Read | ||||
| OIML Self Check | Read | ||||
| Measurement Starting | Read | ||||
| Sensor Not Calibrated | Read | ||||
| Incompatible Sensor | Read | ||||
| ROM Error | Read | ||||
| RAM Error | Read | ||||
| Alarm Simulation Active | Read | ||||
| NV Summary Alarm | Read | ||||
| Min Flow Alarm Limit | % | Read and write | |||
| Max Flow Alarm Limit | % | Read and write | |||
| Low Flow Cutoff | % | Read and write | |||
| User Zero | Read and write | ||||
| Q Max | Read and write | ||||
| Damping | s | Read and write | |||
| Low Flow Cutoff Hysteresis | % | Read and write | |||
| Probe Pipe Bore | mm | Read and write | |||
| Probe Insertion Factor | Read and write | ||||
| Probe Profile Factor | Read and write | ||||
| Q Max DN Special | Read and write | ||||
| User Span | % | Read and write | |||
| Pulse Width | ms | Read and write | |||
| Limit Frequency | Hz | Read and write | |||
| Full Scale Frequency | Hz | Read and write | |||
| Pulses Per Unit | Read and write | ||||
| Simulation Flow Velocity | Read and write | ||||
| Simulation Volume Flow | Read and write | ||||
| Simulation Flow Ratio | % | Read and write | |||
| Simulation Pulse | Hz | Read and write | |||
| Electrode Resistance Alarm Max | Ω | Read and write | |||
| Electrode Resistance Alarm Min | Ω | Read and write | |||
| Reset Volume Forward | Write | ||||
| Reset Volume Reverse | Write | ||||
| Reset Volume Net | Write | ||||
| Reset All Volume | Write | ||||
| Clear Alarm History | Write | ||||
| Alarm Simulation Select | Read and write | ||||
| Mask Min Flow Alarm | Read and write | ||||
| Mask Max Flow Alarm | Read and write | ||||
| Mask Overrange 103% Alarm | Read and write | ||||
| Mask Maintenance Required Alarms | Read and write | ||||
| Mask Check Function Alarms | Read and write | ||||
| Mask Off Specification Alarms | Read and write | ||||
| Flow Indication | Read and write | ||||
| Meter Mode | Read and write | ||||
| Mains Frequency | Read and write | ||||
| DO1 DO2 Function | Read and write | ||||
| DO1 Logic Signal Source | Read and write | ||||
| DO1 General Alarm Behaviour | Read and write | ||||
| DO1 Min Alarm Behaviour | Read and write | ||||
| DO1 Max Alarm Behaviour | Read and write | ||||
| DO1 Empty Pipe Behaviour | Read and write | ||||
| DO1 Logic Action State | Read and write | ||||
| DO2 Logic Signal Source | Read and write | ||||
| DO2 General Alarm Behaviour | Read and write | ||||
| DO2 Min Alarm Behaviour | Read and write | ||||
| DO2 Max Alarm Behaviour | Read and write | ||||
| DO2 Empty Pipe Behaviour | Read and write | ||||
| DO2 Logic Action State | Read and write | ||||
| DO3 Logic Signal Source | Read and write | ||||
| DO3 General Alarm Behaviour | Read and write | ||||
| DO3 Min Alarm Behaviour | Read and write | ||||
| DO3 Max Alarm Behaviour | Read and write | ||||
| DO3 Empty Pipe Behaviour | Read and write | ||||
| DO3 Logic Action State | Read and write | ||||
| Pulse Mode | Read and write | ||||
| Display Language | Read and write | ||||
| Display Contrast | Read and write | ||||
| Operator Page 1 Mode | Read and write | ||||
| Operator Page 1 Line 1 | Read and write | ||||
| Operator Page 1 Line 2 | Read and write | ||||
| Operator Page 1 Line 3 | Read and write | ||||
| Operator Page 2 Mode | Read and write | ||||
| Operator Page 2 Line 1 | Read and write | ||||
| Operator Page 2 Line 2 | Read and write | ||||
| Operator Page 2 Line 3 | Read and write | ||||
| Operator Page 3 Mode | Read and write | ||||
| Operator Page 3 Line 1 | Read and write | ||||
| Operator Page 3 Line 2 | Read and write | ||||
| Operator Page 3 Line 3 | Read and write | ||||
| Decimal Places Flowrate | Read and write | ||||
| Decimal Places Volume | Read and write | ||||
| Date Format | Read and write | ||||
| Simulation Mode | Read and write | ||||
| Simulation Logic 1 | Read and write | ||||
| Simulation Logic 2 | Read and write | ||||
| Simulation Logic 3 | Read and write | ||||
| Volume Flow Units | Read and write | ||||
| Velocity Unit | Read and write | ||||
| Volume and Pulse Unit | Read and write | ||||
| Modbus Address | Read and write | ||||
| Modbus Baud Rate | Read and write | ||||
| Modbus Parity | Read and write | ||||
| Modbus Stop Bits | Read and write | ||||
| Modbus Word Order | Read and write | ||||
| Sensor Location Tag | Read and write | ||||
| Sensor Tag | Read and write | ||||
| Tx Tag | Read and write | ||||
| Factory Sensor Span | % | Read | |||
| Factory Sensor Zero | Read | ||||
| Trim ST | % | Read | |||
| Excitation Current | mA | Read | |||
| Factory Cutoff | Read | ||||
| Volume Flow Range Lower | Read | ||||
| Volume Flow Range Upper | Read | ||||
| Flow Velocity Range Lower | Read | ||||
| Flow Velocity Range Upper | Read | ||||
| Special Sensor Bore | mm | Read | |||
| Limit Frequency Range Lower | Hz | Read | |||
| Limit Frequency Range Upper | Hz | Read | |||
| Electrode Voltage Negative Limit | V | Read | |||
| Electrode Voltage Positive Limit | V | Read | |||
| Electrode Voltage Differential Limit | V | Read | |||
| Coil Current Alarm Band | % | Read | |||
| Coil Short Circuit Resistance Limit | Ω | Read | |||
| Coil Open Circuit Resistance Limit | Ω | Read | |||
| Simulation Volume Flow Range Lower | Read | ||||
| Simulation Volume Flow Range Upper | Read | ||||
| Simulation Flow Velocity Range Lower | Read | ||||
| Simulation Flow Velocity Range Upper | Read | ||||
| Loop Resistance Range Lower | Ω | Read | |||
| Loop Resistance Range Upper | Ω | Read | |||
| Transmitter Average Gain Shift Range Lower | % | Read | |||
| Transmitter Average Gain Shift Range Upper | % | Read | |||
| Q Max DN | Read | ||||
| Read-Only Switch | Read | ||||
| Sensor Calibration Type | Read | ||||
| Drive Mode | Read | ||||
| Factory Cutoff Averaging Samples | Read | ||||
| Calibration Status | Read | ||||
| Sensor Type | Read | ||||
| Sensor Size | Read | ||||
| Sensor First Cal Location | Read | ||||
| Sensor Last Cal Location | Read | ||||
| Sensor Calibration Mode | Read | ||||
| Electrode Material | Read | ||||
| Lining Material | Read | ||||
| Transmitter Type | Read | ||||
| Hardware Revision | Read | ||||
| MID Status | Read | ||||
| Logic OP1 Simulated History | Read | ||||
| Pulse OP1 Simulated History | Read | ||||
| Logic OP2 Simulated History | Read | ||||
| Pulse OP2 Simulated History | Read | ||||
| Logic OP3 Simulated History | Read | ||||
| Low Flow Alarm History | Read | ||||
| High Flow Alarm History | Read | ||||
| Flow Above 103% Qmax History | Read | ||||
| Flow Simulation Mode History | Read | ||||
| Simulator Calibrator Mode History | Read | ||||
| Display Overrange History | Read | ||||
| Totalizer Reset History | Read | ||||
| Poor Sensor Comms History | Read | ||||
| Tx Memory Fault History | Read | ||||
| No Sensor Detected History | Read | ||||
| Measurement Offline History | Read | ||||
| Empty Pipe History | Read | ||||
| Electrode Open Circuit History | Read | ||||
| Electrode Short Circuit History | Read | ||||
| Installation Fault History | Read | ||||
| Coil Open Circuit History | Read | ||||
| Coil Short Circuit History | Read | ||||
| Coil Loop Resistance History | Read | ||||
| Tx Hardware Fault History | Read | ||||
| Bad Flow Data History | Read | ||||
| Electrode Voltage Warning History | Read | ||||
| OIML Self Check History | Read | ||||
| Measurement Starting History | Read | ||||
| Sensor Not Calibrated History | Read | ||||
| Incompatible Sensor History | Read | ||||
| ROM Error History | Read | ||||
| RAM Error History | Read | ||||
| Alarm Simulation Active History | Read | ||||
| NV Summary Alarm History | Read | ||||
| Logic OP1 Simulated Count | Read | ||||
| Logic OP1 Simulated Time ms | ms | Read | |||
| Logic OP1 Simulated Time Days | d | Read | |||
| Logic OP1 Simulated Total Time ms | ms | Read | |||
| Logic OP1 Simulated Total Time Days | d | Read | |||
| Pulse OP1 Simulated Count | Read | ||||
| Pulse OP1 Simulated Time ms | ms | Read | |||
| Pulse OP1 Simulated Time Days | d | Read | |||
| Pulse OP1 Simulated Total Time ms | ms | Read | |||
| Pulse OP1 Simulated Total Time Days | d | Read | |||
| Logic OP2 Simulated Count | Read | ||||
| Logic OP2 Simulated Time ms | ms | Read | |||
| Logic OP2 Simulated Time Days | d | Read | |||
| Logic OP2 Simulated Total Time ms | ms | Read | |||
| Logic OP2 Simulated Total Time Days | d | Read | |||
| Pulse OP2 Simulated Count | Read | ||||
| Pulse OP2 Simulated Time ms | ms | Read | |||
| Pulse OP2 Simulated Time Days | d | Read | |||
| Pulse OP2 Simulated Total Time ms | ms | Read | |||
| Pulse OP2 Simulated Total Time Days | d | Read | |||
| Logic OP3 Simulated Count | Read | ||||
| Logic OP3 Simulated Time ms | ms | Read | |||
| Logic OP3 Simulated Time Days | d | Read | |||
| Logic OP3 Simulated Total Time ms | ms | Read | |||
| Logic OP3 Simulated Total Time Days | d | Read | |||
| Low Flow Alarm Count | Read | ||||
| Low Flow Alarm Time ms | ms | Read | |||
| Low Flow Alarm Time Days | d | Read | |||
| Low Flow Alarm Total Time ms | ms | Read | |||
| Low Flow Alarm Total Time Days | d | Read | |||
| High Flow Alarm Count | Read | ||||
| High Flow Alarm Time ms | ms | Read | |||
| High Flow Alarm Time Days | d | Read | |||
| High Flow Alarm Total Time ms | ms | Read | |||
| High Flow Alarm Total Time Days | d | Read | |||
| Flow Above 103% Qmax Count | Read | ||||
| Flow Above 103% Qmax Time ms | ms | Read | |||
| Flow Above 103% Qmax Time Days | d | Read | |||
| Flow Above 103% Qmax Total Time ms | ms | Read | |||
| Flow Above 103% Qmax Total Time Days | d | Read | |||
| Flow Simulation Mode Count | Read | ||||
| Flow Simulation Mode Time ms | ms | Read | |||
| Flow Simulation Mode Time Days | d | Read | |||
| Flow Simulation Mode Total Time ms | ms | Read | |||
| Flow Simulation Mode Total Time Days | d | Read | |||
| Simulator Calibrator Mode Count | Read | ||||
| Simulator Calibrator Mode Time ms | ms | Read | |||
| Simulator Calibrator Mode Time Days | d | Read | |||
| Simulator Calibrator Mode Total Time ms | ms | Read | |||
| Simulator Calibrator Mode Total Time Days | d | Read | |||
| Display Overrange Count | Read | ||||
| Display Overrange Time ms | ms | Read | |||
| Display Overrange Time Days | d | Read | |||
| Display Overrange Total Time ms | ms | Read | |||
| Display Overrange Total Time Days | d | Read | |||
| Totalizer Reset Count | Read | ||||
| Totalizer Reset Time ms | ms | Read | |||
| Totalizer Reset Time Days | d | Read | |||
| Totalizer Reset Total Time ms | ms | Read | |||
| Totalizer Reset Total Time Days | d | Read | |||
| Poor Sensor Comms Count | Read | ||||
| Poor Sensor Comms Time ms | ms | Read | |||
| Poor Sensor Comms Time Days | d | Read | |||
| Poor Sensor Comms Total Time ms | ms | Read | |||
| Poor Sensor Comms Total Time Days | d | Read | |||
| Tx Memory Fault Count | Read | ||||
| Tx Memory Fault Time ms | ms | Read | |||
| Tx Memory Fault Time Days | d | Read | |||
| Tx Memory Fault Total Time ms | ms | Read | |||
| Tx Memory Fault Total Time Days | d | Read | |||
| No Sensor Detected Count | Read | ||||
| No Sensor Detected Time ms | ms | Read | |||
| No Sensor Detected Time Days | d | Read | |||
| No Sensor Detected Total Time ms | ms | Read | |||
| No Sensor Detected Total Time Days | d | Read | |||
| Empty Pipe Count | Read | ||||
| Empty Pipe Time ms | ms | Read | |||
| Empty Pipe Time Days | d | Read | |||
| Empty Pipe Total Time ms | ms | Read | |||
| Empty Pipe Total Time Days | d | Read | |||
| Measurement Offline Count | Read | ||||
| Measurement Offline Time ms | ms | Read | |||
| Measurement Offline Time Days | d | Read | |||
| Measurement Offline Total Time ms | ms | Read | |||
| Measurement Offline Total Time Days | d | Read | |||
| NV Summary Alarm Count | Read | ||||
| NV Summary Alarm Time ms | ms | Read | |||
| NV Summary Alarm Time Days | d | Read | |||
| NV Summary Alarm Total Time ms | ms | Read | |||
| NV Summary Alarm Total Time Days | d | Read | |||
| Electrode Open Circuit Count | Read | ||||
| Electrode Open Circuit Time ms | ms | Read | |||
| Electrode Open Circuit Time Days | d | Read | |||
| Electrode Open Circuit Total Time ms | ms | Read | |||
| Electrode Open Circuit Total Time Days | d | Read | |||
| Electrode Short Circuit Count | Read | ||||
| Electrode Short Circuit Time ms | ms | Read | |||
| Electrode Short Circuit Time Days | d | Read | |||
| Electrode Short Circuit Total Time ms | ms | Read | |||
| Electrode Short Circuit Total Time Days | d | Read | |||
| Installation Fault Count | Read | ||||
| Installation Fault Time ms | ms | Read | |||
| Installation Fault Time Days | d | Read | |||
| Installation Fault Total Time ms | ms | Read | |||
| Installation Fault Total Time Days | d | Read | |||
| Coil Open Circuit Count | Read | ||||
| Coil Open Circuit Time ms | ms | Read | |||
| Coil Open Circuit Time Days | d | Read | |||
| Coil Open Circuit Total Time ms | ms | Read | |||
| Coil Open Circuit Total Time Days | d | Read | |||
| Coil Short Circuit Count | Read | ||||
| Coil Short Circuit Time ms | ms | Read | |||
| Coil Short Circuit Time Days | d | Read | |||
| Coil Short Circuit Total Time ms | ms | Read | |||
| Coil Short Circuit Total Time Days | d | Read | |||
| Coil Loop Resistance Count | Read | ||||
| Coil Loop Resistance Time ms | ms | Read | |||
| Coil Loop Resistance Time Days | d | Read | |||
| Coil Loop Resistance Total Time ms | ms | Read | |||
| Coil Loop Resistance Total Time Days | d | Read | |||
| Tx Hardware Fault Count | Read | ||||
| Tx Hardware Fault Time ms | ms | Read | |||
| Tx Hardware Fault Time Days | d | Read | |||
| Tx Hardware Fault Total Time ms | ms | Read | |||
| Tx Hardware Fault Total Time Days | d | Read | |||
| Bad Flow Data Count | Read | ||||
| Bad Flow Data Time ms | ms | Read | |||
| Bad Flow Data Time Days | d | Read | |||
| Bad Flow Data Total Time ms | ms | Read | |||
| Bad Flow Data Total Time Days | d | Read | |||
| Electrode Voltage Warning Count | Read | ||||
| Electrode Voltage Warning Time ms | ms | Read | |||
| Electrode Voltage Warning Time Days | d | Read | |||
| Electrode Voltage Warning Total Time ms | ms | Read | |||
| Electrode Voltage Warning Total Time Days | d | Read | |||
| OIML Self Check Count | Read | ||||
| OIML Self Check Time ms | ms | Read | |||
| OIML Self Check Time Days | d | Read | |||
| OIML Self Check Total Time ms | ms | Read | |||
| OIML Self Check Total Time Days | d | Read | |||
| Measurement Starting Count | Read | ||||
| Measurement Starting Time ms | ms | Read | |||
| Measurement Starting Time Days | d | Read | |||
| Measurement Starting Total Time ms | ms | Read | |||
| Measurement Starting Total Time Days | d | Read | |||
| Sensor Not Calibrated Count | Read | ||||
| Sensor Not Calibrated Time ms | ms | Read | |||
| Sensor Not Calibrated Time Days | d | Read | |||
| Sensor Not Calibrated Total Time ms | ms | Read | |||
| Sensor Not Calibrated Total Time Days | d | Read | |||
| Incompatible Sensor Count | Read | ||||
| Incompatible Sensor Time ms | ms | Read | |||
| Incompatible Sensor Time Days | d | Read | |||
| Incompatible Sensor Total Time ms | ms | Read | |||
| Incompatible Sensor Total Time Days | d | Read | |||
| ROM Error Count | Read | ||||
| ROM Error Time ms | ms | Read | |||
| ROM Error Time Days | d | Read | |||
| ROM Error Total Time ms | ms | Read | |||
| ROM Error Total Time Days | d | Read | |||
| RAM Error Count | Read | ||||
| RAM Error Time ms | ms | Read | |||
| RAM Error Time Days | d | Read | |||
| RAM Error Total Time ms | ms | Read | |||
| RAM Error Total Time Days | d | Read | |||
| Alarm Simulation Active Count | Read | ||||
| Alarm Simulation Active Time ms | ms | Read | |||
| Alarm Simulation Active Time Days | d | Read | |||
| Alarm Simulation Active Total Time ms | ms | Read | |||
| Alarm Simulation Active Total Time Days | d | Read | |||
| Tx PIN | Read | ||||
| Tx ID | Read | ||||
| Sensor ID | Read | ||||
| Manufacturer Name | Read | ||||
| Manufacturer Address 1 | Read | ||||
| Manufacturer Address 2 | Read | ||||
| Manufacturer Contact | Read | ||||
| Sensor SAP/ERP Number | Read | ||||
| Sensor First Cal Date | Read | ||||
| Sensor Last Cal Date | Read | ||||
| Sensor Cal Cert No | Read | ||||
| Sensor Run Hours | Read | ||||
| Transmitter SAP/ERP Number | Read | ||||
| Transmitter Software Version | Read | ||||
| Application CRC | Read | ||||
| Bootloader Version Number | Read | ||||
| Transmitter Hardware Version Number | Read | ||||
| Transmitter Run Hours | Read | ||||
| Transmitter First Cal Date | Read | ||||
| Transmitter Last Cal Date | Read | ||||
| Tx Cal Cert No | Read | ||||
| Term Board SW Version | Read |
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If a device is not in the library yet, we build the template for free as soon as we have the register data.
Use cases
- Show flow and the forward and net totals of each irrigation line on one dashboard.
- Get an alert when the flow rises above its normal level, a sign of a leak or a burst pipe.
- Compare daily water use per line from the totalizer history, which ModbusCloud keeps for 365 days.
- Receive an email or webhook alert when the meter reports empty pipe, a coil fault or another alarm.
- Follow electrode and coil resistance over months to see when a sensor starts to change.
- Reset a totalizer or adjust the flow alarm limits remotely, without walking to the meter.
Installation
Check that the transmitter is the MODBUS variant FEX100-MB (signal type M in the order code). Remove the cartridge to reach the RS485 terminals on the backplane.
Connect B1 (plus line) and A1 (minus line) to the RS485 port of the ModbusCloud Gateway and fix the screen in clamp C. Use A2 and B2 for the cable to the next device. Terminate both ends of the bus.
In the Communication, Modbus menu at Advanced access level, make sure Comms Mode is enabled and check address, baud rate, parity, stop bits and Word Swap (factory 1, 19200, none, 1, disabled).
In ModbusCloud, add a Modbus device (RTU) with the same address and serial settings and import this template.
Compare Volume Flow with the display and read Volume Flow Units and Volume and Pulse Unit, so you can give flow and totals the matching unit in ModbusCloud.
Things to watch for
The meter does not answer. What should I check?
Check the Modbus menu on the display: Comms Mode enabled, factory address 1, 19200 baud, no parity, 1 stop bit. The meter has no bias resistors of its own, so the bus needs biasing at one point and a terminator at both ends. Then check the wiring: B is the plus line, A the minus line. A new address takes effect straight away.
Why do settings read values like 8193 instead of 1?
The transmitter sends one-byte settings with a space character in the upper byte, so every setting reads as 8192 plus its value. The value lists in this template already account for that, so states show as text. For numeric settings such as the Modbus address and display contrast, subtract 8192. Text registers show a space before every character for the same reason.
Which unit do flow and the totals have?
The unit chosen on the transmitter. The factory default is m³/h for flow, m/s for velocity and m³ for the totals, but it is often changed at commissioning. Read Volume Flow Units, Velocity Unit and Volume and Pulse Unit and give the registers the same unit in ModbusCloud. Flow Ratio is always a percentage of Qmax.
Why do flow and totals show random numbers?
Word Swap is probably enabled on the transmitter. This template expects it disabled, the factory setting. Set Word Swap in the Modbus menu to disabled, or write Normal to Modbus Word Order. Flow, totals and the other 32-bit and 64-bit values are then correct straight away.
Can I reset totals or change settings from ModbusCloud?
Yes, once writing is enabled for the gateway; you request that per gateway in the portal. Writing any value to a reset register resets that total or clears the alarm history. On MID-approved meters the resets and several measurement settings are read-only. Units and output settings also change the display and the pulse outputs, so agree changes with whoever uses those signals.
Want to see how it works?
