Here’s some Known Modbus RTU over TCP settings that work to talk to this Laurel device.
Its the only Rate Panel Meter I could find with On Board Ethernet plug/ Modbus TCP comms.
-Change Config of Laurel Device so Serial Protocol is Modbus RTU vs Custom ASCII(factory)
-Set IP address of Meter/ Modbus TCP board.
-Using Ignition Modbus RTU over TCP driver
-Uncheck 1’s addressing for 0 addressing
-Uncheck Span Gaps
Make sure your tag path uses UnitID of device, which is probably default 1.
You have to read two Registers at a time or Read Fails, hence the second “I”
The Modbus TCP board has the IP address but the meter itself is at UnitID address of 1.
I spun my wheels with Meter that it came with Custom ASCII protocol enabled, instead of RTU.