Hello, I’m working on implementing Modbus RTU communication with a Carel controller (CPCO). I want to use the front RS485 interface through the DB9 connector. The issue is that I can’t get the communication working correctly. Below are the steps I’ve done so far: Connected pins 3 and 8 from the DB9 connector to the +/- RX/TX terminals on the Carel side. In the PLC shell, I set serialmode to RS485. In WBM under Administration > Serial Interface > Assign owner of serial interface, I set the port to...
Hello, I’m working on implementing Modbus RTU communication with a Carel controller (CPCO). I want to use the front RS485 interface through the DB9 connector. The issue is that I can’t get the communication working correctly. Below are the steps I’ve done so far: Connected pins 3 and 8 from the DB9 connector to the +/- RX/TX terminals on the Carel side. In the PLC shell, I set serialmode to RS485. In WBM under Administration > Serial Interface > Assign owner of serial interface, I set the port to...
Hi! I'm struggling with a problem of stucking Modbus communication for some undefined reasons. After it occurs, the Modbus client cannot read any data, all requested data appears with errors. The only way to fix it is to proceed warm reset of PLC via the user interface of e!Cockpit and then run a program. I was trying to find all available ways to reset the device from the code, but all solutions did not work. Here is a list of what I tried and did not work: Method WagoSysKbusServices.FbKbusParameterService.Reboot()...