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About Dimitar026

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    Hi, I am New!

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  • Country Macedonia
  1. Hi, I have a project including 32 digital outputs, 8 Pt100 probes, 4 thermocouples, and 4 analog inputs so I have to choose an OMRON PLC. The supplier in my country has only CP2E and CP1E PLCs. Is there a way to connect more than three expansion modules to the PLC? On the website is stated that the maximum number of expansion units is 3, if the answer is no, is there a solution to this problem? Thank you
  2. CP1E to Q2V over ModBus

    Finally I switched to Remote control on the VFD side, now I am getting CE Alarm which stands for Modbus Communication Error. Response time is set to 10ms on each side, communication parameters are also changed to be equal on both sides. (9600, 8, 1, E) On the PLC side D1352 is 80hex = Response timeout. On the VFD side U1-19 Data length error = error and Timeout = Error.
  3. CP1E to Q2V over ModBus

    Hi,  I am new to Omron, but I have quite experience with other PLCs and VFDs. I am trying to connect the CP1E-N30S PLC unit to Q2V-4007-AAA VFD over Modbus. VFD is controlling three phase asyn motor. The A- from the RS485 port from the PLC is connected to the RS485- of the VFD, B+ from the PLC to RS485+ of the VFD. Found a ladder for start and stop of the motor which seems fine and load to the PLC (change the slave address to the VFD address). Change the parameters of the VFD for controlling over Modbus and turn on all the components.  When pressing the Lo/Re button on the VFD, on the 7-segment screen flashes CALL for once, which is error for bad Serial Communication. On the PLC side the A641 execution bit is &4 which means Modbus-RTU Master Execution Error Flag. Is there someone who can help me to establish communication, thanks in advance.