I am chandru from Singapore and have been working for Omron PLC programming for 10 years.
I have been recently trying to establish communication between Omron CS PLC and SICK ATR portal by RS422, full duplex , ASCII communication (max 50 bytes send & receive) . The communications are up , but the following problems are faced and i need your kind assistance;
1. How to use 2 or more PMCR instruction in the program
2. How to configure the SCU -31 unit to notify to CPU whenever receive the message from the host
3. How to avoid clash between send and Receive messages by using more than one PMCR
4. How the CPU unit knows when there is a message received by the SCU