RoRo
Member
Hi,
Im programming a S7-300 with a CP341 module for serial communication. I got the communication of the modules working. I can send and receive data using the P_SND and P_RCV. When I connect the PLC to the PC and use putty to send and receive data to and from the plc there is no problem.
When I connect the PLC to an E5CK from Omron I got problems. When I turn-off the plc, Im not able to get the serial connection working again.
The PLC is trying to send data but the E5ck doesnt seem to receive any data.
When I change the parameters of the module and download these to the PLC, the connection works again, until I shutdown the PLC. But this only works when I change some parameters. Simply downloading the system data is not enough.
Somebody knows what the problem is Im having?
Im programming a S7-300 with a CP341 module for serial communication. I got the communication of the modules working. I can send and receive data using the P_SND and P_RCV. When I connect the PLC to the PC and use putty to send and receive data to and from the plc there is no problem.
When I connect the PLC to an E5CK from Omron I got problems. When I turn-off the plc, Im not able to get the serial connection working again.
The PLC is trying to send data but the E5ck doesnt seem to receive any data.
When I change the parameters of the module and download these to the PLC, the connection works again, until I shutdown the PLC. But this only works when I change some parameters. Simply downloading the system data is not enough.
Somebody knows what the problem is Im having?
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