Hi All,
Currently I am networking several PLCs together (SLC5/04, SLC5/05, ML1500) and used RSView32 to create real time visual manufacturing and monitor the inputs of each PLCs. The communication protocol I used here is Ethernet. Therefore, I had 1761-NET-ENI for SLC5/04 and ML1500 to communicate via Ethernet. I had created DDE/OPC topic for each PLC in RsLinx. So, I was able to monitor the PLCs I/O address in RSView32.
However, I am trying to write a value to a tag, but i was unable to do it. I use both toggle and set command in RSView32, and I can see RSLinx is sending packets to the specific PLC. But the PLC input didn't have any response.
Does anyone encounter any of this problem before?
Thanks
Regards,
Herbert
Currently I am networking several PLCs together (SLC5/04, SLC5/05, ML1500) and used RSView32 to create real time visual manufacturing and monitor the inputs of each PLCs. The communication protocol I used here is Ethernet. Therefore, I had 1761-NET-ENI for SLC5/04 and ML1500 to communicate via Ethernet. I had created DDE/OPC topic for each PLC in RsLinx. So, I was able to monitor the PLCs I/O address in RSView32.
However, I am trying to write a value to a tag, but i was unable to do it. I use both toggle and set command in RSView32, and I can see RSLinx is sending packets to the specific PLC. But the PLC input didn't have any response.
Does anyone encounter any of this problem before?
Thanks
Regards,
Herbert