sampsondavidj
Member
Hi,
I'm working with a Citect OPC DA server and an Allen Bradley ControlLogix L71 PLC. I have set up my boards, ports, and I/O device. When I test communications with an OPC Client, I can't seem to do a sync read. But I have confirmed with Studio 5000 that I can do a sync write successfully. I do get an error code of 0x80004005 which I believe is an unspecified error. I have redundant servers, but the result is the same on both of them.
All firewalls are disabled. I also have a CompactLogix that works perfectly. I'm running out of ideas to diagnose the issue. Does anyone have any questions or suggestions? I have full administrative access to all of the network switches between the two devices and I can ping the PLC from the server.
Thanks,
David
I'm working with a Citect OPC DA server and an Allen Bradley ControlLogix L71 PLC. I have set up my boards, ports, and I/O device. When I test communications with an OPC Client, I can't seem to do a sync read. But I have confirmed with Studio 5000 that I can do a sync write successfully. I do get an error code of 0x80004005 which I believe is an unspecified error. I have redundant servers, but the result is the same on both of them.
All firewalls are disabled. I also have a CompactLogix that works perfectly. I'm running out of ideas to diagnose the issue. Does anyone have any questions or suggestions? I have full administrative access to all of the network switches between the two devices and I can ping the PLC from the server.
Thanks,
David