Hello all,
I got a call yesterday from a worker at a factory where i installed an automation sistem with a PLC M340, operated via SCADA Vijeo Citect. He told me that everithing was saying "#BAD" instead of the usual. Next i spoke with a sistems operator at the factory and checked the following steps:
1_ No hardware errors on PLC
2_ All Ethernet cables + switches are not damaged, properly connected (the communication between PC and PLC is via Ethernet, using the OPC driver)
3_ Reset PLC, PC (scada), switch.
4_ Ping between PC and PLC (worked), according to UnityPro status comunication is OK
5_ Just in case, we programmed the PLC with a backup program (the exact version it had installed previously)
6_ Exported the DB and FB variables from unitypro to *.XVM file and checked that the OPC driver was set-up correctly.
I'm running out of ideas, the problem persist, and everithing looks properly configured, no idea why it suddenly stopped working (its been running for almos a year now, with no problems at all)
Any thoughts on how can i find the source of the problem? (you cant fix something before you find out what it is you have to fix)
Thank you all, i await your reply
I got a call yesterday from a worker at a factory where i installed an automation sistem with a PLC M340, operated via SCADA Vijeo Citect. He told me that everithing was saying "#BAD" instead of the usual. Next i spoke with a sistems operator at the factory and checked the following steps:
1_ No hardware errors on PLC
2_ All Ethernet cables + switches are not damaged, properly connected (the communication between PC and PLC is via Ethernet, using the OPC driver)
3_ Reset PLC, PC (scada), switch.
4_ Ping between PC and PLC (worked), according to UnityPro status comunication is OK
5_ Just in case, we programmed the PLC with a backup program (the exact version it had installed previously)
6_ Exported the DB and FB variables from unitypro to *.XVM file and checked that the OPC driver was set-up correctly.
I'm running out of ideas, the problem persist, and everithing looks properly configured, no idea why it suddenly stopped working (its been running for almos a year now, with no problems at all)
Any thoughts on how can i find the source of the problem? (you cant fix something before you find out what it is you have to fix)
Thank you all, i await your reply