I have a line with a network of 10 Siemens S7-1500. Everything is running and I appear to have no issues. I am running TIA V14 SP1 on a Siemens PG computer.
Now I can't go online with one of the PLC's. to monitor. I connect to the line from a switch at my work station.
It says it is "not reachable". However, I can connect at my work station and get online with any of the other PLC's in the network. The PLC itself shows only a "Maintenance demanded" but that appears in some of the other PLC's as well. The Ethernet switch out of this particular panel appears ok. All the drives in the cabinet seem to be communicating OK.
What is going on? Any help is appreciated.
Now I can't go online with one of the PLC's. to monitor. I connect to the line from a switch at my work station.
It says it is "not reachable". However, I can connect at my work station and get online with any of the other PLC's in the network. The PLC itself shows only a "Maintenance demanded" but that appears in some of the other PLC's as well. The Ethernet switch out of this particular panel appears ok. All the drives in the cabinet seem to be communicating OK.
What is going on? Any help is appreciated.