flinana
Electrical
- May 21, 2003
- 129
Hi,
We have the following setup.
LAN A SCADA with S7 400H and LAN B with the same equipment.
One switch in LANA is connected to a switch in LAN B, this LANB has a FW connected to the switch via two cables.
When i proceeded to connect a third cable betwenn the FW and the switch, the PLCs in LAN A when to stop mode. I honestly cannot understand how this can happen but i would greatly appreciate if anyone can shed a light into this problem.
I have a netwrok diagram and PLC diagnostic if anone needs it to have it clear.
Thanks,
We have the following setup.
LAN A SCADA with S7 400H and LAN B with the same equipment.
One switch in LANA is connected to a switch in LAN B, this LANB has a FW connected to the switch via two cables.
When i proceeded to connect a third cable betwenn the FW and the switch, the PLCs in LAN A when to stop mode. I honestly cannot understand how this can happen but i would greatly appreciate if anyone can shed a light into this problem.
I have a netwrok diagram and PLC diagnostic if anone needs it to have it clear.
Thanks,