Leds On the Back of the Profibus Card
The following table explains what indicator LED displayed on the back of the Profibus card represents.
BOTTOM | TOP | PROBLEM |
OFF | RED | Node is not connected. |
RED | RED | Wires are crossed on the network. |
RED | Blinking GM/Red | Terminating Resistor not set on I/O side. |
GREEN | RED | Terminating resistor on PowerStation side needs to be turned on. |
GREEN | GREEN | Working properly. |