How do I monitor and diagnose the state of the Unity Momentum CPU communications ?

Issue:

Unity Momentum communication diagnostic LED

Product Line:

Unity Momentum

Resolution:

The LED panel on the 171 CBU 78090 (M1), page 12 processor includes the
following LEDs you can use to diagnose the state of communication over the 2
serial ports:
• MB1 CH0 (yellow)
• MB2 CH1 (yellow)

The LED panel on the 171 CBU 98090 (M1E) and 171 CBU 98091 (M1E-GD)
processors, page 15 includes the following LEDs you can use to diagnose the
state of communication over the serial and Ethernet ports:
• MB1 CH0 (yellow)
• ETH STS (green)
• ETH LNK/ACT (green)
• ETH 100 (green)

The state of each of these LEDs describes the communication status for each
processor, as follows:

Released for: Schneider Electric Macedonia