25
Contents
5
Troubleshooting
Several hardware diagnostics capabilities have been
implemented using the LED indicator lights on the front of the
1560-MBP card.
5.1
LED Locations
The location of the LEDs on the units are shown in the following
diagrams:
LED Locations
5.1.1 LED Troubleshooting Table
The following table details the meaning of the LEDs in the 1560-
MBP unit.
Chapter 5 — Troubleshooting
L
N
G
Modbus Plus Port Status
SCANport Status
NAME
Color
Status
Indication
Modbus Plus Green Six flashes
The 1560-MBP is working normally in
that it is successfully receiving and
passing the token. All nodes on the link
should be flashing this pattern.
This node is off-line after just being
powered up, or after exiting the four
flashes per second mode. In this state,
the node monitors the network and
builds a table of active nodes and
token-holding nodes. It remains in this
state for five seconds, then attempts to
go to its normal operating state.
One Flash
per second
per second
Port Status
