Rockwell Automation 1203-SM1 SLC to SCANport Communication Module - Manual (Page 53)

Chapter
5
Publication 1203–5.9 –– October 1996
Troubleshooting
Chapter 5 provides information about the LED states.
The following table provides information about the LED states.
LED State Description Suggested action
Off No module power The rack is not receiving power.
Check the power supply
connections to the rack.
Solid
Red Channel connection
or power problem
The SCANport connection is not
operational, or the SCANport
device is not powered
1 Check to make sure that power is
applied to the SCANport device.
2 Check the cable connections.
3 Change the SCANport cable.
4 Try using another channel.
5 Replace either the SLC to
SCANport module or the
SCANport device.
Flashing
Red
Channel
communication
problem The module cannot maintain or
establish communications with the
SCANport device.
1 Verify the configuration.
2 Remove the SCANport cable.
3 Re–insert the SCANport cable
into the channel to reset the
condition.
Solid
Green
Channel operational
I/O signals are being passed
between the module and the
SCANport device.
None
Flashing
Green Channel not enabled
for I/O operations
The enable bit for the channel has
not been set. Only messaging
operations are functional. Program the controller to set the
data enable bit for the appropriate
channel for I/O operation.
Solid
Orange Connected device
problem
SCANport device incompatibility. Consult the factory.
Chapter Objectives
LED States