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8.5
Unable to Communicate with I/O Module
In the ToolboxST application,
Component Editor
,
Hardware
tab, a red
X
symbol on an I/O module indicates that the
controller is unable to communicate with that I/O module. If multiple modules have red
X
symbols, the problem may be with
the IONet switch or the I/O module power supply.
➢
➢
To view I/O communication failures between an I/O pack and the controller diagnostic
1.
From the ToolboxST application, open the Mark VIe control .tcw file.
2.
From the
Component Editor
, select the Hardware tab and right-click on the I/O pack with a red
X
.
3.
Select
View Diagnostics
.
Note
In TMR I/O modules, the diagnostic displays for the faulty module only.
I/O Pack Communication Troubleshooting
Condition
Potential Problem
Other I/O packs on same IONet switch still communicating
I/O pack power
Ethernet cable from I/O pack
Incomplete downloads to pack or controller
Improper ToolboxST configuration
Bad IONet switch port
I/O pack failure
No other I/O packs on same IONet switch are communicating
Switch power
Switch communication
Improper switch configuration
Switch failure
Troubleshooting
GEH-6721_Vol_I_BP System Guide 185
Public Information