Allen-Bradley ControlLogix System 1756-L1 User Manual page 344

20-28 Communicate Over a Remote I/O Network
Validate Connections
Step:
A. Determine if communications are
established.
B. Identify a fault. Start at the local
communication module and work
down through the tree.
C. Identify the fault code.
Publication 1756-UM001E-EN-P - August 2002
Is this task, you verify that the controller can communicate with the
devices that you have just configured.
Detailed actions:
Is a over the I/O Configuration folder?
!
If: Then:
No The controller can communicate with the module.
Yes Communications are not established. Go to the next step.
−
I/O Configuration
!
−
1.
2.
3.
1. Right-click the module and select Properties.
2. Click the Connection tab.
3.
3. Identify the code for the fault.
[x] 1756-YYY/x local_com_module
!
−
z 17xx-YYY adapter_1
!
[0] 17xx-YYY module_1
!
[1] 17xx-YYY module_2
!
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