Rockwell Automation 1756-DH485 ControlLogix Data Highway 485 Module Installation Instructions User Manual
Page 18
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18 ControlLogix DH-485 Communications Module
Publication
1756-IN587A-EN-P - September 2005
Set the Network Parameters and Configure the Module
You must use RSLinx software, version 2.43 or later, to set all network
parameters and to configure the 1756DH-485 module.
LED Actions
Channel A or B
Indicator
Channel Status
Recommended Action
Off
Not online.
Place channel online.
Solid Green
Operating.
None, normal operation.
Flashing Green
No other node on the
network.
Check cables.
Solid Red
Hardware fault.
Reboot module. If red reoccurs,
replace module.
Flashing Red
Either:
• Faulted adapters
detected.
• Duplicate node
detected
• Check cables.
Check power at other racks.
• Check node address.
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