User manual

Publication CNET-UM001C-EN-P - November 2005
Troubleshoot Your ControlNet Communication Modules 8-23
1797-ACNR15 ControlNet
FLEX Ex Redundant Media
I/O Adapter
This figure shows the status indicators used on the 1797-ACNR module.
Figure 8.7 1797-ACNR15 Status Indicators
The modules use the following 2 status indicators:
• Comm - Communication status indicator for each channel
• Status - Module status indicator
This table describes the 1797-ACNR15 communication status indicators.
Table 8.12 1797-ACNR15 Communication Status Indicators
41412
Module Status
Network Channel Status
Power
If Both Channel
Status Indicators Are
It Means Take This Action
Off Channel disabled Program network for redundant media, if necessary.
Steady green Normal operation None
Flashing green/off Temporary network errors 1. Check media for broken cables, loose connectors,
missing terminators.
2. If condition persists, refer to the ControlNet Coax
Media Planning and Installation Manual, publication
CNET-IN002.
Node is not configured to go online Make sure the network keeper is present and working and
the selected address is less or equal to the UMAX
(1)
.
Flashing red/off Media fault 1. Check media for broken cables, loose connectors,
missing terminators.
2. If condition persists, refer to the ControlNet Coax
Media Planning and Installation Manual, publication
CNET-IN002.
No other nodes present on network Add other nodes to the network.
Flashing red/green Incorrect network configuration Reconfigure the ControlNet network so that UMAX is greater
than or equal to the module’s node address.