Allen-Bradley DeviceNet 1756-DNB - Troubleshooting

Rockwell Automation Publication DNET-IN001B-EN-P - January 2012 45
Appendix A
1756 DeviceNet Status Indicators and Data
Structures
1756-DNB DeviceNet
Scanner Status Indicators
The 1756-DNB scanner has three status indicators that provide information
about your network and its connections.
Topic Page
1756-DNB DeviceNet Scanner Status Indicators 45
1756-DNB DeviceNet Scanner Alphanumeric Display 47
1756-DNB DeviceNet Scanner Data Structures 51
Status Indicator Description
Module/Network (MOD/NET) Status A bicolor (green/red) status indicator that provides device
and communication status.
I/O Status A bicolor (green/red) status indicator that provides the
status of inputs and outputs, including the following:
• Whether the device has outputs under its control
• Whether any outputs or inputs are active or faulted
• Mod/state of the inputs and outputs, but not
necessarily the On/Off condition of the I/O points
OK Status A bicolor (green/red) status indicator that reflects
whether the device has power and is operating properly.
DeviceNet TM
MOD/NET I/O OK
Module/Network
Status Indicator
I/O Status Indicator
OK Status Indicator