Apply chassis power, Alphanumeric display – Rockwell Automation 1747-SCNR SLC ControlNet Scanner Module Installation Instructions User Manual
Page 13

SLC ControlNet Scanner Module 13
Publication 1747-IN059C-EN-P - September 2001
Apply Chassis Power
When you apply chassis power, the module address and status
display cycles through the following displays:
1. POST - The 1747-SCNR runs Power On Self Test.
2. 1111, 2222, etc. - The 1747-SCNR is executing its startup
sequence.
3. The 1747-SCNR firmware version is displayed temporarily after
startup.
4. A#nn (where nn = ControlNet node address) then I/O or
I/OX (based on the number of connections configured and
established) then IDLE or RUN (based on the scanner mode).
Alphanumeric Display
The four character alphanumeric display provides you with
additional visual information about the current operating status of
the module.
The following tables describes problems that may occur while using
your 1747-SCNR, the probable causes, and the recommended action.
Node Address and
Status Display
30750-M