Rockwell Automation 1769-ASCII Compact I/O ASCII Module - Manual (Page 95)

Rockwell Automation Publication 1769-UM012B-EN-P - January 2014 95
Appendix
B
Status Indicators
The following table defines the 1769-ASCII module status indicators.
Status Indicator State Meaning
OK Off No power, module is not configured, or no bus master
Solid green In run mode. The status indicator blinks red once during powerup
Blinking green Bus master is detected, configuration is accepted, and in program mode
Blinking red Module configuration from the bus master was not valid
Tx0, Tx1 Blinking green Transmitting data on that serial port
Rx0, Rx1 Blinking green Receiving data on that serial port
OK
TX0
TX1
RX0
RX1
ASCII
INTERF
A
C
E