Status Indicators - Rockwell Automation Allen-Bradley 1769-ASCII User Manual

Status Indicators

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