Rockwell Automation 1769-ASCII Compact Module - Manual (Page 32)

32 Compact 1769-ASCII Module
Publication 1769-IN068B-EN-P - May 2005
Status Indicators
The following table defines the 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 led will blink red
once during powerup.
Blinking green Bus master is detected, configuration
is accepted, and in program mode
Blinking red Module configuration from 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