Rockwell Automation 1769-L32C_L35CR CompactLogix Controller Installation Instructions User Manual
Page 40
40 1769-L32C, 1769-L35CR CompactLogix Controller
Publication
1769-IN070C-EN-P - May 2008
RS-232 Serial Port Status Indicators (channel 0)
Indicator
Status
Description
DCH0
Off
Channel 0 is configured differently than the default
serial configuration.
Steady green
Channel 0 has the default serial configuration.
CH0
Off
No RS-232 activity.
Flashing green
RS-232 activity.
CompactFlash Card Status Indicators
Indicator
Status
Description
CF
Off
No activity.
Flashing
green
The controller is reading from or writing to the
CompactFlash card.
Flashing red
CompactFlash card does not have a valid file system.
ATTENTION
Do not remove the CompactFlash card while the controller is reading from or
writing to the card, as indicated by a flashing green CF status indicator. This
could corrupt the data on the card or in the controller, as well as corrupt the
latest firmware in the controller.