1769-L32E, 1769-L35E CompactLogix Controller
33
Publication
1769-IN020-C-EN-P - July 2007
RS-232 Serial Port Status Indicators (Channel 0 and 1)
CompactFlash Card Status Indicator
Indicator
Status
Description
DCH0
Off
Channel 0 is configured differently than the default serial
configuration.
Solid green
Channel 0 has the default serial configuration.
CH0
Off
No RS-232 activity.
Flashing green
RS-232 activity.
CH1
Off
No RS-232 activity.
Flashing green
RS-232 activity.
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.
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.
