Status Indicators On The Lcd; I/O Status Indicators On The Lcd - Rockwell Automation Allen-Bradley MicroLogix 1400 User Manual

Appendix C Troubleshoot Your System
154

Status Indicators on the LCD

Figure 68 - Status Indicators on the LCD
Status Indicators on the LCD
Indicator Color
Off
(empty rectangle)
COMM 0
On
(solid rectangle)
Off
(empty rectangle)
COMM 1
On
(solid rectangle)
Off
(empty rectangle)
COMM 2
On
(solid rectangle)
Off
(empty rectangle)
(1)
DCOMM
On
(solid rectangle)
Off
(empty rectangle)
BAT. LO
On
(solid rectangle)
Off
(empty rectangle)
U-DISP
On
(solid rectangle)
(1) When using a MicroLogix 1400 controller, the DCOMM LED applies only to Channel 0.

I/O Status Indicators on the LCD

Figure 69 - I/O Status Indicators on the LCD
I/O LED screen on the LCD
Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
Indicates
Not transmitting via RS-232/RS-485 port (Channel 0)
Transmitting via RS-232/RS-485 port (Channel 0)
Not transmitting via Ethernet port (Channel 1)
Transmitting via Ethernet port (Channel 1)
Not transmitting via RS-232 port (Channel 2)
Transmitting via RS-232 port (Channel 2)
Configured communications (Channel 0)
Default communications (Channel 0)
Battery level is acceptable
Battery low
Default display mode
Customized display mode
Input status indicators (20)
Output status indicators (12)