Rockwell Automation 1771-KA2 Communication Adapter Module - Manual (Page 108)

Start–up and Troubleshooting
Chapter 9
9-6
Note that this status indication is provided in both RUN and TEST modes.
In the PROGRAM LOAD (or PROG) mode, however, intensity of a
displayed instruction indicates cursor position.
Figure 9.2 illustrates the significance of an intensified instruction for both
the industrial terminal and the PLC program panel.
Figure 9.2
Meaning of Intensified CRT Display
RUN
TEST
PROG
RUN
TEST
PROG
Intensified insturction indicates
cursor. Editing/changes to be made
at this point in the rung.
For (A)
For (B)
A. Cursor Note: In run or test modes,
blinking indicates
cursor position.
B. Normal
Normal intensity indicates
specified condition false
Intensified instruction indicates
specified condition true.
The PLC-2 program panel, meanwhile, has a different type of status
indicator. On this terminal, an LED indicator is labeled STATUS. When
the displayed instruction is logically TRUE, this STATUS indicator
illuminates.
Again, this STATUS indicator is provided in both RUN and TEST modes.
The status indication is useful in monitoring the ON/OFF status of
START/DONE and REMOTE/LOCAL FAULT bits.