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4-2-4 Changing the CPM1’s Mode
Once the Programming Console has been connected, its mode switch can be
used to change the CPM1’s PC mode. The mode display (<PROGRAM>,
<MONITOR>, or <RUN>) will appear on the Programming Console screen.
• No key operations can be performed while the mode display is displayed on
the Programming Console screen. Press CLR to clear the display so that key
operations can be performed.
• If the SHIFT Key is pressed while the mode switch is turned, the original dis-
play will remain on the Programming Console’s screen and the mode display
won’t appear.
• The CPM1 will enter RUN mode automatically if a Peripheral Device such as a
Programming Console isn’t connected when the CPM1 is turned on.
Mode display
Initial display
<PROGRAM> BZ
CLR SHIFT CLR
00000
RUN
MONITOR
PROGRAM RUN
MONITOR
PROGRAMRUN
MONITOR
PROGRAM
<MONITOR> BZ <RUN> BZ
Operation Operation
PROGRAM Mode The CPM1 program isn’t executed in PROGRAM mode. Use PROGRAM mode
to create and edit the program, clear memory, or check the program for errors.
MONITOR Mode The CPM1 program is executed in MONITOR mode and I/O is processed just as
it is in RUN mode. Use MONITOR mode when testing the system by monitoring
the CPM1’s operating status, force-setting and resetting I/O bits, changing the
SV/PV of timers and counters, etc.
RUN Mode This is the CPM1’s normal operating mode. The CPM1’s operating status can be
monitored from a Peripheral Device, but bits can’t be force-set/force-reset and
the SV/PV of timers and counters can’t be changed.
Caution Be sure to confirm that no adverse effect will occur with the equipment before
changing the operating mode of the PC.
Using a Programming Console
Section 4-2
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