Omron Changing the CPM1A’s Mode with the Mode Switch, Operating Modes, Program Mode, RUN Mode

Using a Programming Console Section 4-2

4-2-2 Changing the CPM1A’s Mode with the Mode Switch

Once the Programming Console has been connected, its mode switch can be used to change the CPM1A’s operating mode. The mode display (<PRO- GRAM>, <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 CPM1A will enter RUN mode automatically if a Programming Console isn’t connected when the CPM1A is turned on.

MONITOR

RUN PROGRAM

Mode display

MONITOR

RUN PROGRAM

MONITOR

RUN PROGRAM

<PROGRAM> BZ

<MONITOR> BZ <RUN> BZ

Operation CLR

Operation

SHIFT CLR

Initial display

Operating Modes

00000

PROGRAM Mode

The CPM1A 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 CPM1A program is executed in MONITOR mode and I/O is refreshed just as it is in RUN mode. Use MONITOR mode to test system operations, such as monitoring CPM1A operating status, force-setting and resetting I/O bits, chang- ing the SV/PV of timers and counters, changing word data, and online editing.

RUN Mode

This is the CPM1A’s normal operating mode. The CPM1A’s operating status can be monitored from a Programming Device, but bits can’t be force-set/force-reset and the SV/PV of timers and counters can’t be changed.

!Caution Check the system thoroughly before changing the operating mode of the PC to prevent any accidents that might occur when the program is first started.

!Caution Never change the mode while pressing any of the keys.

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