Omron CPM2C User Manual

15
Structure and Operation Section 1-3
1-3-2 Operating Modes
CPM2C CPU Units have 3 operating modes: PROGRAM, MONITOR, and
RUN.
PROGRAM Mode The program cannot be executed in PROGRAM mode. This mode is used to
perform the following operations in preparation for program execution.
• Changing initial/operating parameters such as those in the PC Setup
• Writing, transferring, or checking the program
• Checking wiring by force-setting and force-resetting I/O bits
!Caution The PC continues to refresh I/O bits even if the PC is in PROGRAM mode, so
devices connected to output points on the CPU Unit, Expansion Units, or
Expansion I/O Units may operate unexpectedly if the corresponding output bit
is turned ON by changing the contents of I/O memory.
MONITOR Mode The program is executed in MONITOR mode and the following operations can
be performed from a Programming Device. In general, MONITOR mode is
used to debug the program, test operation, and make adjustments.
• Online editing
• Monitoring I/O memory during operation
• Force-setting/force-resetting I/O bits, changing set values, and changing
present values during operation
RUN Mode The program is executed at normal speed in RUN mode. Operations such as
online editing, force-setting/force-resetting I/O bits, and changing set values/
present values cannot be performed in RUN mode, but the status of I/O bits
can be monitored.
1-3-3 Operating Mode at Startup
The operating mode of the CPM2C when the power is turned ON depends
upon the PC Setup settings and the Programming Console’s mode switch set-
ting if a Programming Console is connected.
Note 1. The default setting for DM 6600, bits 06 to 15 is 00 Hex, i.e., to start with
the mode set on the Programming Console’s mode switch. If a Program-
ming Device is not connected to the peripheral connector on the CPU Unit,
the CPU Unit will start in RUN mode as soon as power is turned ON. Be
sure that adequate precautions are taken to ensure safety.
PC Setup setting Operating mode
Word Bits Setting Programming Device
connected
Programming Device not
connected
DM 6600 08 to 15 00 (Hex) Programming Console:
Mode set on Programming
Console mode switch
Other Programming Device:
PROGRAM mode
RUN mode
01 (Hex) Startup mode is the same as the operating mode before
power was interrupted.
02 (Hex) Startup mode is determined by bits 00 to 07.
00 to 07 00 (Hex) PROGRAM mode
01 (Hex) MONITOR mode
02 (Hex) RUN mode

Omron CPM2C Specifications

General

Brand	Omron
Model	CPM2C
Category	Controller
Language	English