Omron CPM1 Programming Manual

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Application Precautions 5
• Leave the label attached to the Unit when wiring. Removing the label may
result in malfunction.
• Remove the label after the completion of wiring to ensure proper heat dis-
sipation. Leaving the label attached may result in malfunction.
• Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals. Connection of bare stranded wires may result in
burning.
• Double-check all the wiring before turning ON the power supply. Incorrect
wiring may result in burning.
• Mount the Unit only after checking the terminal block completely.
• Be sure that the terminal blocks, Memory Units, expansion cables, and
other items with locking devices are properly locked into place. Improper
locking may result in malfunction.
• Check the user program for proper execution before actually running it on
the Unit. Not checking the program may result in an unexpected opera-
tion.
• Confirm that no adverse effect will occur in the system before attempting
any of the following. Not doing so may result in an unexpected operation.
• Changing the operating mode of the PC.
• Force-setting/force-resetting any bit in memory.
• Changing the present value of any word or any set value in memory.
• Resume operation only after transferring to the new CPU Unit the con-
tents of the DM and HR Areas required for resuming operation. Not doing
so may result in an unexpected operation.
• Do not place objects on top of the cables. Doing so may break the cables.
• Before touching the Unit, be sure to first touch a grounded metallic object
in order to discharge any static built-up. Not doing so may result in mal-
function or damage.
• Do not touch the Expansion I/O Unit Connecting Cable while the power is
being supplied in order to prevent any malfunction due to static electricity.
• When replacing parts, be sure to confirm that the rating of a new part is
correct. Not doing so may result in malfunction or burning.
!Caution Always clear memory before beginning to program the CPM1, CPM1A or
SRM1. Although memory is cleared before the CPU Unit is shipped (except
for bits with specific functions), AR 1314, which turns ON when the internal
capacitor cannot back up memory, may have turned ON during shipment.
!Caution If the CPM1 or CPM1A will be turned OFF for periods exceeding the data
backup period of the internal capacitor, design the system so that it will not be
influenced if data in the DM, HR, and CNT areas is cleared when power is
turned OFF.
!Caution Either switch the CPM1 or CPM1A to RUN or MONITOR mode, or turn OFF
and ON power to the CPM1 or CPM1A after changing from a Programming
Device any data that is backed up in flash memory. This data includes the
user program, read-only DM area (DM 6144 to DM 6599), and the PC Setup
(DM 6600 to DM 6655).

Omron CPM1 Specifications

General

Model	CPM1
Manufacturer	Omron
Instruction Set	Basic and advanced instructions
Power Supply	100 to 240 VAC or 24 VDC
Communication	RS-232C
I/O Points	10, 20, 30, or 40 points depending on the model
Timers	Yes, multiple timers available
Counters	Yes, multiple counters available
Input Voltage	24V DC
Output Type	Relay or transistor
Number of I/O Points	10, 20, 30, 40
Communication Ports	RS-232C (optional)
Operating Temperature	0°C to 55°C
Storage Temperature	-20°C
Humidity	10% to 90% (non-condensing)
Dimensions	Varies depending on the model
Weight	Varies depending on the model
Program Memory	2048 steps (2K steps)