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Omron CPM1A User Manual

Omron CPM1A
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!
7
The following diagram shows the program execution when an interrupt occurs.
Main program
Input interrupt
Interrupt program
MOV
ADD
END
SBN00
MOV
RET
PC model Input bits Response time
CPM1A-10CDR-(-V1)/
10CDT-D(-V1)/10CDT1-D(-V1)
IR 00003 to IR 00004
0.3 ms
(1 kHz in Counter Mode)
CPM1A-20CDR-(-V1)/
20CDT-D(-V1)/20CDT1-D(-V1)/
30CDR-(-V1)/30CDT-D(-V1)/
30CDT1-D(-V1)/40CDR-(-V1)/
40CDT-D(-V1)/40CDT1-D(-V1)
IR 00003 to IR 00006
()
Note When not using as interrupt input terminals, the input bits IR 00003 to IR 00006
can be used as normal input terminals.
Caution Although IORF(97) can be used in interrupt subroutines, you must be careful of
the interval between IORF(97) executions. If IORF(97) is executed too frequent-
ly, a fatal system error may occur (FALS 9F), stopping operation. The interval
between executions of IORF(97) should be at least 1.3 ms + total execution time
of the interrupt subroutine.
CPM1A Features and Functions Section 1-1

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Omron CPM1A Specifications

General IconGeneral
ModelCPM1A
TypeCompact PLC
Communication PortsRS-232C (optional)
Instruction SetBasic and advanced instructions
Operating Temperature0 to 55°C
Storage Temperature-20 to 75°C
Humidity10% to 90% RH (non-condensing)
Power Supply24 VDC or 100-240 VAC
ExpansionExpansion I/O units available
Timers128
Counters256 counters
I/O Points10, 20, 30, or 40 points (depending on model)

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