Omron CPM1 Programming Manual

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1-6 CPM1/CPM1A Interrupt Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
1-6-1 Types of Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
1-6-2 Input Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
1-6-3 Masking All Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
1-6-4 Interval Timer Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
1-6-5 High-speed Counter Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
1-7 SRM1 Interrupt Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
1-7-1 Types of Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
1-7-2 Interval Timer Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
1-8 CompoBus/S Distributed I/O Functions (SRM1 Only). . . . . . . . . . . . . . . . . . 88
1-9 Communications Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
1-9-1 CQM1 PC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
1-9-2 Wiring Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
1-9-3 CQM1 Host Link Communications . . . . . . . . . . . . . . . . . . . . . . . . . 93
1-9-4 CPM1/CPM1A Host Link Communications. . . . . . . . . . . . . . . . . . . 95
1-9-5 SRM1 Host Link Communications. . . . . . . . . . . . . . . . . . . . . . . . . . 97
1-9-6 RS-232C Communications (CQM1/SRM1 Only) . . . . . . . . . . . . . . 100
1-9-7 CQM1 One-to-one Link Communications . . . . . . . . . . . . . . . . . . . . 102
1-9-8 CPM1/CPM1A One-to-one Link Communications . . . . . . . . . . . . . 104
1-9-9 CPM1/CPM1A NT Link Communications. . . . . . . . . . . . . . . . . . . . 105
1-9-10 SRM1 One-to-one Link Communications . . . . . . . . . . . . . . . . . . . . 106
1-9-11 SRM1 NT Link Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . 108
1-9-12 SRM1 No Protocol Communications . . . . . . . . . . . . . . . . . . . . . . . . 109
1-9-13 Transmission Data Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
1-9-14 Transmission Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
1-9-15 No Protocol Communications Program Example. . . . . . . . . . . . . . . 112
1-10 Calculating with Signed Binary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
1-10-1 Definition of Signed Binary Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
1-10-2 Arithmetic Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
1-10-3 Inputting Signed Binary Data Using Decimal Values. . . . . . . . . . . . 115
1-10-4 Using Signed-binary Expansion Instructions (CQM1 Only) . . . . . . 115
1-10-5 Application Example Using Signed Binary Data . . . . . . . . . . . . . . . 116

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)