Omron CPM1 Programming Manual

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SECTION 1
PC Setup and Other Features
This section explains the PC Setup and other CQM1/CPM1/CPM1A/SRM1 features, including interrupt processing and
communications. The PC Setup can be used to control the operating parameters of the CQM1/CPM1/CPM1A/SRM1. To
change the PC Setup, refer to the CQM1 Operation Manual, CPM1 Operation Manual, CPM1A Operation Manual or
SRM1 Master Control Units Operation Manual for Programming Console procedures. Refer to the SSS Operation Manual:
C-series PCs for SSS procedures.
If you are not familiar with OMRON PCs or ladder diagram program, you can read 1-5 PC Setup as an overview of the
operating parameters available for the CQM1/CPM1/CPM1A/SRM1, but may then want to read SECTION 3 Memory
Areas, SECTION 4 Ladder-diagram Programming, and related instructions in Section SECTION 5 Instruction Set before
completing this section.
1-1 PC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-1-1 Changing the PC Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-1-2 CQM1 PC Setup Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-1-3 CPM1/CPM1A PC Setup Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-1-4 SRM1 PC Setup Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1-2 Basic PC Operation and I/O Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1-2-1 Startup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1-2-2 Hold Bit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1-2-3 Program Memory Write-protection (CPM1/CPM1A Only). . . . . . . 17
1-2-4 RS-232C Port Servicing Time (CQM1/SRM1 Only). . . . . . . . . . . . 18
1-2-5 Peripheral Port Servicing Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1-2-6 Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1-2-7 Input Time Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1-2-8 High-speed Timers (CQM1 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1-2-9 DSW(87) Input Digits & Output Refresh Method (CQM1 Only) . . 21
1-2-10 Error Log Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1-3 Pulse Output Function (CQM1 Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1-3-1 Types of Pulse Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1-3-2 Standard Pulse Output from an Output Point . . . . . . . . . . . . . . . . . . 23
1-3-3 Standard Pulse Output from Ports 1 and 2 . . . . . . . . . . . . . . . . . . . . 25
1-3-4 Variable-duty-ratio Pulse Output from Ports 1 and 2 . . . . . . . . . . . . 32
1-3-5 Determining the Status of Ports 1 and 2. . . . . . . . . . . . . . . . . . . . . . 34
1-4 Pulse Output Function (CPM1A Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
1-4-1 Programming Example in Continuous Mode. . . . . . . . . . . . . . . . . . 36
1-4-2 Programming Example in Independent Mode . . . . . . . . . . . . . . . . . 36
1-4-3 Using Pulse Output Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
1-4-4 Changing the Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1-4-5 Stopping Pulse Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1-5 CQM1 Interrupt Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
1-5-1 Types of Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
1-5-2 Input Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
1-5-3 Masking All Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
1-5-4 Interval Timer Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
1-5-5 High-speed Counter 0 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
1-5-6 High-speed Counter 0 Overflows/Underflows . . . . . . . . . . . . . . . . . 53
1-5-7 High-speed Counter 1 and 2 Interrupts (CQM1-CPU43-EV1) . . . . 55
1-5-8 Absolute High-speed Counter Interrupts (CQM1-CPU44-EV1) . . . 62

Omron CPM1 Specifications

General

Brand	Omron
Model	CPM1
Category	Controller
Language	English