Omron CJ2M-CPU Series User Manual

8-57
8 Pulse Outputs
CJ2M CPU Unit Pulse I/O Module User’s Manual
8-7 Reading the Pulse Output Frequency
8
8-7 Reading the Pulse Output Frequency
The frequency of a pulse output can be read in the following two ways.
• Reading the value at any time during program execution: Read by executing the PRV(881) instruc-
tion.
• Reading the value for each trace sampling cycle: Specify tracing the pulse frequency in the I/O Mod-
ule AR Select Area on the Data Trace Configuration Tab Page of the CX-Programmer
z HIGH-SPEED COUNTER PV READ (PRV(881)) Instruction
z Specifying Pulse Frequency for Tracing with the Data Trace Function in the
Easy Setup of the CX-Programmer
Select the pulse frequencies to be traced (pulse output n, where n = 0 to 3, in 1-Hz increments) in
the I/O Module AR Select Area on the Data Trace Configuration Tab Page of the CX-Programmer.
The frequency of the specified pulse output will be traced every trace sampling cycle.
Reading the Value When a Ladder Program Is Executed
Reading the Pulse Output Frequency in Each Trace Sampling Cycle
P: Port specifier, Example: Pulse output 0
C: Control data (Read pulse output 0 frequency using the normal method)
@PRV
#0000
#0003
D101
PV (lower word)
Pulse output 0 frequency that was read
D100
PV (upper word)
D100
D: First destination word
Execution condition

Omron CJ2M-CPU Series Specifications

General

Power Supply	24 VDC
Number of Instructions	Over 400 instructions
Model	CJ2M-CPU11, CJ2M-CPU12, CJ2M-CPU13, CJ2M-CPU14, CJ2M-CPU15
Program Capacity	5K steps to 60K steps
I/O Capacity	Up to 2, 560 points
Communication Ports	Ethernet, USB, RS-232C
Execution Time	0.04 µs per basic instruction
Operating Temperature	0 to 55°C
Position Control	Supported
High-speed Counter	100 kHz max.
Pulse Output	100 kHz max.
Maximum Units	40 units
Storage Temperature	-20 to 75°C
Interrupt Inputs	Supported