Omron CP - PROGRAMMING MANUAL 05-2007 - Page 782

749
High-speed Counter/Pulse Output Instructions Section 3-20
Example When CIO 0.00 turns ON in the following programming example, ORG(889)
starts an origin return operation for pulse output 0 by outputting pulses using
the CW/CCW method. According to the PLC Setup, the initial speed is
100 pps, the target speed is 200 pps, and the acceleration and deceleration
rates are 50 Hz/4 ms.
The PLC Setup parameters are as follows:
3-20-10 PULSE WITH VARIABLE DUTY FACTOR: PWM(891)
Purpose PWM(891) is used to output pulses with the specified duty factor from the
specified port.
Ladder Symbol
Variations
Applicable Program Areas
Operands P: Port Specifier
The port specifier specifies the port where the pulses will be output.
@ORG
#0000
#1000
0.00
200 pps
100 pps
Pulse output 0
Origin return, CW/CWW method
Tim
e
Speed
ORG(889) executed. Output stopped.
Parameter Setting
Pulse Output 0 Starting Speed for Origin Search and
Origin Return
0000 0064 hex: 100 pps
Pulse Output 0 Origin Return Target Speed 0000 00C8 hex: 200 pps
Pulse Output 0 Origin Return Acceleration Rate 0032 hex: 50 hex/4 ms
Pulse Output 0 Origin Return Deceleration Rate 0032 hex: 50 hex/4 ms
PWM
P
F
D
P: Port specifier
F: Frequency
D: Duty factor
Variations Executed Each Cycle for ON Condition PWM(891)
Executed Once for Upward Differentiation @PWM(891)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK
PPort
0000 hex Pulse output 0
Duty factor in increments of 1%, Frequency in increments of 0.1 Hz
0001 hex Pulse output 1
Duty factor in increments of 1%, Frequency in increments of 0.1 Hz
1000 hex Pulse output 0
Duty factor in increments of 0.1%, Frequency in increments of 0.1 Hz
1001hex Pulse output 1
Duty factor in increments of 0.1%, Frequency in increments of 0.1 Hz