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19 BUILT-IN I/O FUNCTION
19.7 PWM Function
List of Special relays/special registers
The list of special relays/special registers used in PWM output is shown below.
R/W: Read or write
R: Read only
Details of special relays/special registers
Details of special relays/special registers used in PWM output are explained below.
Operation monitor
This monitor is a device for monitoring the in operation/stopped status of PWM output.
■Corresponding devices
The device numbers corresponding to each channel are as follows.
■Update timing
The timing of device update is as follows.
Special relays/
special
registers
Function Description Default R/W
SM5300 Operation monitor (CH1) The operation/stopped status of PWM output on the target
channel can be checked.
OFF: Stopped
ON: In operation
OFF R
SM5301 Operation monitor (CH2)
SM5302 Operation monitor (CH3)
SM5303 Operation monitor (CH4)
SD5301, SD5300 CH1 number of output pulses The number of pulses to output are stored. 0 R/W
SD5303, SD5302 CH1 pulse width The pulse width is stored. 0 R/W
SD5305, SD5304 CH1 period The period is stored. 0 R/W
SD5307, SD5306 CH1 Number of output pulses
current value monitor
The current value of the number of output pulses is stored. 0 R
SD5317, SD5316 CH2 number of output pulses The number of pulses to output are stored. 0 R/W
SD5319, SD5318 CH2 pulse width The pulse width is stored. 0 R/W
SD5321, SD5320 CH2 period The period is stored. 0 R/W
SD5323, SD5322 CH2 Number of output pulses
current value monitor
The current value of the number of output pulses is stored. 0 R
SD5333, SD5332 CH3 number of output pulses The number of pulses to output are stored. 0 R/W
SD5335, SD5334 CH3 pulse width The pulse width is stored. 0 R/W
SD5337, SD5336 Ch3 period The period is stored. 0 R/W
SD5339, SD5338 CH3 Number of output pulses
current value monitor
The current value of the number of output pulses is stored. 0 R
SD5349, SD5348 CH4 number of output pulses The number of pulses to output are stored. 0 R/W
SD5351, SD5350 CH4 pulse width The pulse width is stored. 0 R/W
SD5353, SD5352 CH4 period The period is stored. 0 R/W
SD5355, SD5354 CH4 Number of output pulses
current value monitor
The current value of the number of output pulses is stored. 0 R
CH1 CH2 CH3 CH4
SM5300 SM5301 SM5302 SM5303
ON OFF
• PWM output driven by HIOEN instruction
• PWM instruction ON execution
• PWM output stopped by HIOEN instruction
• After end of output of the specified number of pulses
• PWM instruction OFF execution
• Activation contact turned OFF
•Power OFFON, reset, RUNSTOP/PAUSE