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19 BUILT-IN I/O FUNCTION
19.3 Pulse Width Measurement Function
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19
Pulse width maximum value
The maximum value of the pulse width is stored.
• When logic switching is set to positive logic, the difference from the rising edge up to the falling edge.
• When logic switching is set to negative logic, the difference from the falling edge up to the rising edge.
• The maximum value of the pulse width can be changed only by the HCMOV instruction.
■Corresponding devices
The device numbers corresponding to each channel are as follows.
■Update timing, clear timing
Same as the rising edge ring counter value (Page 180 Rising edge ring counter value)
Pulse width minimum value
The minimum value of the pulse width is stored.
• When logic switching is set to positive logic, the difference from the rising edge up to the falling edge.
• When logic switching is set to negative logic, the difference from the falling edge up to the rising edge.
• The minimum value of the pulse width can be changed only by the HCMOV instruction.
■Corresponding devices
The device numbers corresponding to each channel are as follows.
■Update timing, clear timing
Same as the rising edge ring counter value (Page 180 Rising edge ring counter value)
Period latest value
The latest value of the period is stored.
• When logic switching is set to positive logic, the difference from the previous rising edge up to the latest
rising edge.
• When logic switching is set to negative logic, the difference from the previous falling edge up to the latest
falling edge.
• The latest value of the period can be changed only by the HCMOV instruction.
■Corresponding devices
The device numbers corresponding to each channel are as follows.
■Update timing, clear timing
Same as the rising edge ring counter value (Page 180 Rising edge ring counter value)
CH1 CH2 CH3 CH4
SD5027, SD5026 SD5047, SD5046 SD5067, SD5066 SD5087, SD5086
CH1 CH2 CH3 CH4
SD5029, SD5028 SD5049, SD5048 SD5069, SD5068 SD5089, SD5088
CH1 CH2 CH3 CH4
SD5031, SD5030 SD5051, SD5050 SD5071, SD5070 SD5091, SD5090