25 HIGH-SPEED INPUT/OUTPUT FUNCTION
25.3 Pulse Width Measurement Function
311
25
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/DHCMOV instruction.
■Corresponding devices
The device numbers corresponding to each channel are as follows.
■Update timing
Devices are updated by the END instruction.
When the HCMOV/DHCMOV instruction is executed, devices are updated immediately.
■Clear timing
The timing when the device is cleared is as follows.
•Power OFFON
• Reset
•STOP/PAUSERUN
• When "0" is written by the HCMOV/DHCMOV instruction
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/DHCMOV instruction.
■Corresponding devices
The device numbers corresponding to each channel are as follows.
■Update timing, clear timing
Same as the pulse width maximum value (Page 311 Pulse width maximum value)
CPU module High-speed pulse input/output module
First module Second module Third module Fourth module
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12
SD5027,
SD5026
SD5047,
SD5046
SD5067,
SD5066
SD5087,
SD5086
SD5107,
SD5106
SD5127,
SD5126
SD5147,
SD5146
SD5167,
SD5166
SD5187,
SD5186
SD5207,
SD5206
SD5227,
SD5226
SD5247,
SD5246
CPU module High-speed pulse input/output module
First module Second module Third module Fourth module
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 CH9 CH10 CH11 CH12
SD5029,
SD5028
SD5049,
SD5048
SD5069,
SD5068
SD5089,
SD5088
SD5109,
SD5108
SD5129,
SD5128
SD5149,
SD5148
SD5169,
SD5168
SD5189,
SD5188
SD5209,
SD5208
SD5229,
SD5228
SD5249,
SD5248