Filter
Top Products
19 BUILT-IN I/O FUNCTION
19.1 High-speed Counter Function
157
19
• Operation when preset input logic: negative logic, preset control switch: rising edge + falling edge
The preset is executed when the preset input changes ONOFF and when it changes OFFON.
• Operation when preset input logic: negative logic, preset control switch: constant when ON
The preset is constantly executed while the preset input is OFF.
High-speed counter preset value
These devices set the values to store in the current values when presets are executed.
■Corresponding devices
The device numbers corresponding to each channel are as follows.
■Description
These devices set the values to set for the current values when presets are executed.
If the preset value is set to be greater than the ring length, an error occurs when the high-speed counter is started.
• The preset value can also be modified while the high-speed counter is operating. The update timing is END
processing.
• These devices also operate when the FX3 compatible high-speed counter function is valid.
■Clear timing
The timing when the device is cleared is as follows.
• Power ON, Reset, STOPRUN
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
SD4513,
SD4512
SD4543,
SD4542
SD4573,
SD4572
SD4603,
SD4602
SD4633,
SD4632
SD4663,
SD4662
SD4693,
SD4692
SD4723,
SD4722
Preset input
Count input
ON
OFF
ON
OFF
Current value
10
9
8
7
6
5
4
3
2
1
0
Preset input
Count input
ON
OFF
ON
OFF
Current value
10
9
8
7
6
5
4
3
2
1
0