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19 BUILT-IN I/O FUNCTION
19.1 High-speed Counter Function
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High-speed counter preset input logic
These devices are used for setting the preset input logic.
■Corresponding devices
The device numbers corresponding to each channel are as follows.
■Operation Description
The content of the operation when ON and when OFF is as follows.
• The timing to execute the preset is determined by the preset input logic and the preset control switch.
• These devices also operate when the FX3 compatible high-speed counter function is valid.
■Update timing
The timing of device update is as follows.
Cannot be modified while the high-speed counter is operating. Operates in the configured status when the
high-speed counter starts.
High-speed counter preset input comparison
These devices are used to specify whether or not to perform a comparison with the preset value when there is preset input.
■Corresponding devices
The device numbers corresponding to each channel are as follows.
■Operation Description
The content of the operation when ON and when OFF is as follows.
These devices also operate when the FX3 compatible high-speed counter function is valid.
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
SM4596 SM4597 SM4598 SM4599 SM4600 SM4601 SM4602 SM4603
Operation when ON Operation when OFF
The preset input operates with negative logic The preset input operates with positive logic
ON OFF
• When ON by the user
• When set to negative logic with parameters
• When OFF by the user
• When set to positive logic with parameters
CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8
SM4612 SM4613 SM4614 SM4615 SM4616 SM4617 SM4618 SM4619
Operation when ON Operation when OFF
Execute comparison processing with the preset value when there is preset
input
Do not execute comparison processing when there is preset input