30.5.11.3 Pulse Catch Clear - Pulse Catch (LT Series)

Use this function to clear the pulse catch. The pulse catch clear turns OFF the pulse catch detect flag using the pulse catch clear flag under the CH special I/O control in the system variable (#L_ExIOSpCtrl).

To detect the sequential pulses, turn OFF the pulse catch detect flag, acknowledge the status with the clear completion flag under the special I/O state, and perform the pulse detect below.

The Operation bit will differ depending on the CH to which you allocate the pulse catch.

Setup Process

1. Regarding the details in [Control Special I/O], the Operation bit will differ, depending on the CH to which you allocate the pulse catch, as shown below.
   #L_ExIOSpCtrl
   
   Turn ON the start bit of the CH to clear the pulse catch.
   

2. In [Special I/O State], check whether Clear is complete. Details of variables differ depending on the CH to which you allocate the pulse catch, as in the following figure.
   
   If the start bit of the CH (0 bit) is 1, the pulse catch has been cleared.