Instruction Execution Status
You can check the error status with the system variable #L_ExIOSpParmErr (special I/O parameter error).
30.5.1.3 Special I/O System Variables
Enabling condition
While the instruction is in operation and when it is confirmed that there is pulse catch input clear state
If no error has occurred
Disabling condition
Disabling condition occurs after setting the "pulse catch input clear" to none, and it’s confirmed that the "pulse catch input clear" state is none
*When disabled, the operand D1 is cleared to 0.
Notes
While executing the instruction, pulse catch input clearing is monitored. If it is being cleared, an error occurs.
When the operand D1 cannot be recognized in the instruction, an error occurs.
When executing the instruction using the pulse (for example, PT instruction), you need to turn the instruction OFF and then turn it ON to execute it again.
When the instruction is executed, it will be in operation.
If the instruction is in operation, the instruction will be executed continuously regardless of the enabling/disabling condition.