AS Series Programming Manual 15. When the instruction is executed and the state of the initial input is OFF , the rising-edge trigger corresponds to the odd numbers of the head index value, and the falling-edge trigger corresponds to the even numbers of the head index value. 16. When the PLC executes the instruction and the state of the initial input is ON , the falling-edge trigger corresponds to the odd numbers of the head index value, and the rising-edge trigger corresponds to the even numbers of the head index value. 17. When the PLC executes the instruction, it does not clear the values in the accumulated area and the index areas.
If the data is in a latched area and needs to be enabled again, use the ZRST instruction to clear the values in the head and tail indexes. Example Refer to the example in the YOUT instruction (API 0710) for more information. _6 6-222