这是一个时间继电器的宏，放在background的宏里面

plc m115  ON  启动计时，现在的问题是M115 ON 后计时启动，但M115 off后，又重复计时

大家帮我看看问题出在哪，谢谢了！！

IFB {Link1}1@PLC_M115 == ON THEN GOTO LABEL 1

IFB {Link1}1@PLC_M114 == OFF THEN GOTO LABEL 2

LABEL 1

$408 = $400 * 60

$410 = $408 + $402

$404 = 0

$406 = 0

$412 = 0

FOR $410

$412 = $412 + 1

$404 = $412 / 60

$414 = $404 * 60

$406 = $412 - $414

DELAY(1010)

NEXT

IFB {Link1}1@PLC_M114 == OFF THEN GOTO LABEL 2

BITON ({Link1}1@PLC_M94)

BITON ({Link1}1@PLC_M116)

FOR 5

DELAY 1005

NEXT

END

LABEL 2

BITOFF ({Link1}1@PLC_M94)

BITOFF ({Link1}1@PLC_M116)

BITOFF ({Link1}1@PLC_M94)

END

ENDIF