Mitsubishi Electric FX5 User Manual page 213

Special relay Function
SM4548 High-speed counter underflow (CH1)
SM4549 High-speed counter underflow (CH2)
SM4550 High-speed counter underflow (CH3)
SM4551 High-speed counter underflow (CH4)
SM4552 High-speed counter underflow (CH5)
SM4553 High-speed counter underflow (CH6)
SM4554 High-speed counter underflow (CH7)
SM4555 High-speed counter underflow (CH8)
SM4556 High-speed counter underflow (CH9)
SM4557 High-speed counter underflow (CH10)
SM4558 High-speed counter underflow (CH11)
SM4559 High-speed counter underflow (CH12)
SM4560 High-speed counter underflow (CH13)
SM4561 High-speed counter underflow (CH14)
SM4562 High-speed counter underflow (CH15)
SM4563 High-speed counter underflow (CH16)
SM4564 High-speed counter count direction monitor (CH1)
SM4565 High-speed counter count direction monitor (CH2)
SM4566 High-speed counter count direction monitor (CH3)
SM4567 High-speed counter count direction monitor (CH4)
SM4568 High-speed counter count direction monitor (CH5)
SM4569 High-speed counter count direction monitor (CH6)
SM4570 High-speed counter count direction monitor (CH7)
SM4571 High-speed counter count direction monitor (CH8)
SM4572 High-speed counter count direction monitor (CH9)
SM4573 High-speed counter count direction monitor (CH10)
SM4574 High-speed counter count direction monitor (CH11)
SM4575 High-speed counter count direction monitor (CH12)
SM4576 High-speed counter count direction monitor (CH13)
SM4577 High-speed counter count direction monitor (CH14)
SM4578 High-speed counter count direction monitor (CH15)
SM4579 High-speed counter count direction monitor (CH16)
Operation
ON OFF
Has occurred Has not occurred
Down-counting Up-counting
24 HIGH-SPEED INPUT/OUTPUT FUNCTION
24.1 High-speed Counter Function
Default R/W
OFF R/W
OFF R
24
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