Yaskawa MP920 Motion Module - Manual (Page 430)

10.3 Counter Modes
10-29
10
„ PI Latch Function
The PI Latch Function latches the current value at the moment an external signal is input (or
at the rising edge of an external signal) and stores it in a register.
Either a special-purpose discrete input (PI input) or the pulse C input can be selected as the
external signal. Specify the external signal in fixed parameter 07 (PI Latch Detection).
* 1. PI latch detection request = Operating mode ( IL†††† Bit 12)
* 2. PI detection position monitor = PI latch monitor (O L†††† + 6 )
The PI Latch Function can be used only in Reversible Counter Mode.
PINT
0
(+)
(-)
Hardware latch
1 μs min.
PINT
Latch detection request *1
External signal
Latch completion signal
Detection position monitor *2
Count register
IMPORTANT