5
FUNCTIONS
5.6 Count Response Delay Time
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5.6
Count Response Delay Time
In the QD63P6, a delay will occur in counting in the following cases.
(1) When starting counting by the count enable command (Y04), a delay due
to the sequence program scan time will occur.
(2) A delay due to the control cycle (1ms) will occur when executing the
following:
(a) A delay of up to 2ms (1 control cycle 2) will occur from when the count enable
command (Y04) is turned ON/OFF until the present value A (Un\G10 and 11)/
present value B (Un\G200 and 201) is updated in the buffer memory.
(b) A similar delay will occur when the preset command (Y02) is turned from OFF to
ON.
How to calculate the maximum delay time is shown below.
Maximum delay time [ms] = (1 scan time + 2) [ms]