Mitsubishi Electric MELSEC Q Series, Руководство пользователя

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Chapter 5 Data Used for Positioning Control
Storage item Storage details
[Md.39] In speed limit flag

If the speed exceeds the "[Pr.8] Speed limit value" ("[Pr.31] JOG speed limit
value" at JOG operation control) due to a speed change or override, the speed
limit functions, and the in speed limit flag turns ON.

When the speed drops to less than "[Pr.8] Speed limit value" ("[Pr.31] JOG speed
limit value" at JOG operation control), or when the axis stops, the in speed limit
flag turns OFF.
Refresh cycle: Immediate
[Md.40] In speed change processing
flag

The speed change process flag turns ON when the speed is changed during
positioning control.

After the speed change process is completed or when deceleration starts with the
stop signal during the speed change process, the in speed change process flag
turns OFF.
Refresh cycle: Immediate
[Md.41] Special start repetition counter

This area stores the remaining number of repetitions during "repetitions" specific
to special starting.

The count is decremented by one (-1) at the loop end.

The control comes out of the loop when the count reaches "0".

This area stores "0" within an infinite loop.
Refresh cycle: Immediate
[Md.42] Control system repetition
counter

This area stores the remaining number of repetitions during "repetitions" specific
to control system.

The count is decremented by one (-1) at the loop start.

The loop is terminated with the positioning data of the control method "LEND",
after the counter becomes "0".
Refresh cycle: Immediate
[Md.43] Start data pointer being
executed

This area stores a point No. (1 to 50) attached to the start data currently being
executed.

This area stores "0" after completion of a positioning operation.
Refresh cycle: Immediate
[Md.44] Positioning data No. being
executed

This area stores a positioning data No. attached to the positioning data currently
being executed.

This area stores "0" when the JOG/inching operation is executed.
Refresh cycle: Immediate
[Md.45] Block No. being executed

When the operation is controlled by "block start data", this area stores a block
number (7000 to 7004) attached to the block currently being executed.

At other times, this area stores "0".
Refresh cycle: At start