read write TIMERS variables

%TMxxx.V variables really writables ?
How to use it?

Quite likely a mistake in the documents. The timer value appears to be read only.

JT

there are several similar mistakes
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and how can I reset the timer TOF ?

TM.0.V stands for the current value of the timer (can only be read)
TM0.P is the preset time and it can be written to.

all .P variables can be read/written
the counter's .V can be read/written to

all output pins can be read/written to.
B variables can be read and written too.

We could probably make the .V variable writable if there is a good use case.

Also, can you explain what you are trying to do?

Chris

The task is this: it is required homing the spindle.(with resolver)
This must be done at the beginning of work.
(let's say together axis.2.homing)

With a timer (TM5) we give time for this procedure .

Q7 - enable resolver index-enable

Suppose that during the shoming_procedure,
the operator turned off the machine and turned it on again.
I would like the index to turn off.
But the timer continues to run.
So I would like to be able to forcibly reset it.

(this is one example.
this is often required in other cases as well )

could you put a NC B variable inline with I8?
open the b variable would reset the timer.

after switching off the contact I0, the timer TOF is not reset
(he was created for this )

i use two timers. one old type timer feeding a new one. I will have to check exactly what is was but I think i got it working nice.

reply here if you want to see it and I will dig out a photo

I'll try add VAR_TIMER_IEC_RESET
as %TMn.R in sourse CL.

I did modify the timers to allow writing to the value, but it didn't seem to work as you wished.
It's a one word change in vars_name_list.c - if you want to try it.