cody_master

 

A better solution would be to include z-phase in the hardware configuration of the HSC. In that way the HSC will be exact all the time... program interrupt and calling HSC_Ctrl will not give as accurate.

 Yes I did it. I get it.

Z-phase is the launcher to recharge the same counter value trougth OB 40 using HSC_Ctrl and New CV.

In the night i will upload a video.

What I am proposing is to not use OB40 and not use HSC_ctrl to better accuracy.
But if the OB40 works for you - then it works for you.

For those interested the above code segment V2.0:

cody_master

William_B

For those interested the above code segment V2.0:

#PositionNormalized :=
     DINT_TO_REAL(#RawPosition - #RawReference) / #PulsePerRev;
#PositionView := FRAC(1.0 + #PositionNormalize) * 360.0;

 Ok. Could you explain me for more detail this?


ST is not available on S7-1200.

Explainn all variables and where insert this segment to understand.

These are parameters to an FB coded in the SCL program language.
The purpose of the FB is to convert the HSC number to a Human readable number.

INPUT PARAMETERS
#RawPosition as DINT  // The number from the HSC
#RawReference as DINT // The user "zero" position
#PulsePerRev as REAL  // Encoder count for each motor revolution

OUTPUT PARAMETER
#PositionView as REAL // The output of the FB..
                      // the human readable number 0 - 360'

TEMP PARAMETER
#PositionNormalized as REAL // Temporary result of a calculation