CS-Studio rules on X/Y Plot

["Pearson, Matthew via Tech-talk" <tech-talk at aps.anl.gov>]

Hi,

 

I’m seeing some odd behavior with an X/Y plot in CS-Studio. I have 3 rules setting these properties:

 

y_axes[0].autoscale

y_axes[0].maximum

y_axes[0].minimum

 

and 3 PVs for each of those. For example, the autoscale rule is simply:

 

try:

    pvInt0 = PVUtil.getLong(pvs[0])

 

## Script Body

    if pvInt0==0:

        widget.setPropertyValue('y_axes[0].autoscale', False)

    else:

        widget.setPropertyValue('y_axes[0].autoscale', True)

 

except (Exception, lang.Exception) as e:

    widget.setPropertyValue('y_axes[0].autoscale', True)

    if not isinstance(e, PVUtil.PVHasNoValueException):

        raise e

 

and that works fine. The pv0 is:

 

record(bo, "$(S)vAcq:ScaleAuto") {

  field(DESC, "Waveform Autoscale")

  field(PINI, "YES")

  field(VAL, "1")

  field(ZNAM, "Manual")

  field(ONAM, "Auto")

}

 

However, the script for maximum and minimum don’t always work (mostly don’t work). Here’s the one for maximum:

 

try:

    pvInt0 = PVUtil.getLong(pvs[0])

    pvInt1 = PVUtil.getLong(pvs[1])

    pv1 = PVUtil.getDouble(pvs[1])

 

## Script Body

    if pvInt0==0:

        widget.setPropertyValue('y_axes[0].maximum', pv1)

    else:

        widget.setPropertyValue('y_axes[0].maximum', 100.0)

 

except (Exception, lang.Exception) as e:

    widget.setPropertyValue('y_axes[0].maximum', 100.0)

    if not isinstance(e, PVUtil.PVHasNoValueException):

        raise e

 

with pv0 the same as before, and the maximum one (pv1) being:

 

record(ao, "$(S)vAcq:ScaleMax") {

  field(DESC, "Waveform Max Limit")

  field(PINI, "YES")

  field(VAL, "100")

  field(PREC, "3")

  field(EGU,  "kV")

}

 

If I switch $(S)vAcq:ScaleAuto to Auto (1), it works fine and the plot autoscales. If I switch to Manual (0), the scale doesn’t change. I can force it to work by forcing a monitor update (setting MDEL=-1 and processing the record) or by simply changing the value.

 

If I reload the screen after switching to Manual (0), mostly the plot ends up with a fixed Y axis from 0.0 to 10.0 (I’m not sure where the 10.0 comes from, as the "$(S)vAcq:ScaleMax is not 10.0 and the default setting in the screen XML file is 100.0).

 

Any ideas?  

 

I’m using the latest SNS CS-Studio build, as of a few days ago.

 

I know the user can edit the autoscale, max and min settings from the runtime settings window, but I want these settings autosaved and to persist between CS-Studio instances and between IOC reboots. I can work around it I think, making use of that MDEL=-1 trick, but I’d like to understand where my scripts are going wrong.

 

Cheers,

Matt