SIMATIC WinCC Open Architecture Forum

Posted: **Tue Dec 01, 2020 12:03 pm**

a virtual Method toVar implented from class Transformation:

VariablePtr KSKD_set4tmTrans::toVar(const PVSSchar *_buffer, const PVSSushort _dlen,
                                   const PVSSushort subix) const
{
	DEBUG_WORK("toVar:Start")
	DEBUG_WORK("toVar:dlen="<< _dlen<<";subix="<< subix<<";transType="<< transType)
...
}

When a Para config _subindex is zero log is as described below:
WCCOAKSKD_set4tmDrv31:WCCOAKSKD_set4tmDrv(31), 2020.12.01 15:43:37.815, WORK, "processData2Dp called: startix = 0; nofElements = 1 at 2020.12.01 15:43:37.815"
WCCOAKSKD_set4tmDrv31:WCCOAKSKD_set4tmDrv(31), 2020.12.01 15:43:37.819, WORK, "convert2Ing called for (Type: 293 Sys: 101 Dp: 3447 El: 140 : _address..)"
WCCOAKSKD_set4tmDrv31:WCCOAKSKD_set4tmDrv(31), 2020.12.01 15:43:37.821, WORK, toVar:Start
WCCOAKSKD_set4tmDrv31:WCCOAKSKD_set4tmDrv(31), 2020.12.01 15:43:37.822, WORK, toVar:dlen=2;subix=0;transType=1001

When a Para config _subindex is not zero (example 1) log is as described below:
WCCOAKSKD_set4tmDrv31:WCCOAKSKD_set4tmDrv(31), 2020.12.01 15:56:12.857, WORK, "processData2Dp called: startix = 0; nofElements = 1 at 2020.12.01 15:56:12.857"

how to using of _subindex?

Posted: **Wed Dec 02, 2020 8:21 am**

How to using subindex to read dyn types values in toVar method?
I configured subindex with value 1, but toVar called twice with subindex=0, and after with subindex=1.

In implemeted addDpPa method of HWMapper runned this code:

Code: Select all

  // Set Address and Subindex
  hwObj->setConnectionId(confPtr->getConnectionId());
  hwObj->setAddress(confPtr->getName());       // Resolve the HW-Address, too
  hwObj->setSubindex(confPtr->getSubindex());
  DEBUG_WORK("addDpPa:confPtr->getSubindex():"<< confPtr->getSubindex())
  hwObj->setNumberOfElements(confPtr->getTransform()->getNumberOfElements());

  // Set the data type.
  hwObj->setType(confPtr->getTransform()->isA());

  // Set the len needed for data from _all_ subindices of this PVSS-Address.
  // Because we will deal with subix 0 only this is the Transformation::itemSize
  hwObj->setDlen(confPtr->getTransform()->itemSize());

In "whilecycle" of implemeted groupQuery method of HWService I called setNumberOfElements with value 2.
Dlen and itemSize allow to fit NumberOfElements.

I planed to return in toVar the dyn type value. First item of dyn type value i want to set using subindex (example 0, 1 or 2 ..), next values by using subindex+1, etc

SIMATIC WinCC Open Architecture Forum

API Driver on 3.17. method toVar is not called when the subindex is not zero

API Driver on 3.17. method toVar is not called when the subindex is not zero

Re: API Driver on 3.17. method toVar is not called when the subindex is not zero