Piecing together the Sentron PAC's double integer power rate records.

hola al grupo,

Tengo una dificultad para volver a juntar los registros dobles enteros de tarifa de energía del Sentron PAC.

Actualmente la información está siendo registrada por la librería del PCS7 y a su vez  pero requiere llevar la información al PI System para su registro.

Probé en concatenar, sumar, los registros sin que de la información correcta.

Alguna sugerencia.

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Split from Could share me the information how you made communication with energy meter & git the values right??.

Hello Jaime_Velasquez_Alguedas,

at first welcome to the forum.

This is a english speaking forum. Please be so kind and write your post in english.
Thanks.

Google Translate

hello to the group

I am having a hard time piecing together the Sentron PAC's double integer power rate records.

Currently the information is being registered by the PCS7 library and, in turn, it requires taking the information to the PI System for registration.

I tried to concatenate, add, the records without giving the correct information.

Any Suggestion. 

Hello Jaime;

Are you working with PAC4200 units?

In the system manual for the PAC4200 power meters it is stated that tariff registers are in floating-point format.

https://support.industry.siemens.com/cs/ww/en/view/34261595

So instead of working with these values as DInt or DWord values, try using them as REAL registers in your PLC.

If the resulting value looks good, perfect. If the resulting value is completely wrong (for example 1.0 10^E-32) then you are facing a Big/Little Endian problem, and you should swap the bytes in your register so it matches your CPU microcontroller floating-point math format.

Hope this helps,

Daniel Chartier 

Thanks,

unknown user

i am using sentron pac3200 which delivers only two double integer records, from the same CFC block of PCS7. I kept digging and the wincc uses a script to join the two DWORD records, the issue is to replicate that script in a CFC or on the same pi system.