#include "apdefap.h"

int gscAction( void )

{

float a1,b1,a2,b2;

// FOR READING VALUES FROM ABB-OPC SERVER TO SIEMENS PLC VIA WINCC EXPLORER (AS OPC CLIENT)

a1=GetTagFloat("TSD1_SILO1_DEL_1"); //Value from Wincc Explorer

b1=a1;

SetTagFloat("TSD1_SILO1_DEL",b1); //Writing value to PLC

// FOR WRITING VALUES TO ABB-OPC SERVER FROM SIEMENS PLC VIA WINCC EXPLORER (AS OPC CLIENT)

a2=GetTagFloat("TSD1_SILO1_REQ"); //Value from PLC

b2=a2;

SetTagFloat("TSD1_SILO1_REQ_1",b2); /Writing it to SCADA

return TRUE;

}

Narayanaswamy

Dear Nandagate,

First i tried with time base delay. It is not working for me. Updating time is very slow than triggered tag method.

My actual problem is, SCADA to PLC is very fast (less than 2 sec). But, PLC to SCADA writing is more than 4 minutes. All logic was created in one global script.

Please cross check my script for writing from PLC to SCADA and give me some guidence to rectify this delay.

With Best Regards,
S.Narayanaswamy

nandgate

Dear Narayanaswamy,

Try using a time based trigger, instead of a tag based trigger.

With regards,

A V Anand.

 Sir,

Very first time am using ABB ac500 pm590 CPu and Wincc explore. How to communicate with Winncc Explore using OPC. i am blind in OPC configuration. i refer some documents but its confusing so much.

please refer any Step by step Configuration for OPC establishment between ABB CPu and Wincc explore.

Please do needful sir.

Expecting your reply..

Thanks ,

Nithyan.k

Dear All,

Problem solved. Used VB script instead of C script. 

Regards,

S.Narayanaswamy

CAN YOU Share your vb script?