Hello,Im a student and in my project Im working on WinCC flexible 2005....but i have a problem...i wrote a script using visual basic to calculate el RMS voltage from a record of instantaneous readings...and made an internal tag for the Vrms and made an I/O field for this internal tag but when using runtime only el instantaneous voltage is read but the Vrms always equals zero...and attached the visual basic script used...could anyone please help me with this problem...
Thanks...