Applies To:
  • CitectSCADA 5.42, 5.42A, 5.50, 5.50A, 6.00

I have a DDE client that is logging String tags that can sometimes have NULL string entries.

This results in the spurious error of the form

04/05/04-18:40:09 StrLengthCopy: invalid parameters or copy truncated pDest=03A79130
    pSource=03A754C8 length=1
04/05/04-18:40:09 0x10005388 0x00511616 0x0051165d 0x0054e666
04/05/04-18:40:09 0x00552e44 0x00508fa3 0x004044b4 0x005f2ce2

being appended to the debug.log


Citect has confirmed this to be a problem in CitectHMI/SCADA versions v5.42 to v5.50 Spk A. This problem has been fixed in version 6.