Hello,
We have found a problem using WinCC OA S7plus driver communication with a S1500 PLC
Here is the configuration used:
WinCC OA version: 3.15 64bit
Patches: 2
operating system: Windows7 64bit
system configuration: 1 WinCC OA UI + 1 PLC S1500
Problem description:
Connecting a WinCC OA "STRING" datapoint to a "STRING" symbolic name of the PLC works OK using S7-PLUS driver until you don't exchange more than 128 characters.
up to 128 characters per STRING, the S7PLus from WinCCOA crashes!...even if the limit is set to 256 characters.
Could you please let us know if you can reproduce?