by the way, have you ever connected ignition to S7-1500. I am having problems addressing %MD4220 real data type, I cannot find the right way to address it. MD is real.
Thanks
Try [DeviceName]MREAL4220
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I've tried the way you suggested, I found my issues, it was not addressing issue. I actually changed attribute of all OBs and FBs De-selected "Optimized block access" for all of them.
I thought It was addressing issue. It was driving me crazy.
Thank you for reply.