Dear All
In STEP 5, within Function Block FB 250, 
what is the purpose of the BU pin? Under what conditions does it go high?

Best Regards
Sandip

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Split from FB 250 & FB 251 Of S5- S7 Conversion .

Hello,

BU is an abrreviation and means exceeding the range.

In case your analogue input is higher than 10V/20mA this Bit changes to TRUE.

Regards