Programming manual SCU-series
HB-37500-820-10-12F-EN SCU Programming manual
Page 236 of 252
Status: 19.03.2021
5.6.4. Input elements
The input elements are marked in the AWL code.
SQH marks the start of an input element and SQC marks the end of an input element.
SQH marks the number of the input element
SQC marks the backup value of the input element logic.
Input elements marked with SQH/SQC must only be checked with respect to their instance and
with respect to their bit location. Their logic is checked in the assembly.