Process image

The default process image of the EL3681 has 3 inputs (Status, Settings and Value) and one output (Control).
Status/Settings carry special information in the individual bits. From TwinCAT 2.11 these bits are explicitly accessible in the System Manager (see Fig. Default process image EL3681), although the complete status word (or Settings and Control) can be linked with corresponding PLC variables.

Process image 1:
Default process image EL3681

The size of the transferred process image can be reduced via the PDO option, see Fig. PDO option, TwinCAT System Manager.

Process image 2:
PDO option, TwinCAT System Manager