Fig. 37 Creation Of Pdo Variables (Twincat Version >= V3.1.4024.0); Fig. 38 Creation Of The Smpdovariables (Twincat Version >= V3.1.4022.30) - Beckhoff EPP3504-0023 Short Manual

Commissioning
Variant A, "Plc" tab:
In general, the generation of this special PDO data type is activated via the PLC settings of the box module
(tab "Plc"): there the check box "Create PLC Data Type" is set ("Copy" then transfers this character string to
the clipboard):
Fig. 37: Creation of PDO variables (TwinCAT version >= V3.1.4024.0)
The setting "Per Channel" can be set if not for all but for one only the structure shall be created.
The address assignments for inputs (%ATI*) and outputs (%ATQ*) are already within this generated
structure. Inputs and outputs are therefore summarized in this structure.
The variables declaration within the function block FB_REALTIME_DIAGNOSIS then contains:
stELM3602Special : MDP5001_350_EB559ACD;
Read access is provided to the inputs of the box module via the substructure MDP5001_350_Input and write
access to the outputs via the substructure MDP5001_350_Output of the structure stELM3602Special.
Variant B, "Create SM/PDO variables":
Commonly, the generation of this specific PDO data type incl. the PDO element will be activated via the
EtherCAT settings of the box module: within the advanced settings under "General"/ "Behavior" the checkbox
"Create SM/PDO Variables" in "Process Data" is to set:
Fig. 38: Creation of the SmPdoVariables (TwinCAT version >= V3.1.4022.30)
The data type is visible by selecting the object and can be copied to the clipboard there:
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