Preselection of process data

An EtherCAT device usually offers several different process data objects (PDO) for input and output data, which can be configured in the System Manager, i.e. they can be activated or deactivated for cyclic transmission. See further below for the corresponding overview. Attention is thereby to be paid to the compatibility of input and output PDO.

From TwinCAT 2.11 with the EtherCAT devices intended for the purpose according to the ESI/XML description, the process data for input and output can be activated simultaneously by appropriate predefined sentences, "Predefined PDO".

The EL2564 and EL2564-0010 terminals have in the "Process data" tab

Preselection of process data 1: — "Process data" tab

the following "Predefined PDO" sentences:

Preselection of process data 2: — TwinCAT System Manager with the PDO selection

In detail the sentences are composed as follows:

Name	SM2, PDO assignment	SM3, PDO assignment
4 Ch	0x1600 0x1601 0x1602 0x1603	0x1A00 0x1A02 0x1A04 0x1A06
4 Ch + Master gain	0x1600 0x1601 0x1602 0x1603 0x1604	0x1A00 0x1A02 0x1A04 0x1A06
4 Ch + Ext. Inputs	0x1600 0x1601 0x1602 0x1603	0x1A01 0x1A03 0x1A05 0x1A07