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 EL2596 has on the “Process data” tab
the following “Predefined PDO” sentences:
In detail the sentences are composed as follows:
Operation mode | Name | SM2, PDO assignment | SM3, PDO assignment |
|---|---|---|---|
Current-controlled output | Standard digital output (default setting) | 0x1600 | 0x1A00 |
Standard digital output with info data | 0x1600 | 0x1A00 | |
External trigger input | 0x1600 | 0x1A00 | |
External trigger input with info data | 0x1600 | 0x1A00 | |
DC digital output | 0x1600 | 0x1A00 | |
DC digital output with info data | 0x1600 | 0x1A00 | |
Current Control | 0x1600 | 0x1A00 | |
Current Control with info data | 0x1600 | 0x1A00 | |
PWM with current | 0x1600 | 0x1A00 | |
PWM with current and info data | 0x1600 | 0x1A00 | |
Voltage-controlled output | Voltage control | 0x1600 | 0x1A00 |
Voltage control with info data | 0x1600 | 0x1A00 | |
PWM | 0x1600 | 0x1A00 | |
PWM with info data | 0x1600 | 0x1A00 |