Lenze C520 User Manual

8.1.5 Edit EtherCAT I/O mapping
If you insert addional eld devices in the control conguraon or change the
PDO mapping, the object addresses change. Therefore, the input and output
objects in the PLC program must be accessed via individual unambiguous
variables. The variable names must comply with the IEC 61131 syntax.
The manual assignment of object addresses in the Address column is not
supported.
On the EtherCAT I/O image tab, you can enter variable names by double-clicking the variable
elds or pressing the space key. By clicking the menu buon, you can reference already
exisng variables or enter variable names directly in the input eld to create system variables.
For the PLC program, the corresponding system variables are available.
8.1.5.1 Set PDO mapping
Set the PDO mapping in the selected EtherCAT slave. The process data serves to select the
inputs and outputs.
The PDO mapping for the EtherCAT slave can be composed of 3 parts:
•
Unchangeable stac part.
•
Dynamic part. Contains PDOs for the dierent operaon modes.
•
Freely congurable part. Acvated in the »PLC Designer« and enables individual mapping.
Changing PDO mapping sengs
How to change the PDO mapping sengs:
1. Acvate expert sengs in the »PLC Designer«
2. Remove the checkmark in the PDO assignment checkbox.
3. Check the desired seng.
The seng has been changed.
8.1.5.2 Acvate PDO mapping
If the device descripons for corresponding EtherCAT devices that are supplied with the »PLC
Designer« are used, the process data is copied to the subordinate node automacally.
Manually link process data
If the process data is sll to be linked manually, acvate the Direct access to I/O addresses by
the applicaon opon on the LenzeLogicDrive Conguraon tab. In this seng, you cannot
use the prepared funcon blocks. The process data (I/O addresses) must be linked manually.
Conguring the network
EtherCAT
Edit EtherCAT I/O mapping
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Lenze C520 Specifications

General

Brand	Lenze
Model	C520
Category	Controller
Language	English