Lenze EtherCAT Controller-based Automation Manuel d'utilisateur télécharger pdf (Page 178)

12 Diagnostics

12.5 Error scenarios

178

Lenze · Controller-based Automation · EtherCAT® Communication Manual · DMS 6.4 EN · 04/2014 · TD17

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12.5.4 Error during process data transfer

A faulty EtherCAT I/O mapping causes errors during the process data transfer.

Cause Use of logic addresses

In the »PLC Designer« application, access does not take place symbolically but directly via

the I/O addresses (%Ixx, %Qxx) of the EtherCAT input and output objects and

the bus

structure, the PDO selection etc. has have changed.

Error message -

Remedies In the »PLC Designer« application, the input and output objects must be accessed via

individual non-ambiguous variables. The variable names must comply with the IEC 61131

syntax (no space characters and leading digits in the variable names).

Example:

Processing EtherCAT I/O mapping

( 95)

Cause Manual definition of the logic address in the EtherCAT I/O mapping

Example: The address %QB70 has been changed to %QB1000.

Error message -

Remedies It is not permissible to manually manipulate the I/O addresses for the EtherCAT bus!

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Lenze EtherCAT Controller-based Automation Manuel d'utilisateur Page 178