Lenze EtherCAT Controller-based Automation - Manual (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!