Beckhoff EJ3255, Documentation

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Commissioning
EJ3255 35 Version: 1.1
6 Commissioning
6.1 Note on documentation for the EL3255
Detailed documentation on the commissioning of the EJ3255 module is being prepared.
NOTE
Damage to devices or loss of data
The descriptions and notes on the commissioning of the EL3255 EtherCAT Terminal is
transferable to the EJ3255 EtherCAT plug-in modules.
Before commissioning, read the detailed description of the process data, operating modes
and parameterization in the
EL3255 documentation.
6.2 EJ3255 - Object description and parameterization
EtherCAT XML Device Description
The display matches that of the CoE objects from the EtherCAT XML Device Description. We rec-
ommend downloading the latest XML file from the download area of the Beckhoff website and in-
stalling it according to installation instructions.
Parameterization via the CoE list (CAN over EtherCAT)
The EtherCAT device is parameterized via the CoE-Online tab (double-click on the respective ob-
ject) or via the Process Data tab (allocation of PDOs). Please note the following general CoE notes
when using/manipulating the CoE parameters:
• Keep a startup list if components have to be replaced
• Differentiation between online/offline dictionary, existence of current XML description
• use “CoE reload” for resetting changes
Relevant objects
The object description refers to the Pt100 (RTD) analog input module in the two and four-channel
versions. Observe the indices with regard to the objects relevant for the respective terminal (chan-
nel dependent).
Introduction
The CoE overview contains objects for different purposes of use:
• Objects required for parameterization [
}
36] and profile-specific objects [
}
37] required during
commissioning
• Objects for indicating internal settings [
}
38] (may be fixed)
The following section first describes the objects required for normal operation, followed by a complete
overview of missing objects.