Status Word - Beckhoff EL33-00 Series Documentation

Commissioning
5.11

Status word

The status information for each channel of the EL32xx and EL33xx is transmitted cyclically from the terminal
to the EtherCAT Master as process data (PDO). Two versions of the device description are available for the
EL32xx and EL33xx, representing the process image in individual and extended forms.
The difference can be seen in the revision number EL3xxxx-xxxx-XXXX.
The EL32xx or EL33xx transmit the following process data:
• Underrange: Measurement is below range
• Overrange: Range of measurement exceeded ("Cable break" together with "Error")
• Limit 1: Limit value monitoring 0: ok, 1: Limit value overshot , 2: limit range undershot
• Limit 2: Limit value monitoring 0: ok, 1: Limit value overshot , 2: limit range undershot
• Error: The error bit is set if the process data is invalid (cable break, overrange, underrange)
• TxPDO State: Validity of the data of the associated TxPDO (0 = valid, 1 = invalid).
• TxPDO Toggle: The TxPDO toggle is toggled by the slave when the data of the associated TxPDO is
updated. This allows the currently required conversion time to be derived.
The limit evaluation is set in the "8000" objects in the CoE directory.
Differences in the versions of the EL32xx and EL33xx series
The revision differences are illustrated below, using the EL32xx series as an example. The princi-
ples of the description apply equally to the EL33xx series.
Revision -0016 (EL32xx-xxxx-0016)
These terminal revisions have the single process image, see fig. EL32xx-0000-0016 process image in the
TwinCAT 2.11 representation.
Each item of status information is transmitted as a single, linkable process data.
Fig. 174: EL32xx-0000-0016 process image in the TwinCAT 2.11 representation
166 Version: 4.2 EL33xx-00x0