Process data

Parameterization

An EL2838 is parameterized via the process data tab (A) in the TwinCAT System Manager. The EL2838 does not have a CoE directory.

• Changes to the process data-specific settings are generally only effective after a restart of the EtherCAT master:
  Restart TwinCAT in RUN or CONFIG mode; RELOAD in CONFIG mode

Illustration of the process data and structural contents

The EL2838 provides two different process data sets for transmission:

• the "DOS Inputs Channel n" channel diagnostics (8 bits)
• the switching state of the outputs “DOS outputs channel” (8 bits)

The plain text display of the bit meanings is particularly helpful for commissioning and also for linking with the PLC program.
By right-clicking on the status variable in the configuration tree (A), the structure can be opened for linking (B).