BECKHOFF FM33xx - Manual (Page 21)

I/O configuration
16 FM33xx
I/O configuration
The TC-Plug modules can be configured with a configuration software that
supports the integration of the modules via a GSD file.
TC-Plug modules
are slave modules conforming to PROFIBUS.
Multiplex mode and simple
mode The TC-Plug modules can be operated in two modes. Different GSD files
are required, depending on whether the TC-Plug is to be configured in
multiplex or simple mode. Multiplex mode enables the quantity of data
transferred via the fieldbus to be minimized. In this mode, communication
with the TC-Plug occurs via the status/control word, and at the same time
the channel data from a maximum of 4 channels are transferred via the
fieldbus (see chapter: Protocol for the cyclic transfer in multiplex mode).
For most applications, the TC-Plug can be operated in simple mode. In this
mode, the channel data from a maximum of 32 channels can be
transferred at the same time via the fieldbus. The simple mode is easier to
configure and is recommended for most applications.
Configuration in the TwinCAT System
Manager
This section describes the configuration of the TC-Plug modules with the
TwinCAT System Manager. A PROFIBUS master card such as the
CP5412A2 from Siemens can be used as the master. The configuration of
a TC-Plug module with the CP5412A2 is described below.
Configuring the PROFIBUS master
If the right mouse button is clicked on the I/O Devices branch in the
TwinCAT System Manager, the following context menu appears.
Add a PROFIBUS master
Using the menu command Append Device… a PROFIBUS master can be
inserted into the configuration. The PROFIBUS master card can be
selected in the dialog box which then opens.