Modular Profibus Devices

Modular Profibus devices allow you to define the variables for a device by selecting one or more modules. This involves defining modules with their inputs and outputs in the GSD file of the corresponding device. The following dialogue appears when adding/inserting a module:

Modular Profibus Devices 1:

Variables

Modular Profibus Devices 2:

The variables of a module can assume one of six types:

  1. Byte (8 bit)
  2. Word (16 bit)
  3. Byte field (n * 8 bit)
  4. Word field (n * 16 bit)
  5. Byte string (n * 8 bit, consistent)
  6. Word string (n * 16 bit, consistent)

The module can have in and/or outputs - and different types.