Siemens ET 200pro - Grouping Electronic Modules in the Configuration; Grouping Modules in Configuration Data (PROFIBUS DP)

Configuring
5.1 PROFIBUS DP
ET 200pro distributed I/O system
142 Operating Instructions, 03/2013, A5E00335544-08
5.1.3
Grouping electronic modules in the configuration
5.1.3.1
Grouping Modules in Configuration Data (PROFIBUS DP)
Introduction
To better utilize the available address range of the DP master and reduce data exchange
between the ET 200pro and the DP master, you can group two digital output modules within
one byte in the output area of the process image. Arrange the electronic modules
systematically, and label these accordingly.
Requirements
● ET 200pro has a maximum address space of 244 bytes for inputs, and 244 bytes for
outputs.
● Grouping of digital output modules
● Other modules may be connected between the modules that can be grouped.
● In the case of CPUs that support swapping interrupts, the swapping interrupt has to be
deactivated in HW Config in order to group modules.
Rules
● The modules that you can group within a byte are of the same module type (see above).
● Any other module types may be inserted between the modules that can be grouped.
● There may be no more than 8 channels (1 byte) in total.