Parallel Operation Of Communication Interfaces - Siemens SINAMICS G150 Operating Instructions Manual

Operation

6.11 Parallel operation of communication interfaces

6.11 Parallel operation of communication interfaces
General information
Cyclic process data (setpoints/actual values) are processed using interfaces IF1 and IF2.
The following interfaces are used:
● Onboard interfaces for PROFIBUS DP or PROFINET
● An additional interface (COMM board) for PROFINET (CBE20) or CANopen (CBE10) for
Parameter r8859 "COMM board identification data" can be used to determine whether a
communication module is inserted in the option slot.
With parameter p8839, the parallel use of onboard interfaces and COMM board is set and
the functionality is assigned to interfaces IF1 and IF2.
For example, the following applications are possible:
● PROFIBUS DP for drive control and PROFINET for the acquisition of actual
● PROFIBUS DP for control and PROFINET for engineering only
● Mixed mode with two masters (the first for logic and coordination and the second for
● SINAMICS Link via IF2 (CBE20), standard telegrams and PROFIsafe via IF1
● Operation of redundant communication interfaces
Assignment of communication interfaces to cyclic interfaces
Two cyclic interfaces exist for setpoints and actual values, which differ by their parameter
ranges used (BICO, etc.) and the usable functionalities. These two interfaces are designated
IF1 (cyclic interface 1) and IF2 (cyclic interface 2).
Depending on their type (PROFIBUS DP, PROFINET or CANopen) the communication
interfaces are assigned to one of the cyclic interfaces (IF1, IF2) by the factory setting of
p8839 = 99.
For the parallel operation of the communication interfaces, the assignment to the cyclic
interfaces can essentially be defined as required by the user parameterization.
Properties of the cyclic interfaces IF1 and IF2
The following table shows the different features of the two cyclic interfaces:
362
insertion in the Control Unit as an option
values/measured values of the drive.
technology)
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A