Siemens SINAMICS S120 Function Manual page 406

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Communication PROFIBUS DP/PROFINET IO

10.1 Communication according to PROFIdrive

● Controller (PROFIBUS: Master Class 1, PROFINET IO: IO Controller)

● Supervisor (PROFIBUS: Master Class 2, PROFINET IO: IO Supervisor)

● Drive Unit (PROFIBUS: Slave, PROFINET IO: IO Device)

Interface IF1 and IF2

The Control Unit can communicate via two different interfaces (IF1 and IF2).

These interfaces have the following basic properties:

For additional information on the IF1 and IF2 interfaces, see section "Parallel operation of

communication interfaces" in this manual.

This is typically a higher-level control in which the automation program runs.

Example: SIMATIC S7 and SIMOTION

Devices for configuration, commissioning, operator control and monitoring during bus

operation. Devices that only non-cyclically exchange data with Drive Units and

Controllers.

Examples: Programming devices, human machine interfaces

The SINAMICS drive unit is with reference to PROFIdrive, a Drive Unit.

PROFIdrive, standard telegrams, cycle synchronization, all DO types, can be used by

PROFINET IO and PROFIBUS

No PROFIdrive, no standard telegrams, no clock synchronization, servo, vector and

infeed, reduced number of transferrable data (16 PZDs max.), can be used by CANopen

Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5

Drive functions