Cyclic Communication - Siemens SINAMICS S120 Series Function Manual

3.2

Cyclic communication

Cyclic communication is used to exchange time-critical process data (e.g. setpoints and
actual values).
3.2.1 Telegrams and process data
The process data (PZD) that is to be transferred is defined through the configuration of the
drive unit (Control Unit). From the perspective of the drive unit, the received process data
represents the receive words and the process data to be sent the send words.
PROFIdrive telegrams
● Standard telegrams
The standard telegrams are structured in accordance with the PROFIdrive profile. The
drive-internal process data links are set up automatically in accordance with the set
telegram number.
The SINAMICS S120/S150 List Manual contains the standard telegrams in the following
function diagrams:
– 2415 PROFIdrive - Standard telegrams and process data 1
– 2416 PROFIdrive - Standard telegrams and process data 2
● Manufacturer-specific telegrams
The manufacturer-specific telegrams are structured in accordance with internal company
specifications. The drive-internal process data links are set up automatically in
accordance with the set telegram number.
The SINAMICS S120/S150 List Manual contains the manufacturer-specific telegrams
(SIEMENS telegrams) in the following function diagrams:
– 2419 PROFIdrive - Manufacturer-specific telegrams and process data 1
– 2420 PROFIdrive - Manufacturer-specific telegrams and process data 2
– 2421 PROFIdrive - Manufacturer-specific telegrams and process data 3
– 2422 PROFIdrive - Manufacturer-specific telegrams and process data 4
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
Communication according to PROFIdrive
3.2 Cyclic communication
37