Acyclic Communication - Siemens SINAMICS S150 NEMA Operating Instructions Manual

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Abbreviation

Acyclic communication

Acyclic communication, as opposed to cyclic communication, means data is transferred only

when an explicit request is made (e.g., in order to read and write parameters).

The "Read data record" and "Write data record" services are available for acyclic

communication.

The following options are available for reading and writing parameters:

● S7 protocol

This protocol uses the STARTER commissioning tool in online operation via

PROFIBUS/PROFINET, for example.

● PROFIdrive parameter channel with the following data records:

– PROFIBUS: Data block 47 (0x002F)

– PROFINET: Data block 47 and 0xB02F as global access, data block 0xB02E as local

Enclosed Drives

Operating Instructions, 12/2018, A5E36652151A

Actual value of current

Actual torque value

Actual power value

Actual speed value smoothed

Current actual value, smoothed

Torque actual value, smoothed

Power actual value, smoothed

VIK-NAMUR message bit bar

The DPV1 services are available for master class 1 and master class 2.

6.7 Communication according to PROFIdrive

r3113, see table "NAMUR message

Function diagram