General Information About Profibus; General Information About Profibus For Sinamics - Siemens SINAMICS S120 Installation And Start-Up Manual

Communication via PROFIBUS

General information about PROFIBUS

4.1 General information about PROFIBUS
4.1.1

General information about PROFIBUS for SINAMICS

General
PROFIBUS is an open international field bus standard for a wide range of produc-
tion and process automation applications.
The following standards ensure open, multi-vendor systems:
S International standard EN 50170
S International standard IEC 61158
PROFIBUS is optimized for high-speed, time-critical data communication at field
level.
Note
PROFIBUS for drive technology is standardized and described in the following
document:
References:
Caution
When synchronization is carried out for the first time, the infeed and all the drives
in the drive unit switch to pulse inhibit during synchronization on the
clock-synchronous PROFIBUS (approx. 1s). This is followed by a sudden return of
the pulses. This applies to clock-synchronous and non-clock-synchronous drives
within the drive unit. With non-clock-synchronous drives, no alarm or fault is
currently output. If the PROFIBUS cycle is lost after synchronization has been
carried out, all the drives in the unit are stopped via F01911. The infeed remains in
operation, provided that it does not receive its process data via PROFIBUS.
This can have the following effects:
- Overcurrent when the pulses return
- Drives that must run (e.g. spinning pumps) may stop.
Caution
!
If the CAN connector is mistakenly plugged into the PROFIBUS connector, this
can destroy the CAN master.
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/P5/ PROFIdrive Profile Drive Technology
SINAMICS S120 Installation and Start-Up Manual, 12/04 Edition
E Siemens AG, 2004. All rights reserved