Commissioning Procedure; Diagnostics Options - Siemens SINAMICS S120 Function Manual

Communication PROFIBUS DP/PROFINET IO
10.2 Communication via PROFIBUS DP
Bus terminating resistor and shielding
Reliable data transmission via PROFIBUS depends, amongst other things, on the setting for
the bus terminating resistors and the shielding for the PROFIBUS cables.
● Bus terminating resistor
● Shielding for the PROFIBUS cables
10.2.2.2

Commissioning procedure

Preconditions and assumptions for commissioning
PROFIBUS slave
● The PROFIBUS address to be set for the application is known.
● The telegram type for each drive object is known by the application.
PROFIBUS master
● The communication properties of the SINAMICS S120 slave must be available in the
Commissioning steps (example with SIMATIC S7)
1. Set the PROFIBUS address on the slave.
2. Set the telegram type on the slave.
3. Carry out the following in HWConfig:
4. The I/O addresses must be assigned in accordance with the user program.
10.2.2.3

Diagnostics options

The standard slave diagnostics can be read online in the HW config.
494
The bus terminating resistors in the PROFIBUS plugs must be set as follows:
– First and last nodes in the line: switch on terminating resistor
– Other nodes in the line: switch off terminating resistor
The cable shield in the plug must be connected at both ends with the greatest possible
surface area.
References: /GH1/ SINAMICS S120 Equipment Manual for Control Units and Additional
System Components
master (GSD file or drive ES slave OM).
– Connect the drive to PROFIBUS and assign an address.
– Set the telegram type.
The same telegram type as on the slave should be set for every drive object
exchanging process data via PROFIBUS.
The master can send more process data than the slave uses. A telegram with a larger
PZD number than is assigned for the drive object STARTER can be configured on the
master. The PZDs not supplied by the drive object are filled with zeros.
The setting "without PZD" can be defined on a node or object (e.g. infeed controlled
via terminals).
Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5
Drive functions