Profibus-Pa Communications For The Sitrans Lr 400; Appendix Vi - Siemens sitrans LR 400 Instruction Manual

Appendix VI

Profibus-PA Communications for the SITRANS LR 400

Profibus-PA is an open industrial protocol. Full details about Profibus PA can be obtained
from Profibus International at www.profibus.com
The SITRANS LR 400 is a Class A, Profile Version 3.0, PA device. It supports Class 1
Master for Cyclic data exchange, and Class 2 for acyclic services: (See below for details).
The SITRANS LR 400 can be configured using a software package. There are a number of
different software packages available and the SITRANS LR 400 should work well with
any one of them. The recommended software package is the Simatic Process Device
Manager (PDM) by Siemens.
Device Descriptor
In order to use Process Device Manager (PDM) with Profibus-PA, you will need the
Device Descriptor, which will be included with new versions of PDM. Currently you can
locate the Device Descriptor in Device Catalog, under Level/Echo/Siemens Milltronics.
If you do not see SITRANS LR 400 under Siemens Milltronics, you will need to download
an update file from the Siemens Milltronics Web site: www.siemens-milltronics.com
The GSD file
The GSD file SM_062A.GSD can be obtained from Siemens Milltronics at our web site:
www.siemens-milltronics.com. (There is an example on page 90, To configure and use
Profibus-PA with an S7-300 PLC.)
Bus address (Device Address)
Values
• This value can be set via Bus Address in the Auto-setup parameters, or over the
network. (After changing the value, turn the unit off and back on again in order for
the change to take effect.)
Page 86
Range: 0 to 126
Pre-set: 126
SITRANS LR 400 – INSTRUCTION MANUAL 7ML19985FH03