Communications Via Profibus Pa; Communication Via Profibus Pa - Siemens SITRANS LR460 Operating Instructions Manual

Communications via PROFIBUS PA

D.1

Communication via PROFIBUS PA

SITRANS LR460 is a Profile Version 3.01, Class B, PA device. It supports Class 1 Master for
cyclic and acyclic data exchange, and Class 2 for acyclic services. The full range of SITRANS
LR460 functions is available only over a PROFIBUS PA network.
PROFIBUS PA is an open industrial protocol. Full details about PROFIBUS PA can be obtained
from PROFIBUS International at www.profibus.com (www.profibus.com).
Device configuration tool
To use PROFIBUS PA, you will need a PC configuration tool: we recommend SIMATIC PDM.
Please consult the operating instructions or online help for details on using SIMATIC PDM.
SIMATIC PDM
SIMATIC PDM is a software package used to commission and maintain SITRANS LR460 and
other process devices. For more detail, see Operating SITRANS LR460 via SIMATIC PDM
(Page 56).
Device description
In order to use Process Device Manager (PDM) with PROFIBUS PA, you will need the Device
Description for SITRANS LR460. To configure your device and load the newest version of the
Device Description (DD), see Quick start wizard via SIMATIC PDM (Page 49).
Network configuration
To configure a PROFIBUS Class 1 Master (for example, a PLC), you will need a GSD file.
The GSD file
The GSD file SIEM8132.gsd is available from the SITRANS LR460 product page on our web
site. Go to Product page (www.siemens.com/lr460) and click Downloads.
Bus termination
PROFIBUS PA MUST be terminated at both extreme ends of the cable for it to work properly.
Please refer to the PROFIBUS PA User and Installation Guidelines (order number 2.092),
available from www.profibus.com (www.profibus.com).
Power demands
To determine how many devices can be connected to a bus line, calculate the combined
maximum current consumption of all the connected devices: 10.5 mA for SITRANS LR460.
Allow a current reserve for safety.
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Operating Instructions, 10/2021, A5E42035355-AB
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SITRANS LR460