Siwarex

SIWAREX U Weighing Module for Level Measurement Calibrating SIWAREX U with SIWATOOL U
Quick Guide
For modules with order number 7MH4950-1AA01 and 7MH4950-2AA01 (also valid for 7MH4601-1AA01 and 7MH4601-1BA01)

Contents
1. 2. 3. 4. 5. 6. Hardware Requirements ...............................................................................................3 Siwarex U connections.................................................................................................6 Establish the communication to the Siwarex U module ................................................8 Adjustment with an adjustment weight..........................................................................9 4.1 Set the SIWATOOL parameters..............................................................................9 4.2 Adjustment procedure ...........................................................................................12 Adjustment without an adjustment weight (theoretical adjustment) ............................14 Create a Siwatool backup file .....................................................................................18

©Siemens AG SIWAREX_U_Quick Guide_V4.0.doc, 01/20111

Introduction
SIWAREX U is a compact weighing module for measuring the level of silos and bunkers, monitoring crane loads, load measurement on conveyor belts etc.

Purpose of this document for functional safety
This programming manual contains important information that you will require to commission and use the device. It is aimed at persons who install the device mechanically, connectit electrically, parameterize and commission it, as well as at service and maintenance engineers.

Notes on warranty
The contents of this programming manual shall not become part of or modify any prior or existing agreement, commitment or legal relationship. All obligations on the part of Siemens AG are contained in the respective sales contract, which also contains the complete and solelyapplicable warranty conditions. Any statements on the device versions described in the programming manual do not create new warranties or modify the existing warranty. The content reflects the technical status at the time of printing. We reserve the right to make technical changes in the course of further development.

Validation of this document
This documentation is only valid in conjunction withthe manual SIWAREX U. This manual is available on the Siemens homepage. http://support.automation.siemens.com/WW/view/en/28392477

©Siemens AG SIWAREX_U_Quick Guide_V4.0.doc, 01/2011

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1.

Hardware Requirements

Following hardware parts and software are requested to integrate a scale in SIMATIC. 24V Power supply, S7-300 CPU or ET200M Station, memory card for CPU, SIWAREX U, frontconnector for SIWAREX U, SIWATOOL U software, RS232 cable, computer with Windows XP or higher and a calibration weight higher than 5% of the sum of the nominal value of all load cells.

24V Power Supply

S7-315 PLC

or

ET 200M

SIWAREX U 7MH4950-1AA01

SIWATOOL RS232 Cable 7MH4607-8CA

Configuration Package for SIWAREX U 7MH4950-1AK01

©Siemens AG SIWAREX_U_Quick Guide_V4.0.doc,01/2011

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Adjustment weight ( > 5% of the sum of the nominal value of all load cells)

Scale

©Siemens AG SIWAREX_U_Quick Guide_V4.0.doc, 01/2011

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System Configuration

Load cells

©Siemens AG SIWAREX_U_Quick Guide_V4.0.doc, 01/2011

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2.

Siwarex U connections

24V Power supply RS232 interface for Siwatool

Connection terminal of the sensor Channel 2

Connectionterminal of the sensor Channel 1

©Siemens AG SIWAREX_U_Quick Guide_V4.0.doc, 01/2011

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Connection of load cells channel 1
Terminal 15 16 17 18 19 20 Signal Name SENSE1+ SENSE1SIG1+ SIG1EXC1+ EXC1Comment Sensor line + Sensor line – Measurement line + Measurement line – Load cell supply + Load cell supply –

Connection of load cells channel 2
Terminal 8 9 10 11 12 13 Signal Name...