Siemens SIWAREX MS, 7MH4930-0AA01 Quick Manual

SIWAREX MS
Weighing Module for Level Measurement, Weighbridges etc.
Calibrating SIWAREX MS with SIWATOOL MS

Quick Guide

For modules with order number 7MH4930-0AA01

Contents

1. Hardware Requirements...............................................................................................3

2. Siwarex MS connections ..............................................................................................6

3. Establish the communication to the Siwarex MS module .............................................8

4. Adjustment with an adjustment weight..........................................................................9

4.1 Set the SIWATOOL parameters........................................................................9

4.2 Adjustment procedure.....................................................................................12

5. Adjustment without an adjustment weight (theoretical adjustment)............................14

6. Create a Siwatool backup file .....................................................................................18

©Siemens AG 1
SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010

Introduction

SIWAREX MS is a compact weighing module for SIMATIC Automation System S7-200.
Main applications are bin scales, weighbridges, crane scales, force and tightening torque
measuring.

Purpose of this document for functional safety

This programming manual contains all information that you will require to commission and
use the device.
It is aimed at persons who install the device mechanically, connect it 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 solely applicable 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 with the manual SIWAREX MS. This
manual is available on the Siemens homepage.

http://support.automation.siemens.com/WW/view/en/22600601

©Siemens AG 2
SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010

1. Hardware Requirements

Following hardware parts and software are requested to integrate a scale into SIMATIC
S7-200: SIWAREX MS module, 24V Power Module, S7-200 CPU, SIWATOOL MS
configuration package, RS232 cable, computer with Windows XP or higher and a
calibration weight bigger than 5% of the sum of the nominal value of all load cells.

24V Power Supply SIMATIC CPU S7-200 SIWAREX MS
7MH4930-0AA01

SIWATOOL RS232 Cable
7MH4607-8CA

©Siemens AG 3
SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010

Configuration Package for SIWAREX MS:
7MH4930-0AK01

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

©Siemens AG 4
SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010

System Configuration

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SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010

2. Siwarex MS connections

Load Cell Connection:

Connection and signal

designations

SEN+

SEN-

SIG+

SIG-

EXC+

EXC-

Sense line +

Sense line –

Measurement line +

Measurement line –

Load cell supply +

Load cell supply -

Comment

©Siemens AG 6
SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010