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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
SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010
1
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Summary of Contents for Siemens SIWAREX MS
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Page 1: Table Of Contents
For modules with order number 7MH4930-0AA01 Contents Hardware Requirements ....................3 Siwarex MS connections ....................6 Establish the communication to the Siwarex MS module ..........8 Adjustment with an adjustment weight................9 Set the SIWATOOL parameters................9 Adjustment procedure ..................12 Adjustment without an adjustment weight (theoretical adjustment) ......14 Create a Siwatool backup file ..................18... - Page 2 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...
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Page 3: Hardware Requirements
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. - Page 4 Configuration Package for SIWAREX MS: 7MH4930-0AK01 Adjustment weight Scale ( >5% of the sum of the nominal value of all load cells) ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010...
- Page 5 System Configuration ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010...
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Page 6: Siwarex Ms Connections
2. Siwarex MS connections Load Cell Connection: Connection and signal Comment designations SEN+ Sense line + SEN- Sense line – SIG+ Measurement line + SIG- Measurement line – EXC+ Load cell supply + EXC- Load cell supply - ©Siemens AG... - Page 7 Connecting the PC for SIWATOOL MS: ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010...
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Page 8: Establish The Communication To The Siwarex Ms Module
3. Establish the communication to the Siwarex MS module Start the Siwatool MS software into Windows: For establishing the communication between the Siwarex MS module and the Siwatool software, click the button Online: ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010... -
Page 9: Adjustment With An Adjustment Weight
- the parameter “Numeral step” (index card “Scales parameter”) is set to “1”. - the parameter “Decimal point” (index card “Scales parameter”) is set to “2”. - the parameter “Weight unit” (index card “Scales parameter”) is set to “kg”. ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010... - Page 10 The weight is measured according to the average value of n weight values. If n = 10, 10 weight values will be used for calculating the average value. The earliest value is discarded every 20 milliseconds and the latest value will be added for the calculation. ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010...
- Page 11 The zeroing range is between -20 kg (-1% of 2000) and +60 kg (+3% of 2000). Zeroing will be rejected if the current gross weight is too high or too low. After setting the parameters, click Send to send the changed parameters to the Siwarex MS module: ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010...
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Page 12: Adjustment Procedure
Ensure that the scale is empty (not loaded) and execute the command Adjustment zero valid (3). The Siwarex MS module shows now the weight value “0”. 7 Calibration Procedure Ensure that the scale is empty (not loaded) and click Adjustment zero valid (3). - Page 13 Afterwards, place the adjustment weight on the scale and execute the command Adjustment weight 1 valid (4). With executing of this command, the adjustment line is detected of the scale. The Siwarex MS module shows now the adjustment weight. Adjustment Weight The adjustment is completed now.
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Page 14: Adjustment Without An Adjustment Weight (Theoretical Adjustment)
The execution of the theoretical adjustment is handled with the help of the SIWATOOL MS software. First, the "Characteristic value" (e.g. “2 mV/V”) must be defined in the DR3, index card: "Calibration": ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010... - Page 15 (See also step “2.” and “3.” in the picture below) These values are taken from the respective load cell measuring log. If the measuring logs aren’t available, the default-values can be used, e.g. “Zero offset in uV/V” = “0” and “Characteristic value” = “2.0”: ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010...
- Page 16 Then, the calculated adjustment digits can be integrated into the DR3 by actuating the button "Accept calculation": The DR3 is then sent to the weight module with the new adjustment data with the button "Send": ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010...
- Page 17 After sending the DR3, the command “Characteristic curve shift (15)" has to be executed, when the scale is empty. The theoretical adjustment is now finished. ©Siemens AG SIWAREX_MS_Quick Guide_V4.0.doc, 12/2010...
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Page 18: Create A Siwatool Backup File
6. Create a Siwatool backup file Eventually you may save all parameter settings of the Siwarex MS module into a file Receive all data from the Siwarex MS module the Siwatool software: During the transmission from the Siwarex MS module to the PC, the following message-... - Page 19 (for any method, product or equipment) or implication by or from Siemens AG. Partial or full replication or translation of this document without written permission from Siemens AG is illegal.