Siemens SIWAREX WP231 User manual

SIWAREX WP231
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Weighing systems
Electronic weighing system
SIWAREX WP231
Manual
07/2014
A5E31238908A-02
Introduction
1
Safety notes
2
Description
3
Application planning
4
Mounting
5
Connection
6
Commissioning
7
Scale parameters and
functions
8
Messages
9
Command lists
10
Communication
11
Operation requiring
verification
12
Technical data
13
Accessories
14
ESD guidelines
A
List of abbreviations
B

Siemens AG
Division Digital Factory
Postfach 48 48
90026 NÜRNBERG
GERMANY
Order number: A5E31238908A
Ⓟ12/2014 Subject to change
Copyright © Siemens AG 2012 - 2014.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury
will
result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury
may
result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

SIWAREX WP231
Manual, 07/2014, A5E31238908A-02 3
Table of contents
1 Introduction........................................................................................................................................... 13
1.1 Purpose of the manual............................................................................................................13
1.2 Basic knowledge required.......................................................................................................13
1.3 Manual - range of validity........................................................................................................13
1.4 Technical support....................................................................................................................13
2 Safety notes.......................................................................................................................................... 15
2.1 General safety instructions .....................................................................................................15
3 Description............................................................................................................................................ 17
3.1 Product overview ....................................................................................................................17
3.2 Information about previous versions.......................................................................................17
3.3 Calibration ability.....................................................................................................................17
3.4 Area of application ..................................................................................................................18
3.5 System integration in SIMATIC...............................................................................................19
3.6 Customer benefits...................................................................................................................20
3.7 Scope of delivery ....................................................................................................................20
4 Application planning.............................................................................................................................. 21
4.1 Functions ................................................................................................................................21
4.2 Parameter assignment options ...............................................................................................22
4.2.1 Parameter assignment with the PC ........................................................................................22
4.2.2 Parameter assignment with a SIMATIC Panel .......................................................................23
4.2.3 Parameter assignment by means of the Modbus interface ....................................................23
5 Mounting............................................................................................................................................... 25
5.1 Installation guideline ...............................................................................................................25
5.2 EMC-compliant setup..............................................................................................................25
5.2.1 Introduction .............................................................................................................................25
5.2.2 Possible effects of interference...............................................................................................25
5.2.3 Coupling mechanisms.............................................................................................................26
5.2.4 Five basic rules for securing EMC ..........................................................................................26
5.3 Mounting on the SIMATIC S7-1200........................................................................................28

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6 Connection ........................................................................................................................................... 29
6.1 Overview ................................................................................................................................ 29
6.2 24 V connection ..................................................................................................................... 30
6.3 Connecting the load cells....................................................................................................... 30
6.4 Shield connection................................................................................................................... 32
6.5 Connection of digital outputs (4 x DQ)................................................................................... 35
6.6 Connection of digital inputs (4 x DI)....................................................................................... 36
6.7 Connection of the analog output (1 x AQ) ............................................................................. 37
6.8 Connection of RS485 serial interface .................................................................................... 38
6.9 Connection of Siebert display via RS485 .............................................................................. 39
6.10 Connection of the Ethernet interface ..................................................................................... 40
6.11 Activation of write protection .................................................................................................. 41
6.12 Mounting of the calibration protection plate ........................................................................... 42
7 Commissioning ..................................................................................................................................... 43
7.1 Introduction ............................................................................................................................ 43
7.2 Factory-set parameters.......................................................................................................... 43
7.3 Factory setting of the mode selector...................................................................................... 44
7.4 Commissioning tools.............................................................................................................. 44
7.5 5 minute quick start with the operator panel and the Ready-for-Use software...................... 45
7.5.1 Start........................................................................................................................................ 45
7.5.2 Standard parameter settings.................................................................................................. 46
7.5.3 Selecting the calibration method............................................................................................ 47
7.5.4 Defining the calibration weights ............................................................................................. 48
7.5.5 Setting calibration points........................................................................................................ 49
7.5.6 Calibrating the scale automatically ........................................................................................ 50
7.5.7 Performing the automatic calibration ..................................................................................... 51
7.5.8 Checking the scale following calibration ................................................................................ 51
7.6 5 minute quick setup with SIWATOOL................................................................................... 52
7.6.1 Activate service mode............................................................................................................ 52
7.6.2 Load standard parameters..................................................................................................... 52
7.6.3 Input of required parameters.................................................................................................. 53
7.6.4 Complete automatic calibration.............................................................................................. 53
7.6.5 Receive all data...................................................................................................................... 54
7.6.6 Checking the scale following calibration ................................................................................ 54

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7.7 Service with the SIWATOOL program ....................................................................................55
7.7.1 Windows and functions of SIWATOOL...................................................................................55
7.7.2 Offline parameter assignment.................................................................................................56
7.7.3 IP address for SIWAREX ........................................................................................................56
7.7.3.1 Entering a known SIWAREX IP address ................................................................................57
7.7.3.2 Determining an unknown IP address......................................................................................57
7.7.3.3 Setting up a network ...............................................................................................................57
7.7.4 Online parameter assignment.................................................................................................57
7.7.5 Available help options.............................................................................................................58
7.7.6 Entering parameters with SIWATOOL....................................................................................58
7.7.7 Recording scale traces ...........................................................................................................59
7.7.8 Firmware update .....................................................................................................................60
7.7.9 Reading out the saved scale logs...........................................................................................62
8 Scale parameters and functions ............................................................................................................ 63
8.1 Parameters and functions.......................................................................................................63
8.2 DR 2 command code ..............................................................................................................64
8.3 DR 3 calibration parameters ...................................................................................................64
8.3.1 Overview .................................................................................................................................64
8.3.2 Scale name .............................................................................................................................68
8.3.3 Unit of weight ..........................................................................................................................68
8.3.4 Gross identifier........................................................................................................................68
8.3.5 Code for regulations................................................................................................................68
8.3.6 Minimum weighing range........................................................................................................69
8.3.7 Maximum weighing range.......................................................................................................69
8.3.8 Calibration weights 0, 1, 2 and calibration digits 0, 1, 2 .........................................................69
8.3.9 Scale interval ..........................................................................................................................69
8.3.10 Zero by power-on....................................................................................................................69
8.3.11 Zero by power-on when tare ≠ 0.............................................................................................70
8.3.12 Automatic zero adjustment .....................................................................................................70
8.3.13 Subtractive / additive tare device............................................................................................70
8.3.14 Weight simulation....................................................................................................................71
8.3.15 Decimal places for process values .........................................................................................71
8.3.16 Maximum tare load .................................................................................................................71
8.3.17 Maximum negative zero setting limit (power-on) ....................................................................71
8.3.18 Maximum positive zero setting limit (power-on) .....................................................................71
8.3.19 Maximum negative zero setting limit (semi-automatically) .....................................................72
8.3.20 Maximum positive zero setting limit (semi-automatically).......................................................72
8.3.21 Standstill range .......................................................................................................................73
8.3.22 Standstill time..........................................................................................................................73
8.3.23 Standstill waiting time .............................................................................................................74
8.3.24 Low-pass filter limit frequency ................................................................................................74
8.3.25 Low-pass filter number............................................................................................................74
8.3.26 Low-pass filter limit frequency (commissioning) .....................................................................75
8.3.27 Low-pass filter number (commissioning) ................................................................................75
8.3.28 Mean value filter depth............................................................................................................75
8.3.29 Display weighing range data...................................................................................................75
8.3.30 Interface for legal trade display...............................................................................................75
8.3.31 Firmware version SecureDisplay ............................................................................................75
8.3.32 Minimum display size [%]........................................................................................................76

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8.4 Calibration procedure............................................................................................................. 77
8.4.1 Calibration with calibration weights........................................................................................ 77
8.4.2 Automatic calibration.............................................................................................................. 80
8.5 DR 4 Output of calculated calibration digits........................................................................... 81
8.5.1 Calibration digits 0, 1, 2 (calculated)...................................................................................... 81
8.6 DR 5 zeroing memory ............................................................................................................ 82
8.6.1 Effective tare weight - from specification 1, 2 or 3 ................................................................. 83
8.6.2 Effective tare weight (semi-automatic)................................................................................... 83
8.6.3 Zero by power-on (value when switching on) ........................................................................ 83
8.6.4 Zero weight (semi-automatic) ................................................................................................ 83
8.6.5 Current zero tracking weight .................................................................................................. 83
8.6.6 Dead load............................................................................................................................... 83
8.7 DR 6 limit value settings ........................................................................................................ 84
8.7.1 Limit value 1 ON, limit value 2 ON, limit value 1 OFF, limit value 2 OFF .............................. 86
8.7.2 Delay time for limit value 1 ON, delay time for limit value 2 ON ............................................ 86
8.7.3 Delay time for limit value 1 OFF, delay time for limit value 2 OFF ........................................ 86
8.7.4 Limit value "Empty" ON.......................................................................................................... 87
8.7.5 Delay time for limit value "Empty" ON.................................................................................... 87
8.8 DR 7 interface parameters..................................................................................................... 88
8.8.1 Assignment for digital input 0, 1, 2, 3..................................................................................... 92
8.8.2 Input filtering (hardware setting) ............................................................................................ 92
8.8.3 Assignment for digital output 0, 1, 2, 3 .................................................................................. 92
8.8.4 Response of digital outputs to faults or SIMATIC STOP ....................................................... 93
8.8.5 Substitute value for DQ 0, 1, 2, 3 following fault or SIMATIC STOP ..................................... 93
8.8.6 Analog output range............................................................................................................... 94
8.8.7 Analog output source ............................................................................................................. 94
8.8.8 Response of analog output to faults or SIMATIC STOP........................................................ 94
8.8.9 Start value for the analog output............................................................................................ 94
8.8.10 End value for the analog output ............................................................................................. 94
8.8.11 Output value following fault or SIMATIC STOP ..................................................................... 95
8.8.12 Trace recording cycle............................................................................................................. 95
8.8.13 Trace storage method............................................................................................................ 95
8.9 DR 8 date and time ................................................................................................................ 96
8.10 DR 9 module information ....................................................................................................... 97
8.11 DR 10 load cell parameters ................................................................................................... 99
8.11.1 Overview ................................................................................................................................ 99
8.11.2 50/60 Hz toggling ................................................................................................................. 100
8.11.3 Number of support points..................................................................................................... 100
8.11.4 Load cell characteristic value............................................................................................... 100
8.11.5 Rated load of a load cell ...................................................................................................... 100
8.12 DR 12 Ethernet parameters ................................................................................................. 101
8.12.1 Overview .............................................................................................................................. 101
8.12.2 Device MAC address ........................................................................................................... 102
8.12.3 Port MAC address................................................................................................................ 102
8.12.4 IP address ............................................................................................................................ 102
8.12.5 Subnet mask ........................................................................................................................ 102
8.12.6 Gateway ............................................................................................................................... 102
8.12.7 Device name ........................................................................................................................ 102

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8.13 DR 13 RS485 parameters ....................................................................................................103
8.13.1 Overview ...............................................................................................................................103
8.13.2 RS485 protocol .....................................................................................................................104
8.13.3 RS485 baud rate...................................................................................................................104
8.13.4 RS485 character parity .........................................................................................................105
8.13.5 RS485 number of data bits ...................................................................................................105
8.13.6 RS485 number of stop bits ...................................................................................................105
8.13.7 RS485 Modbus address .......................................................................................................105
8.13.8 Decimal place for Siebert indicator .......................................................................................105
8.14 DR 14 SIMATIC interface parameters ..................................................................................106
8.14.1 Overview ...............................................................................................................................106
8.14.2 Selection of process value 1, 2.............................................................................................107
8.15 DR 15 tare settings ...............................................................................................................108
8.15.1 Overview ...............................................................................................................................108
8.15.2 Specification of tare weight 1, 2, 3........................................................................................108
8.16 DR 16 simulation value.........................................................................................................110
8.16.1 Overview ...............................................................................................................................110
8.16.2 Weight simulation specification.............................................................................................110
8.17 DR 17 analog output control specifications ..........................................................................111
8.17.1 Overview ...............................................................................................................................111
8.17.2 Analog output specification...................................................................................................111
8.18 DR 18 digital output control specifications............................................................................112
8.18.1 Overview ...............................................................................................................................112
8.18.2 Specification for digital output 0, 1, 2, 3................................................................................113
8.19 DR 30 current process values ..............................................................................................114
8.19.1 Overview ...............................................................................................................................114
8.19.2 Gross process weight ...........................................................................................................116
8.19.3 Net process weight ...............................................................................................................116
8.19.4 Tare process weight..............................................................................................................116
8.19.5 Gross / net weight .................................................................................................................117
8.19.6 Gross / net weight with increased resolution (x 10)..............................................................117
8.19.7 Tare weight ...........................................................................................................................117
8.19.8 Gross process weight (commissioning aid) ..........................................................................117
8.19.9 Net process weight (commissioning aid) ..............................................................................117
8.19.10 Refresh counter for process values ......................................................................................117
8.19.11 Last report ID ........................................................................................................................117
8.20 DR 31 advanced current process values..............................................................................118
8.20.1 Overview ...............................................................................................................................118
8.20.2 Unfiltered digit value .............................................................................................................119
8.20.3 Filtered digit value.................................................................................................................119
8.20.4 Filtered digit value (commissioning aid)................................................................................119
8.20.5 Digits for analog output.........................................................................................................119
8.20.6 Current status of input 0, 1, 2, 3 ...........................................................................................119
8.20.7 Current status of digital output 0, 1, 2, 3...............................................................................120
8.20.8 Refresh counter for process values ......................................................................................120
8.20.9 Current load cell signal in mV ...............................................................................................120

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8.21 DR 32 display of data and operator errors........................................................................... 121
8.21.1 Overview .............................................................................................................................. 121
8.21.2 Data and operator errors, bytes 0 to 7................................................................................. 123
8.21.3 Modbus RTU error code ...................................................................................................... 123
8.21.4 Modbus Ethernet error code ................................................................................................ 123
8.21.5 SIWATOOL error code......................................................................................................... 123
8.21.6 Error code following commands at digital input ................................................................... 123
8.22 DR 34 ASCII main display value.......................................................................................... 124
8.22.1 Overview .............................................................................................................................. 124
8.22.2 Content of main display as ASCII string .............................................................................. 125
8.23 DR 45 protocol request ........................................................................................................ 126
8.23.1 Overview .............................................................................................................................. 126
8.23.2 Protocol ID to be read .......................................................................................................... 126
8.24 DR 46 protocol contents ...................................................................................................... 127
8.24.1 Overview .............................................................................................................................. 127
8.24.2 Oldest protocol ID ................................................................................................................ 128
8.24.3 Newest protocol ID............................................................................................................... 128
8.24.4 Selected protocol ID, numeric.............................................................................................. 128
8.24.5 Gross / net identifier............................................................................................................. 128
8.24.6 G/N weight ........................................................................................................................... 128
8.24.7 Unit of weight ....................................................................................................................... 129
8.24.8 Tare identification................................................................................................................. 129
8.24.9 Date, time............................................................................................................................. 129
8.25 DR 47 logbook ..................................................................................................................... 130
8.26 DR 48 date and time 2 (for Modbus).................................................................................... 131
9 Messages ............................................................................................................................................133
9.1 Message types ..................................................................................................................... 133
9.2 Message paths..................................................................................................................... 133
9.3 Evaluating messages with the help of SIWATOOL ............................................................. 134
9.4 Detecting messages with the help of FB SIWA ................................................................... 134
9.5 Message list ......................................................................................................................... 134
9.5.1 System status message list ................................................................................................. 135
9.5.2 Technology error message list............................................................................................. 135
9.5.3 Data and operating errors message list............................................................................... 135
9.5.4 Messages by LEDs on the module ...................................................................................... 137

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10 Command lists .................................................................................................................................... 139
10.1 Overview ...............................................................................................................................139
10.2 Command lists ......................................................................................................................140
10.3 Command groups of the SIWAREX WP231.........................................................................144
11 Communication................................................................................................................................... 145
11.1 Integration in SIMATIC S7-1200...........................................................................................145
11.1.1 General information ..............................................................................................................145
11.1.2 Creating the hardware configuration.....................................................................................146
11.1.3 Calling of function block........................................................................................................148
11.1.4 Working with the function block ............................................................................................149
11.1.5 I/O interface of function block ...............................................................................................151
11.1.6 Error codes of function block ................................................................................................152
11.2 Communication via Modbus .................................................................................................153
11.2.1 General information ..............................................................................................................153
11.2.1.1 Principle of data transmission...............................................................................................153
11.2.1.2 Data record concept..............................................................................................................154
11.2.1.3 Command mailboxes ............................................................................................................154
11.2.1.4 Reading registers..................................................................................................................155
11.2.1.5 Writing registers ....................................................................................................................156
12 Operation requiring verification............................................................................................................ 157
12.1 Preparing for verification.......................................................................................................157
12.1.1 Calibration set .......................................................................................................................157
12.1.2 Scale design .........................................................................................................................157
12.1.3 Installation and parameterization of the main SecureDisplay for legal trade in the HMI......157
12.1.4 Parameterization of the scale ...............................................................................................158
12.1.5 Adjustment and preliminary checking of the scale ...............................................................158
12.1.6 Calibration label ....................................................................................................................158
12.2 Verification ............................................................................................................................159
12.2.1 Checking of parameters relevant to the verification .............................................................159
12.2.2 Checking of parameters relevant to the device ....................................................................160
13 Technical data .................................................................................................................................... 163
13.1 Technical specifications ........................................................................................................163
13.2 Electrical, EMC and climatic requirements ...........................................................................169
13.3 Approvals ..............................................................................................................................173
14 Accessories ........................................................................................................................................ 175
A ESD guidelines ................................................................................................................................... 177
A.1 ESD Guidelines.....................................................................................................................177
B List of abbreviations ............................................................................................................................ 179
Index................................................................................................................................................... 181

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10 Manual, 07/2014, A5E31238908A-02
Tables
Table 6- 1 Connection of the 24 V supply .....................................................................................................30
Table 6- 2 Load cell connections on the module...........................................................................................31
Table 6- 3 Connection of the digital outputs..................................................................................................35
Table 6- 4 Connection of the digital inputs ....................................................................................................36
Table 6- 5 Connection of analog output ........................................................................................................37
Table 6- 6 Connection of RS485 serial interface ..........................................................................................38
Table 6- 7 Settings of Siebert display S102 ..................................................................................................39
Table 6- 8 Activation of write protection ........................................................................................................41
Table 8- 1 Assignment of data record 3 ........................................................................................................64
Table 8- 2 Assignment of data record 4 ........................................................................................................81
Table 8- 3 Assignment of data record 5 ........................................................................................................82
Table 8- 4 Assignment of data record 6 ........................................................................................................84
Table 8- 5 Assignment of data record 7 ........................................................................................................88
Table 8- 6 Bit 0 defines digital output 1 (DQ 1) .............................................................................................93
Table 8- 7 Bit 1 defines digital output 2 (DQ 2) .............................................................................................93
Table 8- 8 Assignment of data record 8 ........................................................................................................96
Table 8- 9 Assignment of data record 9 ........................................................................................................97
Table 8- 10 Assignment of data record 10 ......................................................................................................99
Table 8- 11 Assignment of data record 12 ....................................................................................................101
Table 8- 12 Assignment of data record 13 ....................................................................................................103
Table 8- 13 Assignment of data record 14 ....................................................................................................106
Table 8- 14 Selection table for process value 1,2 .........................................................................................107
Table 8- 15 Structure of status of analog output, digital outputs, and digital inputs .....................................107
Table 8- 16 Assignment of data record 15 ....................................................................................................108
Table 8- 17 Assignment of data record 16 ....................................................................................................110
Table 8- 18 Assignment of data record 17 ....................................................................................................111
Table 8- 19 Assignment of data record 18 ....................................................................................................112
Table 8- 20 Assignment of data record 30 ....................................................................................................114
Table 8- 21 Assignment of data record 31 ....................................................................................................118
Table 8- 22 Assignment of data record 32 ....................................................................................................121
Table 8- 23 Assignment of data record 34 ....................................................................................................124
Table 8- 24 Assignment of data record 45 ....................................................................................................126
Table 8- 25 Assignment of data record 46 ....................................................................................................127
Table 8- 26 Assignment of data record 47 ....................................................................................................130
Table 8- 27 Assignment of data record 48 ....................................................................................................131