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Siemens SIWAREX WP321 Manual

Electronic weighing system
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SIWAREX WP321
Weighing systems
Electronic weighing system
SIWAREX WP321
Manual
07/2014
A5E33715669A-02
___________________
Introduction
___________________
Safety notes
___________________
Description
___________________
Application planning
___________________
Mounting
___________________
Connection
___________________
Commissioning
___________________
Scale parameters and
functions
___________________
Messages
___________________
Command lists
___________________
Communication in SIMATIC
S7-300/1200/1500
___________________
Technical data
___________________
Accessories
___________________
Appendix
___________________
ESD guidelines
___________________
List of abbreviations
1
2
3
4
5
6
7
8
9
10
11
12
13
A
B
C

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Summary of Contents for Siemens SIWAREX WP321

  • Page 1 ___________________ SIWAREX WP321 Introduction ___________________ Safety notes ___________________ Weighing systems Description ___________________ Application planning Electronic weighing system SIWAREX WP321 ___________________ Mounting ___________________ Connection Manual ___________________ Commissioning ___________________ Scale parameters and functions ___________________ Messages ___________________ Command lists ___________________ Communication in SIMATIC...
  • Page 2 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.

  • Page 3: Table Of Contents

    Configuration of the hardware in SIMATIC ................24 Connection ............................25 24 V connection ........................26 Connecting the load cells ......................26 Shield connection ........................28 Connection of RS485 serial interface ..................29 Connection of Siebert display via RS485 ................30 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 4 Standstill range ........................51 8.3.13 Standstill time ......................... 51 8.3.14 Standstill waiting time ......................52 8.3.15 Low-pass filter limit frequency ....................52 8.3.16 Low-pass filter number ......................52 8.3.17 Mean value filter depth ......................53 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 5 Refresh counter for process values ..................78 8.15 DR 32 Message display ......................79 8.15.1 Error bytes 0 to 7 ........................81 8.16 DR 34 ASCII main display value ..................... 82 8.16.1 Content of main display as ACII string ..................83 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 6 12.3 Approvals ..........................114 Accessories ............................115 Appendix ............................. 119 Technical support ......................... 119 ESD guidelines ............................ 121 ESD Guidelines ........................121 List of abbreviations ..........................123 List of abbreviations ......................123 Index ..............................125 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 7 Assignment of data record 32 ...................... 79 Table 8- 14 Assignment of data record 34 ...................... 82 Table 10- 1 Command groups of the SIWAREX WP321 ................93 Table 11- 1 Memory requirements of the function block ................. 95 Table 11- 2 I/O data of the function block .....................
  • Page 8 SIWATOOL overview ........................18 Figure 5-1 Installation of the I/O or SIWAREX modules................23 Figure 6-1 SIWAREX WP321 process terminals on the base unit ..............25 Figure 6-2 Shielding in the screw gland ......................27 Figure 6-3 Shield connection and shield terminal ..................28 Figure 6-4 Connection of Siebert display S102 .....................

  • Page 9: Introduction

    Purpose of the manual This manual contains all the necessary information on setting up, installing, wiring and commissioning the SIWAREX WP321 electronic weighing system. Basic knowledge required Knowledge of weighing technology as well as general knowledge of the SIMATIC system including the TIA Portal are necessary in order to understand the manual.
  • Page 10 Introduction 1.3 Manual - range of validity SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 11: Safety Notes

    The specifications of the manual for the SIMATIC ET 200SP system apply for configuration, installation and commissioning in the SIMATIC environment. This chapter includes additional information on hardware configuration, installation and preparation for operation of the SIWAREX WP321. The safety notes must be observed. Note The device was developed, manufactured, tested and documented in compliance with the relevant safety standards.

  • Page 12: It Security

    2.2 IT Security IT Security Siemens provides automation and drive products with industrial security functions that support the secure operation of plants or machines. They are an important component in a holistic industrial security concept. With this in mind, our products undergo continuous development.

  • Page 13: Description

    Description Product overview SIWAREX WP321 is a versatile and flexible weighing module that can be operated as a static weighing instrument. The electronic weighing system can be used in SIMATIC ET 200SP and uses all features of a modern automation system, such as integrated communication, operation and monitoring, the diagnostics system as well as the configuration tools in the TIA Portal or SIMATIC Step7 and WinCC flexible.

  • Page 14: Figure 3-1 System Overview

    Description 3.3 System integration in SIMATIC Figure 3-1 System overview SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 15: Customer Benefits

    ● Automatic calibration is possible without the need for calibration weights ● Module replacement is possible without recalibrating the scale ● Use in Ex Zone 2 / ATEX approval ● Intrinsically safe load cell supply for Ex Zone 1 (SIWAREX IS option) ● Diagnostics functions SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 16: Scope Of Delivery

    Description 3.5 Scope of delivery Scope of delivery The scope of supply consists of the SIWAREX WP321 weighing module. Required accessories → Accessories (Page 115) Note The SIWAREX WP321 configuration package is required for configuration of the SIWAREX WP321 electronic weighing system → Accessories (Page 115). The configuration package is not included in the scope of delivery of the module.

  • Page 17: Application Planning

    The integration in SIMATIC gives you the option to process the weight value directly in the PLC (ProgrammabelLogic Controller). The SIWAREX WP321 is calibrated at the factory. This allows for automatic calibration of the scale without the need for calibration weights and replacement of modules without the need for recalibrating the scale.

  • Page 18: Parameter Assignment Options

    You require an RS485/USB converter (see Accessories (Page 115)). 4.2.2 Parameter assignment with the SIMATIC Panel SIWAREX WP321 parameters can be assigned using a SIMATIC Panel connected to the SIMATIC CPU. The "Ready-for-use" application software is used for this. SIWAREX WP321...

  • Page 19: Mounting

    SIMATIC ET 200SP must be observed (see system manual "SIMATIC ET 200SP, ET 200SP distributed I/O system", order no.: A5E03576848). This manual describes additional installation and wiring aspects specific to the electronic weighing system. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 20: Emc-Compliant Setup

    Depending on the propagation medium (conducted or non-conducted) and the distance between the interference source and the device, interferences can enter the faulty device through four different coupling mechanisms: ● Electrical coupling ● Capacitive coupling ● Inductive coupling ● Radiation coupling SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 21: Five Basic Rules For Securing Emc

    ● Always use metal/metalized connector housings only for shielded data cables. Rule 4: Special EMC measures ● All inductors that are to be controlled should be connected with suppressors. ● For cabinet lighting in the immediate range of your controller, use interference suppressed fluorescent lamps. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 22 ● Create a homogeneous reference potential and ground all electrical equipment. ● Use sufficiently dimensioned equipotential bonding conductors if potential differences exist or are expected between your system components. Equipotential bonding is absolutely mandatory for applications in hazardous areas. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 23: Mounting On The Simatic Et 200Sp

    The module is snapped onto the ET 200SP base unit (BU). You must use base units of type A0 (→ Accessories (Page 115)). The load cells, power supply and serial interfaces are connected via the terminal box. Figure 5-1 Installation of the I/O or SIWAREX modules SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 24: Configuration Of The Hardware In Simatic

    PN head-end, or up to 15 modules with the Profibus version. Observe the system conditions when planning the configuration. Each SIWAREX electronic weighing system requires 16 bytes of the I/O area. Address assignment is carried out in the TIA Portal or in the SIMATIC Manager during hardware configuration. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 25: Connection

    Connection All external connections are made via the terminal box. Figure 6-1 SIWAREX WP321 process terminals on the base unit SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 26: 24 V Connection

    (the load cells must be connected in parallel). If the distance of a load cell to the SIWAREX WP321 or the junction box is greater than the available length of the load cell connection cable, use the SIWAREX EB extension box.

  • Page 27: Figure 6-2 Shielding In The Screw Gland

    We recommended that you use the cables listed in chapter Accessories (Page 115). 4. The shield must be applied to the ground in close proximity to the SIWAREX WP321. The maximum distance between the SIWAREX WP321 and the load cell is relevant when you use the recommended cables.

  • Page 28: Shield Connection

    To avoid interference as a result of these currents, it is imperative to provide a low-impedance connection to the ground. Only use cables equipped with a shielding braid. Shielding density must be at least 80%. Figure 6-3 Shield connection and shield terminal SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 29: Connection Of Rs485 Serial Interface

    RS485 data cable + RS485: D- RS485 data cable - If a SIWAREX WP321 module is connected to SIWATOOL or a Siebert display, insert wire jumpers between the T+ and D+' terminals and between the T- and D-' terminals. SIWAREX WP321...

  • Page 30: Connection Of Siebert Display Via Rs485

    Figure 6-4 Connection of Siebert display S102 The RS485 interface in the DR13 of the SIWAREX WP321 is set as follows: ● Baud rate: 9 600 bit/s ● Character parity: Even ● Number of data bits: 8 ●...

  • Page 31: Commissioning

    If the SIWAREX is only connected to the ET 200SP station, commissioning of the scale can be carried out using the SIWATOOL program. Operator panel and automation system are unnecessary. In the event of a fault, additional SIWATOOL diagnostics functions enable fast analysis of the cause. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 32: 5-Minute Quick Start With The Operator Panel And The Ready-For-Use Software

    Quick Start". You will be guided through the individual tasks for setting the most important parameters. The remaining parameters are factory-set in such a way that they can be used in most cases without any changes. Figure 7-1 Quick start step 1 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 33: Factory Setting Of The Parameters

    The quick start is based on the factory setting of the parameters. Therefore, the previous parameter settings must be reset prior to the quick setup. Service mode must be switched on first. Resetting to the factory setting can then be carried out. Figure 7-2 Quick start step 2 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 34: Selecting The Calibration Method

    With both methods, make sure that the mechanical properties of the scale are flawless prior to calibration. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 35: Defining The Calibration Weights

    Note that the interval between the calibration weights must be at least 2% of the nominal load of the scale. With a 1 000 kg scale, a calibration weight of at least 20 kg must therefore be used. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 36: Setting Calibration Points

    Place "Calibration weight 2" defined in step 4 on the scale construction, and execute the "Set calibration weight 2" command. 4. Calibration of the scale is now complete. Return to the start screen by clicking on the house icon. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 37: Calibrating The Scale Automatically

    If the exact characteristic values are unknown, it is permissible to also use rounded-off numbers (e.g. 1.0 mV/V, 2.0 mV/V). The nominal load of an individual load cell (not the nominal load of the complete scale!) must subsequently be defined. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 38: Performing The Automatic Calibration

    3. If a second known reference weight is available, place it on the scale in addition. Check whether the scale displays the sum of the reference weights. 4. Remove the reference weights from the scale. Check that the display is "0 kg" again. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 39: 5-Minute Quick Start With Siwatool

    The quick setup is based on the standard settings of the weighing module. The factory setting must therefore be reset prior to the quick start. Firstly, service mode is activated; the factory setting is subsequently loaded using the "Load factory setting (11)" command. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 40: Input Of Required Parameters

    ● Rated load of a load cell 7.4.4 Complete automatic calibration ● The scale must be empty (only mechanical dead load). ● Activate the "Automatic Calibration 82" command. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 41: Receive All Data

    3. If a second known reference weight is available, place it on the scale in addition. Check whether the scale displays the sum of the reference weights. 4. Remove the reference weights from the scale. Check that the display is "0 kg" again. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 42: Service With The Siwatool Program

    For sending, receiving and transferring, select the corresponding data record and call the command list with a right mouse click. The complete data record (all parameters of the data record) is always transferred, not just individual parameters. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 43: Offline Parameter Assignment

    SIWATOOL. You can use the "Configure recorder" button to select the data records to be recorded and to set the save parameters. The playback speed can be set using a slider. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 44: Available Help Options

    If several parameters of the data record are to be changed, they are entered consecutively. The data record is subsequently selected in the tree view and sent to the SIWAREX modules using the right mouse button. Parameters are always changed as complete data records, rather than individually. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 45: Scale Parameters And Functions

    (not saved) by the SIWAREX module and a data/operator error is reported. DR 2 command code DR 2 is a special data record used to transfer commands to the SIWAREX module by SIWATOOL. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 46: Dr 3 Calibration Parameters

    (Page 49) Calibration Calibration weight 0 (usually the FLOAT 9 999 999 weights 0, 1, zero point) 2 and cali- Calibration weight 1 FLOAT 9 999 999 bration digits Calibration weight 2 FLOAT 9 999 999 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 47 [in % of max. weigh- roing limit ing range] (Page 50) Standstill Standstill range (in d) FLOAT maximum range number (Page 51) range+ Standstill Standstill time 1 in ms TIME 2 000 10 000 time (Page 51) SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 48: Scale Name

    Entries are not be converted if the unit of weight has changed. Entries must be left-aligned. 8.3.3 Gross identifier The gross identifier specifies the letter, B (for brutto) or G (for gross), to be used in the display for gross weights. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 49: Maximum Weighing Range

    The weighing module accepts any external tare specification which is less than the maximum tare load (percentage of maximum weighing range). Tare commands are also accepted provided that the current gross weight is less than the configured maximum tare load. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 50: Maximum Negative Zeroing Limit

    You can limit the effect of the zeroing function. The limitation is based not on the current weight, but rather on the weight which the scales would display had there been no zeroing (time of scale calibration). SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 51: Standstill Range

    (standstill value) over a specified time (standstill time). Standstill monitoring is used in static scale mode (with the following commands: zeroing, taring). SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 52: Standstill Waiting Time

    0.5 Hz makes the scale "slower". 8.3.16 Low-pass filter number The number of the filter defines the effect of damping. The values 2 and 4 can be set. The higher the selected filter number, the higher the effect. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 53: Mean Value Filter Depth

    (n = max. 250) weights which are recorded by the weighing module every 10 ms, e.g. when n = 10, the mean of 10 weights is calculated. Every 10 ms, the oldest value is discarded and the newest value included in the calculation. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 54: Calibration Procedure

    Calibration weight 1 = 100 kg equals 1324765 digits Load cell characteristic value Calibration digit 1 (ca.) when rated load is 1 mV/V 500 000 2 mV/V 1 000 000 4 mV/V 2 000 000 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 55: Figure 8-3 Calibration Digits And Calibration Weight

    DR 3 and the scale is ready for use immediately. The SIWATOOL program facilitates rapid calibration. Following commissioning and calibration, all data records must be read from the weighing module and saved as a scale file. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 56: Figure 8-4 Linearizing The Scale's Characteristic Curve

    80 kg e.g. 451 367 for calibra- tion digits 2 Rated load of the load cell(s) e.g. 100 kg 1 000 000 +10 % Rated weight + approximately e.g. approximately 110 1 090 000 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 57: Automatic Calibration

    Automatic calibration requires the following criteria: ● Correct mechanical installation of the scale ● Scale is empty (only mechanical installation (= dead load) present on the cells) ● Load cells are evenly loaded ● There are no shunt circuits SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 58: Dr 4 Output Of Calculated Calibration Digits

    Reserve 3 Reserve FLOAT 8.5.1 Calibration digits 0, 1, 2 (calculated) The calculation is based on the parameters from DR 3 and DR 10 identified by bold font and is activated by the command no. 82. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 59: Dr 5 Zeroing Memory

    Dead load Dead load determined FLOAT Depends Depends (Page 60) during calibration on specifi- on specifi- cation in cation in DR 3 DR 3 Reserve 1 Reserve SHORT Reserve 2 Reserve USHORT Reserve 3 Reserve FLOAT SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 60: Effective Tare Weight - From Specification

    The characteristic curve of the scales is determined during calibration. When there is no load, the main display returns "0". The dead load is the weight of the empty scales, i.e. the weight of the scales themselves. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 61: Dr 6 Limit Value Settings

    (Page 63) range) number number range range Reserve Reserve TIME maxi- number range+ Limit value 2 Switch-on point for limit FLOAT maxi- maxi- ON (Page 63) value 2 (% of measuring range) number number range range SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 62 (Page 64) number range+ Reserve Reserve USHORT Reserve Reserve USHORT Reserve Reserve FLOAT Value Limit values relate to Gross weight Net weight The limit value "Empty" always relates to gross weight zero. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 63: Limit Value 1 On, Limit Value 2 On, Limit Value 1 Off, Limit Value 2 Off

    The value for the empty range is a limit value below which the weighing module registers and returns the status "empty". The values are entered as a percentage of the measuring range. The "Empty" limit always refers to the current gross weight in the scale. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 64: Delay Time For Limits

    This delay time applies to the switch-on and switch-off values 1 and 2 and to the switch-on limit for the empty value. The empty value does not have a switch-off delay. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 65: Dr 9 Module Information

    (e.g. 03) OS version String header UBYTE[2] header OS version Reference V - Release CHAR[2] 'V ' (loader) - B - Test designation etc. OS version e.g. version n USHORT 'V ' (loader) - designation SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 66 Scale parameters and functions 8.8 DR 9 module information Variable Note Type Default Min. Max. Reserve Reserve USHORT Reserve 4 FLOAT SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 67: Dr 10 Load Cell Parameters

    Rated load of a load cell FLOAT load cell (Page 68) Reserve Reserve FLOAT Reserve Reserve FLOAT Reserve Reserve SHORT Reserve Reserve USHORT Reserve Reserve FLOAT Parameter for calculation of calibration points with theoretical calibration SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 68: 50/60 Hz Toggling

    Rated load of a load cell The rated load of a load cell is required for checking the maximum weighing range of the scales. The rated load is entered in the specified units of weight. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 69: Dr 13 Rs485 Parameters

    (Page 70) 1: Odd Bit 1 Bit 2 Reserve (13 Reserve bits) Reserve Reserve USHORT Decimal Decimal place for Siebert display SHORT place for Siebert indi- cator (Page 70) Reserve Reserve USHORT Reserve Reserve FLOAT SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 70: Rs485 Protocol

    This parameter defines the character parity for the RS485 interface. Value Character parity Even 8.10.4 Decimal place for Siebert indicator A fixed decimal place must be specified if a Siebert indicator is used. The following values are permitted: 0 ... 4 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 71: Dr 14 Simatic Interface Parameters

    (Page 72) variable to be updated Selection of Code for the USHORT process val- selection of ue 1, 2 the process (Page 72) variable to be updated Reserve 1 Reserve SHORT Reserve 2 Reserve USHORT SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 72: Selection Of Process Value 1, 2

    Tare process FLOAT Legal trade G/N weight FLOAT G/N weight_x10 FLOAT Unfiltered digit value LONG Filtered digit value LONG Refresh counter USHORT Async. error bits (32 bits): LONG Bits 0..15: operator error Bits 16..31: technology error SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 73: Dr 15 Manual Tare Specification

    You can enter a tare weight. If a tare weight is to be applied, it must be enabled with the corresponding command. The tare weight must not exceed the maximum tare load specified in data record DR 3. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 74: Dr 30 Current Process Values

    Standstill Set if standstill condition is Reserve Empty Set if "Empty" condition is met BIT Limit value 1 Limit value 1 has responded Limit value 2 Limit value 2 has responded SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 75 1 if weight values have values been changed (Page 76) Operating time Total operating time of the USHORT (hours) module (hours) Operating time Total operating time of the USHORT (minutes) module (minutes) Reserve 3 Reserve FLOAT SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 76: Gross Process Weight

    Measured values are calculated every 10 ms in the SIWAREX module. A counter is incremented by 1 each time. Once the counter reaches the value 65536, it starts again from zero. The counter can be used as a time stamp for data record DR 30. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 77: Dr 31 Advanced Current Process Values

    Reserve 2 FLOAT 8.14.1 Unfiltered digit value The unfiltered digit value is the internal measured value immediately before filtering. 8.14.2 Filtered digit value The filtered digit value is the internal measured value immediately after filtering. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 78: Refresh Counter For Process Values

    Measured values are calculated every 10 ms in the SIWAREX module. A counter is incremented by 1 each time. Once the counter reaches the value 65536, it starts again from zero. The counter can be used as a time stamp for data record DR 31. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 79: Dr 32 Message Display

    Taring or zeroing timeout Reserve (14 bits) 5000 Data or operating error exists 5001 Command code or data record unknown BIT Reserve 5003 Leaving calibration mode not possible 5004 Command or data transmission only available in service mode SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 80 Standstill range / standstill wait time not plausible 7010 Scale interval / rounding not plausible 7011 Filter parameter not plausible 7014 Time input not plausible Reserve Reserve 7019 RS485 parameter error Reserve USHORT Reserve USHORT Reserve USHORT SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 81: Error Bytes 0 To 7

    The data/operator errors (error numbers 1xxx) are present in the first two bytes. These are followed by two bytes with technology errors (error numbers 2xxx) and six bytes with data and operator errors (error numbers 5xxx and 7xxx). SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 82: Dr 34 Ascii Main Display Value

    Maximum length and actual length UBYTE[2] 16,2 string header of string Content of For display of the weight value and CHAR[16] " " main display other current values (see below) as ACII string (Page 83) SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 83: Content Of Main Display As Acii String

    • • r o r **** Tare display activated (pt) • • • • • 5 0 , 5 0 •kg• Tare display activated • • • • • • 5 0 , 5 0 •kg• SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 84 Scale parameters and functions 8.16 DR 34 ASCII main display value SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 85: Messages

    Technology errors occur spontaneously due to the process flow of a weighing. Status bits, on the other hand, are not messages. The status displays describe the status of the scale during normal operation and can be monitored or evaluated at any time. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 86: Message Paths

    All messages of the SIWAREX module can be completely detected and processed in the controller with the help of the SIWAREX WP321 function block. The messages can be evaluated directly in a signaling system by means of a bit signaling area in the scale data block.

  • Page 87: Message List

    Group message, at least one technology error exists 2001 Taring/zeroing timeout 2001 Taring of scale or set to zero is not possible because a standstill was not reached during the standstill time. The command was discarded. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 88: Data And Operating Errors Message List

    Standstill range or standstill wait time are not plausible. 7010 Scale interval / rounding 7010 Scale interval or selection for rounding to decimal places is not plausible. 7011 Filter parameters 7011 Specification of filter parameters is not plausible. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 89: Messages By Leds On The Module

    Not used Weighing range exceeded Not used Green Load cell(s) ready for operation (LED off = load cells faulty) Not used yellow Rx/Tx EIA-RS485 communication active Not used Green Status of local 24 V supply SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 90 Messages 9.5 Message list SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 91: Command Lists

    10. The calculated characteristic is entered directly in data records 3 and 4 and thus immediately enabled following exe- cution of the command. The scale must be empty when the command is executed. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 92 Tare specification valid Activate specification of tare weight 1016 S7 tare specification valid Activate specification of S7 tare weight The following commands can be triggered in the scale data block SCALE_DB in the area CMD1 to CMD3: SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 93: Table 10- 1 Command Groups Of The Siwarex Wp321

    Command lists Table 10- 1 Command groups of the SIWAREX WP321 Command Description group 1 ... 99 Commands are forwarded from the FB_SIWA via data record DR 2 to the module (scale commands, weighing commands, log commands). The meaning of the commands corresponds to the command list.
  • Page 94 Command lists SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 95: Communication In Simatic S7-300/1200/1500

    Communication in SIMATIC S7-300/1200/1500 11.1 General information A SIWAREX WP321 occupies 16 bytes each in the I/O areas of the CPU. Communication between SIWAREX and SIMATIC CPU is supported by the FB. Table 11- 1 Memory requirements of the function block...

  • Page 96: Advantages Of Task Sharing

    ● It controls communication between the SIMATIC CPU and the SIWAREX module ● It transfers commands and adjustment values to the SIWAREX module according to the process trend ● It prepares the scale data for visualization SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 97: Hardware Configuration Of The Electronic Weighing System

    1200/technology modules/weighing modules of the hardware catalog. The following basic properties of the module are defined during hardware configuration in the TIA Portal. Note that the SIWAREX WP321 module is always completely in the process image of the CPU. ● Installation location of the module ●...

  • Page 98: Figure 11-2 Start Address Of Module In Tia Portal

    SIMATIC CPU used (S7-300, S7-400, S7-1200 or S7-1500) → Diagnostics interrupts (Page 105) and Hardware interrupts (Page 105) Figure 11-3 Configuration of interrupts in TIA Portal Figure 11-4 HW ID of module in TIA Portal SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 99: Calling Of Function Block

    ● Start address SIWAREX WP321: 1 (see → Hardware configuration of the electronic weighing system (Page 97)) ● HW ID SIWAREX WP321: 280 (see → Hardware configuration of the electronic weighing system (Page 97)) ● Instance data block number of SIWAREX WP321 function block: DB321 The function block can be integrated at the desired position in the user program using drag and drop.

  • Page 100: Working With The Function Block

    In addition, the three command mailboxes are managed and processed according to priority. CMD1 has the highest priority, CMD3 has the lowest priority. If all three command mailboxes are triggered simultaneously by the user program, for example, the function block initially SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 101 The following equation for generation of a corresponding command code applies to the writing of data records from the data block to the SIWAREX: Command code = 4000 + X (X = desired data record number) SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 102 The new calibration weight is now present in the SIWAREX and can be used. Service mode for the module should subsequently be switched off again using command "2". This procedure for reading and writing data records or parameters is identical for all data records. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 103: I/O Interface Of Function Block

    Synchronous data operation error has occurred bo_StartUp Startup synchronization of module running Note If execution of the function block is faulty, the variables shown do not correspond to the actual status in the module. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 104: Diagnostics Messages

    The checksum for the Download factory setting of the integrity of the pa- parameters. rameters is incorrect Checksum error program The checksum for the Download firmware again, replace integrity of the pa- module rameters is incorrect SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 105: Diagnostics Interrupts

    If an event occurs that is to trigger a hardware interrupt and the same previous event has not yet been processed, no further hardware interrupt is triggered. The hardware interrupt is lost. This may lead to the "Hardware interrupt lost" diagnostics interrupt, depending on the parameterization. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 106: Figure 11-7 Configuration Of Hardware Interrupts For S7-1500

    OB as EventType: PRAL #1 Limit 1 OFF → ON PRAL #2 Limit 1 ON → OFF PRAL #3 Limit 2 OFF → ON PRAL #4 Limit 2 ON → OFF SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 107: Technical Data

    35 V DC for 500 ms with a recovery time of 50 s Maximum current consumption 100 mA with 24 V DC Typical power consumption of the module Power supply from SIMATIC S7 backplane bus Power consumption from SIMATIC S7 backplane Typically 20 mA SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 108 Accuracy for module replacement or theoretical calibration decisive Value valid at sensor; voltage drops on cables are compensated up to 5 V Cable length Maximum cable length 500 m with SIWAREX cable, → Accessories (Page 115). SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 109 250 m/s (25G), half sine • transport Test Ea Free fall IEC 61131-2 In product packaging: • 300 mm drop height IEC 60068-2-31: In shipping package: • 1.0 m drop height Test Ec, procedure 1 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 110: Electrical, Emc And Climatic Requirements

    IEC 61131-2 Pollution degree 2 • IEC 61010-1 UL 508 CSA C22.2 No. 145 EN 50156-1 Isolation stability IEC 61131-2 Test voltage: 500 V AC or 707 V DC CSA C22.2, No. 142 UL508 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 111: Table 12- 1 Interference Emission (Industrial Area): En 61000-6-4

    0,15 ... 0.5 MHz, 79 dB (μV) • IEC/CISPR 16-2-1: 2010; EN 55016-2-1: 2009 0,15 ... 0.5 MHz, 66 dB (μV) • 0.5 ... 30 MHz, 73 dB (μV) Q • 0.5 ... 30 MHz, 60 dB (μV) M • SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 112: Table 12- 2 Interference Immunity (Industrial Environment): En 61000-6-2

    Not applicable for shielded cables and symmetrical ports NOTICE Radio interference is possible This is a device of class A. The device may cause radio interference in residential areas. Implement appropriate measures (e.g.: use in 8MC cabinets) to prevent radio interference. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 113: Table 12- 3 Operating Conditions To Iec 60721

    Technical data 12.2 Electrical, EMC and climatic requirements Ambient conditions The use of SIWAREX WP321 is intended under the following conditions in SIMATIC ET 200SP. Table 12- 3 Operating conditions to IEC 60721 Mode IEC60721-3-3 Class 3M3, stationary use, weather-proofed •...

  • Page 114: Approvals

    Technical data 12.3 Approvals 12.3 Approvals Note The current approvals for SIWAREX WP321 can be found on the module rating plate. Guidelines 2004/108/EC "Electromagnetic Compatibility" • In preparation In preparation 94/9/EC ATEX, type of protection II 3 G Ex nA IIC T4 Gc...

  • Page 115: Accessories

    Accessories Table 13- 1 Essential accessories Ordering data Description Order number Essential accessories for SIWAREX WP321 Base unit type BU15+A0+2D (new load group) 6ES7193-6BP00-0DA0 Base unit type BU15+A0+2B (jumpered to left) 6ES7193-6BP00-0BA0 Shield connection 6ES7193-6SC00-1AM0 Table 13- 2 Optional accessories...
  • Page 116 Accessories Ordering data Description Order No. Digital remote display The digital remote displays can be connected directly to the SIWAREX WP321 through the RS485 interface. Suitable remote display: S102 Siebert Industrieelektronik GmbH Postfach 1180 D-66565 Eppelborn, Germany Tel.: 06806/980-0 Fax: 06806/980-999 Internet: Siebert (http://www.siebert-group.com)
  • Page 117 To connect junction box (JB) or extension box • (EB) in hazardous area and Ex interface (Ex- for fixed laying Occasional bending is possible, • blue PVC insulating sheath, approx. 10.8 mm outer diameter For ambient temperature -20 to +70 °C • SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 118 Accessories SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 119: Appendix

    Service & Support on the Internet In addition to our documentation, we offer a comprehensive knowledge base online on the Internet at: Services & Support (http://www.siemens.com/automation/service&support) There you will find: ● The latest product information, FAQs, downloads, tips and tricks.
  • Page 120 Appendix A.1 Technical support Additional Support Please contact your local Siemens representative and offices if you have any questions about the products described in this manual and do not find the right answers. Find your contact partner at: Partner (http://www.automation.siemens.com/partner) A signpost to the documentation of the various products and systems is available at: Documentation (http://www.siemens.com/weighing/documentation)

  • Page 121: Esd Guidelines

    Anyone who is not connected to the electrical potential of their surroundings can be electrostatically charged. The figure below shows the maximum electrostatic voltage which may build up on a person coming into contact with the materials indicated. These values correspond to IEC 801-2 specifications. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 122: Figure B-1 Electrostatic Voltages Which An Operator Can Be Subjected To

    In this way, the discharged energy can not affect the sensitive devices. Discharge your body before you start taking any measurements on a module. Do so by touching grounded metallic parts. Always use grounded measuring instruments. SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 123: List Of Abbreviations

    Preset tare (predefined tare weight with manual taring) Random access memory Programmable logic controller STEP 7 Programming device software for SIMATIC S7 Tare weight Technology module Touch Panel (SIMATIC) Universal Data Type (S7) Write protection Load cell(s) Numerical range SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 124 List of abbreviations C.1 List of abbreviations SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

  • Page 125: Index

    Index Additional Support, 120 Customer Support Hotline, 119 ESD guidelines, 121 Guidelines ESD guidelines, 121 Hotline, 119 Internet, 119 Service, 119 Support, 119 SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...
  • Page 126 Index SIWAREX WP321 Manual, 07/2014, A5E33715669A-02...

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