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CSM ECAT STGMM 6 User Manual

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ECAT STGMM 6
User Guide
Version 01.10
Innovative Measurement and Data Technology

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Summary of Contents for CSM ECAT STGMM 6

  • Page 1 ECAT STGMM 6 User Guide Version 01.10 Innovative Measurement and Data Technology...
  • Page 3 All trademarks being mentioned in this document are properties of their respective owners. Contact Information CSM offers support for its products during the entire product life cycle. Updates for all components (e.g. documentation and configuration software) will be provided on the CSM website as soon as they become available.
  • Page 4 ECAT STGMM 6 User Guide Version 01.10 User Guide...

  • Page 5: Table Of Contents

    Status LED ....................8 3.1.2.3 Channel LEDs ..................... 9 MOUNTING AND INSTALLATION ..............10 Before mounting the device ....................10 Mounting ECAT STGMM 6 ....................10 Installing ECAT STGMM 6 ....................12 4.3.1 Before installing the device ..................12 4.3.2 Connectors.......................
  • Page 6 What is "strain"?....................... 44 7.1.2 Strain gauges ......................44 7.1.3 Using bridge circuits for strain gauge measurements ..........44 7.1.4 Using ECAT STGMM 6 for strain gauge measurements ........47 7.1.4.1 Full bridge ....................48 7.1.4.2 Half bridge ....................49 7.1.4.3 Diagonal bridge ..................

  • Page 7: Introduction

    ECAT STGMM 6 Introduction Introduction About this user guide This user guide contains important information for handling the product the product. Please read the entire document carefully before installation and initial operation. Symbols and writing conventions Symbols/writing Meaning Application Example conventions ...

  • Page 8: Warning Sign

    ECAT STGMM 6 Introduction Warning sign Warning signs refer to risks which may arise when using the device The non-observance of safety instructions contained in warning signs may result in serious injuries or danger to life of persons and/or material damage.

  • Page 9: Mandatory Signs

    EtherCAT is an Ethernet-based field bus system, developed by Beckhoff and the EtherCAT Technology Group.  See Ethercat.de Electromagnetic Compatibility ElectroStatic Discharge MC tool Measurement & Calibration tool STrain Gauge STGMM Strain Gauge MiniModule: CSM measurement module for strain gauge measurements Version 01.10 User Guide...

  • Page 10: Legal Disclaimer

     See also chapter 2.2 “Operator’s obligation”. ESD Information The manufacturer of the product declares that the device ECAT STGMM 6 is in conformity with the requirements of the European EMC Directive 2004/108/EG. NOTICE! Particular care has to be taken concerning ESD.

  • Page 11: Safety Instructions

    This chapter contains important safety information. Please read the following paragraphs carefully. General safety instructions The measurement module ECAT STGMM 6 has been designed and manufactured to comply with the relevant safety standards. The product is manufactured in due consideration of the standards of an ISO 9001 Quality Management System.

  • Page 12: Product Description

    ECAT MiniModule series can be operated via one XCP-Gateway. ECAT STGMM 6 is operated in an EtherCAT network as EtherCAT slave device. Configuration is carried out via XCP-Gateway using the configuration software xx-Scan Config. The module is operated using XCP-capable software (DAQ).

  • Page 13: Connectors And Components

    The specification “M4 x 8 mm” only applies if a standard mounting angle from the product range of CSM MiniModule accessories is used. In this case, the screw length may not exceed 8 mm. In case of combination with any other mounting material, a different screw length may be required.

  • Page 14: Functional Description Leds

    Indicator LEDs Link/Activity IN and OUT The indicator LEDs for the sockets IN and OUT (see Fig. 3-1) are lit or are flashing if the ECAT STGMM 6 is electrically connected to an XCP-Gateway or another ECAT measurement module and or if data is being transferred.

  • Page 15: Channel Leds

    ECAT STGMM 6 Product description 3.1.2.3 Channel LEDs The channel LEDs provide information on the status of the corresponding channel. Error code in measurement Meaning software No bridge excitation voltage. "HARDWARE_ERROR” Channel is functioning fault-free. 100 % green 50 %...

  • Page 16: Mounting And Installation

    Before mounting the device ECAT STGMM 6 measurement modules are equipped with a GORE™ membrane and a venting groove. They are essential to ensure the fault-free regulation of pressure and humidity. To ensure reliability and performance of the device, it is absolutely essential that the small ventilation inlet it the rear side of the housing (see Fig.
  • Page 17  See datasheet "CSM MiniModule Accessories" for details. If a standard mounting angle is from the product range of CSM MiniModule accessories is used, the screw length may not exceed 8 mm (M4 x 8mm). In case of combination with any other mounting material, a different screw length may be required.

  • Page 18: Installing Ecat Stgmm 6

    CSM offers a wide range of cables for connecting ECAT measurement modules.  See datasheet “CSM MiniModule Accessories” for details. Please contact the sales department for further details. CSM offers a calibration and repair service for ECAT STGMM 6 measurement modules.  See chapter 6.1 "Maintenance and repair". 4.3.2...

  • Page 19: Out Socket

    ECAT STGMM 6 Mounting and installation NOTICE! The power supply is wired through from the IN socket to the OUT socket. Thus, a signal at a specific pin of the IN socket is always available at the OUT socket, too.

  • Page 20: Measurement Input Socket

    Measurement input socket By default LEMO 1B sockets are used for the measurement inputs. To have the device equipped with different sockets, please contact CSM. For connecting a cable to this socket, a plug of the type FGG.1B.308.CLADxxxxx  is needed. Matching plugs and termination plugs are available from CSM.

  • Page 21: Strain Gauge Connection Diagrams

    4- and 6-wire full bridges 4- and 6-wire full bridges can be connected to the measurement inputs of ECAT STGMM 6 measure- ment modules. If a 4- or 6-wire full bridge is to be implemented largely depends on the requirements regarding measurement accuracy.

  • Page 22: Strain Gauge Full Bridge In 4-Wire Connection

    ECAT STGMM 6 Mounting and installation 4.3.3.2 Strain gauge full bridge in 4-wire connection  + (4)  + (6) SENSE  + (2)  + (1) V = 1-5 V Data (8) TEDS Interface  + (5) SENSE  + (3) Channel shield (7) Fig. 4-1: Connection diagram for full bridge in 4-wire connection.

  • Page 23: Strain Gauge Full Bridge In 6-Wire Connection

    ECAT STGMM 6 Mounting and installation 4.3.3.3 Strain gauge full bridge in 6-wire connection + (4) + (6) SENSE + (2) - (1) V = 1-5 V Data (8) TEDS Interface - (5) SENSE - (3) Channel shield (7) Fig. 4-2: Connection diagram for full bridge in 6-wire connection ...

  • Page 24: Half Bridge

    ECAT STGMM 6 Mounting and installation 4.3.3.4 Half bridge In a half bridge circuit, the measuring bridge is supplemented by two fixed resistors, i.e. only two parts of the measuring bridge are active: the strain gauges R and R (see Fig. 4-3 and Fig. 4-4).

  • Page 25: Half Bridge With "Free Factor

    By default, half and full bridges can be connected to an EACT STGMM 6. If a quarter bridge needs to be connected, ECAT STGMM 6 provides the setting option Halfbridge with free factor. In combination with an external resistor this setting can be used for connecting a quarter bridge to the measurement module, if required.

  • Page 26: Connecting The Cables

     Cables for connecting EtherCAT measurement modules: ECAT K400-xxxx  Cable for connecting an ECAT STGMM 6 to the PC and the power supply ECAT K420-xxxx NOTICE! Depending on the number of measurement modules and the cable lengths it may be necessary to apply an intermediate power supply.
  • Page 27 ECAT STGMM 6 Mounting and installation The data in Tab. 4-4 is based on the assumption that the ECAT STGMM 6 measurement modules are operated under load. A 350  full bridge is connected to each measurement channel, each supplied with a 5 V bridge excitation voltage.

  • Page 28: Applying Ecat Stgmm 6

    Power Connection cable supply K400-xxxx Fig. 5-1: Measurement application with three ECAT STGMM 6 and one XCP-Gateway The installation consists of the following items:  3 measurement modules ECAT STGMM 6  1 protocol converter XCP-Gateway  1 power supply ...

  • Page 29: Configuring Ecat Stgmm 6

    ECAT STGMM 6 Applying ECAT STGMM 6 Configuring ECAT STGMM 6 For configuring measurement modules via XCP-Gateway, the Windows application xx-Scan Config is used. This utility program is supplied on the CD that is included in the shipping content of the ECAT STGMM 6 measurement module.

  • Page 30: Dialogs And Windows

    ECAT STGMM 6 Applying ECAT STGMM 6  The Subnet mask entry is added automatically.  Click on OK to finish the process. Using xx-Scan Config for configuration The following paragraphs contain information as to how a simple configuration is created and saved to an A2L configuration file, using the configuration software xx-Scan Config.

  • Page 31: Offline Configuration

    ECAT STGMM 6 Applying ECAT STGMM 6 5.2.2 Offline configuration An offline configuration serves the purpose to summarize configuration-specific for saving it in an A2L file, to transfer this file to a measurement module or to make it available for use in another configuration tool like e.g.
  • Page 32  See chapter 5.2.3.6 "Configuring measurement channels" and chapter 5.2.3.7 "Configuring ECAT STGMM 6". As soon as the connection to the application has been selected, the configuration needs to be transferred to the respective measurement module.

  • Page 33: Online Configuration

     XCP-Gateway is properly connected to the data acquisition PC It is advisable always to use the latest version of xx-Scan Config. Specific technical information can be found in the download area of the CSM website. 5.2.3.2 Starting xx-Scan Config and selecting the communication interface ...

  • Page 34: Setting Configuration Parameters

    ECAT STGMM 6 Applying ECAT STGMM 6  Select Options | Interface ( Ctrl + I).  The Interface dialog opens. Fig. 5-13: Interface dialog  Click on OK to confirm the selection. If the XCP-Gateway is connected to the PC, the option XCP-Gateway will normally be automatically displayed in the Interface dialog.
  • Page 35 ECAT STGMM 6 Applying ECAT STGMM 6 The Configuration tab provides setting options for the XCP-Gateway connection parameters. Fig. 5-15: XCP-Gateway dialog, Configuration tab The following settings can be made in the Parameters for Connection area:  IP: Entry field for the fixed IP address of the XCP-Gateway. By default xx-Scan Config assigns the address 192.168.100.3 (host + 2).

  • Page 36: Creating A New Configuration File

    ECAT STGMM 6 Applying ECAT STGMM 6  Clicking on Write writes the currently loaded license data to the XCP-Gateway.  Clicking on Read imports the license information from the XCP-Gateway.  Make the required settings in both tabs, then click on OK to close the dialog.

  • Page 37: Scan Bus" And "Auto-Configuration

    ECAT STGMM 6 Applying ECAT STGMM 6 5.2.3.5 “Scan Bus” and “Auto-Configuration” The next step is to check which measurement modules are connected to the bus. The functions Scan Bus and Auto-Configuration are available for this purpose. Both functions provide options to detect measurement modules connected to the bus and to read out configurations from the module.
  • Page 38 ECAT STGMM 6 Applying ECAT STGMM 6 Running Auto-Configuration Similar to Scan Bus the function Auto-Configuration checks the bus for connected measurement modules. If Auto-Configuration is used a configuration file will be automatically created, so there is no need to create a new configuration file manually beforehand.
  • Page 39 ECAT STGMM 6 Applying ECAT STGMM 6 Fig. 5-23: Auto-Configuration: display of results  Finally, a message is displayed in an additional window, indicating how many measurement modules have been detected and if the configuration has been modified. Fig. 5-24: Message “Auto-Configuration completed”...

  • Page 40: Configuring Measurement Channels

     The following dialog opens: Fig. 5-27: Dialog for measurement channel configuration  Make the required settings (see table "ECAT STGMM 6 channel configuration").  Click on OK to close the dialog.  For configuring the remaining device channels, proceed as described above.
  • Page 41 Comment Any character may be used (max. 100 characters) This pull-down menu provides the measuring unit options "mV/V" and "µm/m". ECAT STGMM 6 measures the bridge excitation voltage V and the measuring voltage V and calculates the quotient for bridge unbalance V...
  • Page 42  The following dialog is displayed: File | Auto-Scale provides the additional option to call up the Bridge Balancing dialog for processing all channels of an ECAT STGMM 6 measurement module simultaneously. The options TEDS and Document are described in section "Transferring bridge balancing settings".
  • Page 43  Click on Finish to complete the zero adjustment.  The computed offset value is displayed in the Bridge Balancing field. ECAT STGMM 6 features a switchable 6th order Butterworth filter. The options available in the pull-down menu depend on the sampling rate or measurement data rate that has been set.
  • Page 44 ECAT STGMM 6 Applying ECAT STGMM 6 Field Function Note: This field is only available if the measuring unit "µm/m" has been set in the field Measurement Unit and if one of the following options has been selected from the Bridge Type pull-down menu: ...

  • Page 45: Configuring Ecat Stgmm 6

    Minimum value to be defined by the user that is used by the MC or DAQ software Maximum value to be defined by the user that is used by the MC or DAQ software Maximum Tab. 5-1: Dialog ECAT STGMM 6 channel configuration 5.2.3.7 Configuring ECAT STGMM 6 Fig. 5-34: Config1.a2l – Tree view window ...
  • Page 46 ECAT STGMM 6 Applying ECAT STGMM 6  The length may not exceed 24 characters.  Allowed characters: [a…z], [A…Z], [0…9] and " _ ".  The name needs to start with a character or " _ ".  The name needs to be unique, i.e. it may be used only once per configuration (A2L file).

  • Page 47: Saving Configuration In A2L File

    ECAT STGMM 6 Applying ECAT STGMM 6 Verifying the measurement values Finally, a test can be carried out to check the plausibility of the measurements.  Click on the Measure button (see Fig. 5-35).  The following window opens: Fig. 5-37: Measurement Value window ...
  • Page 48 ECAT STGMM 6 Applying ECAT STGMM 6 Saving an A2L file  Select File | Save ( Ctrl + S).  The Save As dialog opens. Fig. 5-40: Save As dialog NOTICE! The Save as dialog only opens when the configuration file is initially stored by using the menu command Save.

  • Page 49: Maintenance Services And Cleaning Instructions

    Maintenance Services and Cleaning Instructions Maintenance and repair Each ECAT STGMM 6 measurement module is calibrated and passes through a final inspection before delivery. This is documented by a calibration sticker (1) attached to the rear side of the device housing.

  • Page 50: Appendix

    ECAT STGMM 6 Appendix Appendix Measurements with strain gauges 7.1.1 What is "strain"? When an external force is applied to a device under test (DUT), a tensile or compressive strain is caused, depending on the direction of that force. This strain in turn causes a corresponding deformation of the component.
  • Page 51 ECAT STGMM 6 Appendix Fig. 7-1: Wheatstone bridge circuit When an excitation voltage V is applied at the nodes 2 and 3 (Fig. 1-1), this voltage is split between the two voltage dividers R and R , respectively. The measured voltage V...
  • Page 52 ECAT STGMM 6 Appendix A key feature of the Wheatstone bridge circuit is its signal reinforcement or its signal compensating effects depending on whether the resistors are located in diagonally opposite or adjacent branches of the bridge. The following applies: ...

  • Page 53: Using Ecat Stgmm 6 For Strain Gauge Measurements

    7.1.4 Using ECAT STGMM 6 for strain gauge measurements The ECAT STGMM 6 measurement module features six time-synchronous strain gauge inputs, to which full and half bridge stain gauges with 4- and 6-wire connections can be connected. Depending on the operating mode that has been selected ...

  • Page 54: Full Bridge

    ECAT STGMM 6 Appendix 7.1.4.1 Full bridge Example Full bridge with four active strain gauge elements (R Brief description The strain gauge elements R and R and R and R are applied to opposite sides of the DUT. If bending...

  • Page 55: Half Bridge

    ECAT STGMM 6 Appendix 7.1.4.2 Half bridge Example Half bridge with two active strain gauge elements R and R , which are complemented by the passive resistors R and R to form a full bridge. Brief description The strain gauges for the measurement of the bending strain, are applied to opposite sides of the DUT.
  • Page 56 ECAT STGMM 6 Appendix *   *     formula: Completion circuit (+) (-) TEDS interface Fig. 7-5: Connection diagram for half bridge with two active strain gauge elements: measurement in uniaxial direction The strain  is calculated as follows: µm...

  • Page 57: Diagonal Bridge

    If this setting option is used to connect a diagonal bridge to the measurement input of an ECAT STGMM 6, the user has to integrate the complement resistors into the application.
  • Page 58 ECAT STGMM 6 Appendix *   *     formula: TEDS interface Fig. 7-7: Connection diagram for a full bridge applied as a diagonal bridge The strain  is calculated as follows: µm 1000   User Guide Version 01.10...

  • Page 59: Half Bridge With Transverse Stg

    ECAT STGMM 6 Appendix 7.1.4.4 Half bridge with transverse STG Example Half-bridge circuit consisting of two active strain gauge elements (R and R ) which are complemented by two fixed resistors (R and R ) to form a full bridge.
  • Page 60 ECAT STGMM 6 Appendix  * )     1   formula: Completion circuit (+) (-) TEDS interface Fig. 7-10: Connection diagram for half bridge with strain gauge element and Poisson strain gauge element The strain  is calculated as follows: µm...

  • Page 61: Full Bridge With Transverse Stgs

    ECAT STGMM 6 Appendix 7.1.4.5 Full bridge with transverse STGs Example I Full bridge with four active strain gauge elements. Two elements (R and R ) are applied in the principal direction of strain and two Poisson strain gauge elements (R and R ) are applied in transverse direction.
  • Page 62 ECAT STGMM 6 Appendix     *       formula: (+) (-) (+) (-) TEDS interface Fig. 7-12: Connection diagram for full bridge with two Poisson strain gauge elements in diagonally opposed branches The strain  is calculated as follows: µm...
  • Page 63 ECAT STGMM 6 Appendix Example II Full bridge with four active strain gauge elements. Two strain gauge elements are applied in the principal direction of strain (R and R ) and two Poisson strain gauge elements (R and R ) are applied transverse to the principal direction of strain.
  • Page 64 ECAT STGMM 6 Appendix     *       formula: (+) (-) (-) (+) TEDS interface Fig. 7-14: Connection diagram for full bridge with two Poisson strain gauge elements in adjacent branches The strain  is calculated as follows: µm...

  • Page 65: Half Bridge With Free Factor

    Half bridge with free factor The ECAT STGMM 6 has been designed for the connection of full and half bridges. If required, a quarter bridge can also be connected to the measurement module via the setting option Half Bridge with free factor.
  • Page 66 ECAT STGMM 6 Appendix Example Quarter bridge circuit with the active strain gauge element R measuring the axial strain (+). The circuit is extended to a full bridge by three fixed resistors integrated in the measuring amplifier (quarter bridge extension R...
  • Page 67 ECAT STGMM 6 Appendix The following section describes how the settings of quarter bridges connected to an ECAT STGMM 6 via K356-0200 /350 or K356-0200 /120 can be modified in xx-Scan Config. Modifying quarter bridge settings in xx-Scan Config The following section contains information regarding what needs to be done in xx-Scan Config if a quarter bridge is connected, what kind of problems may occur and how they can be solved.
  • Page 68  Double-click on the measurement channel.  The channel configuration dialog opens. Fig. 7-18: ECAT STGMM 6 channel configuration dialog: configuration errors  The status bar is highlighted in red and an error message is displayed, pointing out an incompa- tible bridge type.
  • Page 69 Appendix For fixing the compatibility/configuration problem, please proceed as follows:  Select the option ¼ CSM from the Bridge Type pull-down menu   The bridge type setting will be modified.  Click on Read from TEDS to fix the incorrect bridge balancing setting.
  • Page 70 ECAT STGMM 6 Appendix Transferring bridge balancing settings The bridge balancing value can be transferred to the A2L file by using the function Bridge Balancing. The bridge balancing value can either be transferred from the measurement module or TEDS or by entering the value manually into the field Value (Fig.

  • Page 71: Full Bridge With Free Factor

    ECAT STGMM 6 Appendix 7.1.4.7 Full bridge with free factor The setting option Full bridge with free factor offers the user the maximum possible flexibility for the preparation of customized strain gauge circuits. Similar to the setting option Full bridge, no device- internal complement circuit is provided.
  • Page 72 ECAT STGMM 6 Appendix Circuit characteristics  Measurement of the bending strain.  The effect of the temperature on the measurement is compensated. TEDS interface Fig. 7-25: Connection diagram for half bridge with two passive elements (setting option Full bridge with free factor) The strain ...

  • Page 73: List Of Figures

    Fig. 4-3: Connection diagram for half bridge ..................18 Fig. 4-4: Connection diagram for half bridge with "Free Factor" ............19 Fig. 5-1: Measurement application with three ECAT STGMM 6 and one XCP-Gateway ....22 Fig. 5-2: Dialog Internet Protocol Version 4 (TCP/IPv4) Properties ..........23 Fig.

  • Page 74: List Of Tables

    Fig. 5-40: Save As dialog ........................42 Fig. 5-41: ECAT_STGMM_01.a2l – Tree view window: new file name displayed in the header ..42 Fig. 6-1: ECAT STGMM 6 (Slide Case SCL), rear side with calibration sticker ........43 Fig. 7-1: Wheatstone bridge circuit...................... 45 Fig.
  • Page 75 Tab. 4-3: Socket measurement input: Pinning ..................14 Tab. 4-4: Number of measurement modules depending on cable length and supply voltage ..... 21 Tab. 5-1: Dialog ECAT STGMM 6 channel configuration ..............39 Tab. 7-1: Bridge circuit configurations ....................46 Tab.
  • Page 76 All trademarks mentioned are property of their respective owners. This document is subject to change without notice. ECAT_STGMM 6_UG_0110_ENG Copyright © 2015 CSM GmbH 2015-10-30...

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