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Gaussmeter IGM11 Operating Instructions

Chapter 9 Serial Interfaces

Page 52 / 106

MAGSYS

magne t

systeme

Version 01/2013

© 2013 MAGSYS magnet syste

me GmbH - All Rights Reserved.

9.4

EIA-485 Bus Protocol

The data protocol describes the access method according to the Master-Slave-
principle via a serial EIA-485 bus. This also comprises the point-to-point connection.

Features:

•

Strict support of the USS protocol by Siemens (USS is a trademark of the
Siemens AG)

•

Support of a multipoint connection via the EIA-485 hardware

•

Master-slave access method

•

Single master system

•

Maximum of 32 nodes (max. 31 slaves)

•

Simple, secure telegram frame

•

Simply feasible

You can connect one master and a maximum of 31 slaves to the bus. The single
slaves are selected by the master via an address character. An IGM11 can never take
the transmission initiative automatically. The communication is carried out in half-
duplex operation.

9.4.1

Telegram Syntax

Each telegram begins with the starting signal STX (Start of Text, 0x02h), followed by
the length specification (LNG) and the address byte (ADR), after that the user data.
The telegram ends with checksum (Block Check Character).

Figure 26 EIA-485 Telegram Syntax

Trial Version

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Содержание IGM11

Страница 1: ...OPERATING INSTRUCTIONS INDUSTRIAL GAUSSMETER IGM11 Trial Version Subject to change ...

Страница 2: ...nor for damages which can result from the use of this manual Since mistakes can never be avoided completely despite all efforts we would appreciate any given hint We will be anxious to correct any faults known to us as soon as possible Windows is a registered trademark of Microsoft Corporation Edition Data File IGM11_Manual_ENG doc Doc Date 08 10 2012 Hardware Status E Software Status 08 10 2012 C...

Страница 3: ... 4 Parameters of the Serial Interface EIA 485 37 6 3 5 Parameters of the LAN Interface 38 6 3 6 Settings of the Digital Inputs 38 6 3 7 Settings of the Digital Outputs 39 6 3 8 Settings of the Function Buttons 40 6 3 9 Display of the Error Memory 40 7 Power Supply Connection 41 8 Signal Interfaces 42 8 1 Introduction 42 8 2 Wiring of the Inputs 43 8 3 Wiring of the Outputs 44 9 Serial Interfaces 4...

Страница 4: ... 9 12 2 Main Commands 76 9 12 3 Peak Value Function 80 9 12 4 Probe Functions 82 9 12 5 Memory Functions 84 9 12 6 Device Functions 85 9 12 7 Interface Functions 87 10 Table of Error Messages 95 11 Unit Conversion Table 97 12 Technical Data 98 13 Declaration of Conformity 102 14 Warranty and Copyright 103 15 Index 104 Trial Version Subject to change ...

Страница 5: ...ay LAN Connection 22 Display during LAN Operation 23 Display 25 Status Display 26 Measuring Ranges 27 Signal Input Plus Switched 43 Signal Input Minus Switched 43 Signal Output Plus Switched 44 Signal Output Minus Switched 44 EIA 232 EIA 485 Connector J4 46 EIA 232 Connector J4 46 EIA 485 Connector J4 47 EIA 485 Bus Structure 48 EIA 485 Basic Network and Bus Terminals with Internal Connection 49 E...

Страница 6: ...er for the proper disposal of this device Use only appropriate magnetic field probes for this measuring device Observe the labeling of the device before connecting a magnetic field probe Do not use the device in explosive environments or near to inflammable gases or vapors Environmental Conditions This instrument has been designed for the use in rooms with low condensation See technical data 1 2 S...

Страница 7: ... Symbols Safety symbols can be found on various spots of the device Before using this connection or function read the corresponding reference in the manual This symbol refers to information and references in the operating instructions which the user has to follow in order to avoid injuries of persons or damage to the device or to gain correct measuring results Trial Version Subject to change ...

Страница 8: ...s you need to connect a measuring probe A suitable measuring probe can be connected via the 8 mm socket on the top of the device Each measuring probe is individually calibrated The calibration data are stored in the probe memory When a measuring probe is plugged in or changed these parameters will be read automatically 2 2 Running a Measurement After switching on the device the actual measured val...

Страница 9: ...nits of the SI system and of the Gauss CGS system preferably used in North America You can adjust the unit in the set up menu 2 4 Selecting the Measuring Range You can select from four measuring ranges in the set up menu The lower left area of the display shows the upper limit of the selected range If the measured value exceeds the limit of the selected range the display shows OL Overload instead ...

Страница 10: ...side the currently measured value the gaussmeter displays the status information in the upper right area Display Description LAN The device is accessed via the network connection HOLD The measurement is stopped via an assigned input ERR An error has occurred The error is stored in the error queue and can be read via the interfaces or the set up menu Measured value with unit Lifesign Measuring rang...

Страница 11: ...nd the end of a flat electrical conductor the charge carriers move with a rate of e n Drift E v r r µ whereby n µ represents the charge carrier mobility inside the conductor Due to their high mobility the charge carriers are always electrons In a displacement by 90 to the current direction you can tap a voltage which is ideally proportional to the magnetic flux density Only the part of the flux de...

Страница 12: ... deviate from this idealized effect Since there is a linear equation between the current and the measuring result it follows B S B t e n R e Hall 0 1 3 1 2 Non linear Properties of the Hall Probe In contrast to the idealized description you find a non linear behavior offset HALL Hall R B B S R 2 0 1 α For the used Hall sensor the real description is true for flux densities up to about 5000 mT 3 1 ...

Страница 13: ...pendence of the sensitivity A complex real time correction of the gaussmeter IGM11 compensates for the inherent non linearities of the used Hall probes and thus ensures a stable zero point 3 1 2 3 Field Dependence of the Cross Current Resistance The current distribution is the cause of the Hall probe resistance Current components which alike the Hall voltage run vertically to the direction of the ...

Страница 14: ...e that single Hall sensors measure one field component only 3 2 1 Sample Measurements with an NdFeB Magnet Due to the high local resolution the near surface measurement with magnets may lead to misinterpretations because of the large field strength gradients Figure 3 Flux Line Characteristics of an NdFeB Induction Disk Figure 3 shows an NdFeB magnet with a material remanence of 1400 mT In this exa...

Страница 15: ...ed Due to the locally changing working points on the radius of the magnet the flux density increases toward the outside In the center the magnet carries the highest magnetic load in air and therefore provides the lowest flux density 3 2 2 Remanence and Hall Gaussmeter Measurement The remance Br is a mesure for the aligned magnetic dipoles in the center of the magnet Br is the theoretically maximum...

Страница 16: ... magnet is most uncritical When moving the probe on the pole surface of the magnet the measuring value hardly changes at first When changing the distance though the measuring value varies considerably The smaller the magnet to be measured the stronger even slight misalignments change the measuring value For quality related research it is essential to ensure the positioning accuracy Since a Hall pr...

Страница 17: ...netic fields lead to a corruption of the measuring result To compensate external magnetic stray fields or asymmetries of the Hall probe the device can be reset For this purpose please hold the measuring probe into a field free area e g a zero Gauss chamber or orient the measuring probe in a free field in east west direction and activate the null balance The values are stored so that this balancing...

Страница 18: ...eme Version 01 2013 2013 MAGSYS magnet systeme GmbH All Rights Reserved 4 Control Elements and Connections 4 1 Front Panel Overview Figure 5 Front Panel Display Output of the measured value Status info ENTER button NEXT button Control of the set up menu USB socket Connection to a PC Trial Version Subject to change ...

Страница 19: ...et systeme Version 01 2013 2013 MAGSYS magnet systeme GmbH All Rights Reserved 4 2 Ports Overview Probe Port Probe EIA 232 EIA 485 Port 24V IO Ports Power Supply Network Port Figure 6 Ports Figure 7 Ports Top PROBE Interface Probe port Serial port EIA 232 and EIA 485 for PC and control Trial Version Subject to change ...

Страница 20: ...f your control via this port 4 4 Probe Connection The measuring probe is plugged into the probe port M8 socket IEC 61076 2 104 on the top of the device Note Only use measuring probes which are approved by the manufacturer to operate with this device Note The probe plugs must not be connected to the electric potential the protective conductor or the plug shell If you measure near current conducting...

Страница 21: ... 0 standard The interface is not insulated Please note that the shielding of the measuring probes e g the metallic handle might be connected to the protective conductor of your personal computer via this USB interface The device supports the USB device class HID The installation of a special driver on the computer is required Via the driver all functions and parameters of the device can be adjuste...

Страница 22: ...nt LAN Interface The interface is designed insulated The maximum insulation voltage is 150V AC The connection and the data access are shown via two light diodes at the port Display Meaning Green Shows data access Yellow Network cable is connected and a physical connection has been established Figure 10 Display LAN Connection The IPv4 address and the subnet mask are adjusted in the set up menu A dy...

Страница 23: ...possible at a time If one connection has been established further connection attempts will be ignored A prompt will not be shown The communication is carried out with standard SCPI commands Normal Ping requests will be answered The MAC address Media Access Control address will be shown in hexadecimal format in the overview function of the set up menu This address is dedicated to the device and can...

Страница 24: ...ctions in detail ENTER With this button you confirm the entry select the menu item or a numerical digit You can assign a function for the standard operation to this button in the set up menu NEXT With this button you choose the next selection possibility change the menu item or numerical digit You can assign a function for the standard operation to this button in the set up menu ENTER and NEXT pre...

Страница 25: ...nge overflow the message OL is issued Measuring Range and Mode Output of the actual measuring range physical unit and measuring mode Status of the Digital Inputs Outputs The actual state of the digital inputs and outputs is permanently issued on the left inputs 1 to 3 on the right outputs 1 to 4 An active input or output is shown invertedly Lifesign For easy evaluation of the functioning this fiel...

Страница 26: ... Display 5 4 Null Balance Determined by the laws of physics measuring probes have a weak null balance Possibly an external magnetic field such as the earth s field or the remanence of adjacent metal parts might cause a zero offset This influence can be corrected automatically by the probe compensation The detected correction values are stored non volatile For this reason the probe compensation rat...

Страница 27: ...Limit Resolution Range Limit Resolution Tesla 1 10 mT 1 µT 10 mT 10 µT 10 mT 10 µT T 2 100 mT 10 µT 100 mT 100 µT 100 mT 100 µT 3 1000 mT 100 µT 1000 mT 1 mT 1000 mT 1 mT 4 4500 mT 10 T 1 mT 3000 mT 6 5 T 10 mT 4500 mT 10 T 10 mT Ampere m 1 10 kA m 1 A m 10 kA m 10 A m 10 kA m 10 A m A m 2 100 kA m 10 A m 100 kA m 100 A m 100 kA m 100 A m 3 1000 kA m 100 A m 1000 kA m 1 kA m 1000 kA m 1 kA m 4 380...

Страница 28: ... ranges overview 5 7 DC AC Field Measurement With the gaussmeter you can carry out both DC field measurements typical for permanent magnets and AC field measurements typical for transformers and similar components You can moreover record fast single impulses Select the measurement mode via the corresponding entry in the set up menu 5 7 1 DC Field Measurement When measuring DC fields the gathered m...

Страница 29: ...ically suppressed in this type of measurement The upper display area shows the gathered DC field contribution This might be especially helpful when an overflow is displayed with low AC field amplitude Note Please note that superimposed DC field contributions must not be so large that they exceed the measuring range A small AC field together with a DC field may result in a value overflow The accura...

Страница 30: ...kHz 1 00 5 kHz 0 98 7 kHz 0 95 10 kHz 0 90 Shape Factor Sinusoidal Field Pattern Field Strength Beff Factor 700 mT 1 00 1000 mT 1 01 1500 mT 1 02 2000 mT 1 03 The frequency response factor and shape factor are multiplied with the basic accuracy in dependence of the respective measuring parameters and then added to the basic accuracy Example Measuring Beff 1000 mT at a frequency of 5 kHz The basic ...

Страница 31: ...e absolute peak value The top part of the display shows the actual DC field measuring value You can reset this value via an assigned button in the set up menu or via an assigned digital entry in set up menu Note Please notice that in sensitive measuring ranges magnetic AC fields caused by e g transformers or electric lines might produce a measuring value Normally these values would not be noticed ...

Страница 32: ...d Pattern Frequency Measuring Range 4500 mT 1000 mT 100 mT 10 mT 50 Hz 1 00 1 00 1 00 0 99 70 Hz 1 00 1 00 0 99 0 98 100 Hz 1 00 1 00 0 98 0 93 200 Hz 1 00 1 00 500 Hz 0 99 0 99 700 Hz 0 99 0 98 1000 Hz 0 98 0 98 2000 Hz 0 92 The range depending frequency response factor is multiplied by the basic accuracy depending on the respective signal frequencies and then added to the basic accuracy Example ...

Страница 33: ...e probe parameters the serial number and the name After changing the probe or switching on the device these data are read automatically With no probe connected the display shows If no valid probe data can be read the display shows At the same time an error message will be written in the error queue and the error status will be displayed In this case default calibration values will be used The meas...

Страница 34: ... select a menu item press the ENTER button shortly To exit the set up menu or each sub menu press the ENTER button longer 6 1 Reset To reset all parameters to factory defaults press and hold both buttons when you switch on the device After about 5 seconds this display appears and all parameters will be reset to factory default Please notice that all numerical maximum values will be lost The same a...

Страница 35: ...ter of the LAN interface The MAC address is fixed Parameter of outputs 1 4 and inputs 1 3 Output 1 is set if the measuring value is between 120 and 140 Output 2 is set if the measuring value is higher then 150 Output 3 is set if the device measures and Output 4 on overflows Input 1 resets the peak value Input 2 has no function Input 3 compensates the magnetic offset The top button changes the meas...

Страница 36: ...ement Measurement of the AC field DC PEAK Fast detection of peak values The absolutely higher peak of the measuring value is detected each 20µms TESLA Display unit Display unit Tesla GAUSS Display unit Display unit Gauss OERSTED Display unit Display unit Oersted KA M Display unit Display unit kA m 10 mT Measuring range Peak Value 10 mT 100 mT Measuring range Peak value 100 mT 1000 mT Measuring ran...

Страница 37: ...it s 1 or 2 Number of stop bits NONE Parity bit No parity EVEN Even parity ODD Odd parity SCPI Protocol SCPI commands SHORT Short telegrams FLOW Continuous output 6 3 4 Parameters of the Serial Interface EIA 485 Settings for the serial interface EIA 485 Always 8 data bits 1 stop bit even parity are used 1200 bps Rate 1200 bit s to 38400 bps 38400 bit s BUS Operating mode The device is addressed vi...

Страница 38: ... NONE No function This input is not used HOLD Hold The measurement is on hold if the input is set NULL PEAK Reset of the peak value The peak value is set to null edge NULL SET Probe null compensation The null compensation will be started edge 24V Logic level This function will be started with rising edge or active signal 0V Logic level This function will be started with falling edge or no signal C...

Страница 39: ...e is less than the comparative value IN RANGE Relation This output will be set if the displayed measuring value lies within both comparative values OUT OF RANGE Relation This output will be set if the displayed measuring value lies beyond the range of both comparative values OVERFLOW Overflow detection This output is set if an overflow occurred Snnnnnn nnn Operands Input of the operand for the GRE...

Страница 40: ...the measuring ranges PEAK NULL Reset peak value The peak value is reset to zero PROBE NULL Probe zero compensation The zero compensation is started NONE No function Correspondindly these settings apply to both buttons 6 3 9 Display of the Error Memory This menu item displays the stored error messages No error stored Error in the parameter memory of the measuring probe See error messages in chapter...

Страница 41: ...ng polarity connection In a switch cabinet the power supply system should be fused The common potentials of the input and output signals can easily be connected to supply voltage via the double connector plug Note The ground connection GND of the power supply is galvanically connected with the measuring probe and the serial interfaces Please pay attention that this connector is connected with the ...

Страница 42: ...uts can be operated with both polarities bipolar All input and output signals are on connector J1 The function of each signal can be configured independently See documentation of the set up menu The inputs and outputs each have a common connection The common potential of the inputs is on connector CI The common potential of the outputs is on connector CO The common potentials are on the power supp...

Страница 43: ... Switched This option is preferably used in European countries in order to connect a PLC control Option 2 The control provided by the customer switches the external negative potential Figure 16 Signal Input Minus Switched This option is preferably used in America and Japan in order to connect a PLC control Insulated DC input Used as current sinking inputs Insulated DC input Used as current sourcin...

Страница 44: ... Plus Switched This option is preferably used in European countries in order to connect a PLC control Option 2 The gaussmeter switches the minus potential provided by the customer The load is switched against the external plus pole Figure 18 Signal Output Minus Switched This option is preferably used in America and Japan in order to connect a PLC control Insulated DC output Used as current source ...

Страница 45: ...connected computer is supposed to carry out the data exchange a connection is possible via this interface Basically the device can also be controlled via the USB interface on the front panel For a user programmed control this interface requires a special driver on the computer This driver is provided in the form of a Windows DLL This interface is mainly for easy parametrization of the device A cor...

Страница 46: ...and the EIA 485 connector use the 9 pole connector of the type DE 9 on the top right side of the device J4 The gaussmeter can be connected to the controller or a computer which are equipped with a DTE connector DB 25 or DE 9 Figure 19 EIA 232 EIA 485 Connector J4 EIA 232 Connector Connector Input Output Function 2 Input Receive data RxD 3 Output Transmit data TxD 5 Ground GND Figure 20 EIA 232 Con...

Страница 47: ...1 2013 2013 MAGSYS magnet systeme GmbH All Rights Reserved EIA 485 Connector Connector Input Output Function 4 Data line A Bus connection negative 9 Data line B Bus connection positive 8 5 V max 50 mA Voltage supply for external terminal resistance 5 Ground GND Figure 21 EIA 485 Connector J4 Trial Version Subject to change ...

Страница 48: ...ion with a control unit or you can access several devices via a bus structure The IGM11 always operates as slave unit at this bus This means it will transmit data only after a request Figure 22 EIA 485 Bus Structure 9 3 1 EIA 485 Bus Terminal The bus line must be terminated with a resistance network on both sides For this purpose a resistance of 150 Ω is switched on the first and last device betwe...

Страница 49: ... should be provided for those devices with active bus terminal With the IGM11 the resistances of the basic network can also be mounted in the connector casing The 5 V connection provided for the basic network at Pin 8 of the connector J4 can thus be loaded with a maximum of 50 mA Figure 23 EIA 485 Basic Network and Bus Terminals with Internal Connection Figure 24 EIA 485 Basic Network and Bus Term...

Страница 50: ... wire 1 1 mm 85 optical cover Conductor resistance 40 Ω km Insulation resistance 200 MΩ km Operating voltage 300 V Test voltage 1500 V Load capacity 5 A Capacity 120 pF m Line length 1200 m 9 3 4 EIA 485 Wiring Details When wiring the bus cable pay attention to an EMC compatible assembly The bus line can be layed in one cable channel together with other data lines and unshielded lines for DC less ...

Страница 51: ...an 7 V the data transmission might be faulty The devices might also be damaged A potential equalization between the devices is required Please provide the following diameters of the potential equalization of copper 16 mm for line lengths up to 200 m 25 mm for line lengths of more than 200 m Connect the potential equalization line for all devices to ground 9 3 6 EIA 485 Shielding Details The shield...

Страница 52: ...5 hardware Master slave access method Single master system Maximum of 32 nodes max 31 slaves Simple secure telegram frame Simply feasible You can connect one master and a maximum of 31 slaves to the bus The single slaves are selected by the master via an address character An IGM11 can never take the transmission initiative automatically The communication is carried out in half duplex operation 9 4...

Страница 53: ...heck Character 9 4 3 Telegram Length The telegram length is variable The length of a telegram is specified in the second byte of the telegram The maximum total length of a telegram is 80 bytes load data Only the user data number n the address byte ADR and the backup character are counted among the telegram length Thus the length of a data telegram is two characters longer than the value of LNG A m...

Страница 54: ...addressed The telegram must not be answered Mirror telegram Bit 6 For testing reasons the addressed device transmits the telegram unchanged back to the master The slave device answers with its own address 9 4 6 Telegram Exchange After a starting pause of at least 3 character runtimes the master transmits its data telegram starting with STX 0x02h decimal 2 The addressed device processes the data an...

Страница 55: ... set in the set up menu The transfer rate of the data can be selected within 1200 to 38400 bit s The device address bus address can be within 0 and 31 The character parity is set to EVEN for this interface and cannot be modified To select the bus protocol in the set up menu choose the parameter value BUS Alternatively the interface can also be operated in the mode P2P Here the interface acts analo...

Страница 56: ...69 64 6E 74 3F 09 IGM11 02 2C 01 4D 41 47 53 59 53 2D 4D 41 47 4E 45 54 2D 53 59 53 54 45 4D 45 2C 49 47 4D 31 31 2C 31 32 2E 30 39 2E 32 30 31 32 2C 45 0D 0A 4F Master STX 0x07 0x01 read 0x29 IGM11 STX 0x10 0x01 2 977963e 03 CR LF 0x41 Master 02 07 01 72 65 61 64 3F 29 IGM11 02 10 01 32 2E 39 37 38 35 34 33 65 2B 30 33 0D 0A 41 Master STX 0x06 0x01 rst 0x5A IGM11 STX 0x04 0x01 CR LF 0x00 Master 0...

Страница 57: ... via a compact limited protocol Especially suitable to connect to a PLC FLOW A measured value is transmitted every 100ms Operating mode bit rate parity and number of stop bits are set in the set up menu The rate can be set within 1200 and 38400 bit s The character parity for this interface can be selected to EVEN ODD or NONE The number of data bits is set to 8 and cannot be modified 9 7 1 Operatin...

Страница 58: ...nt measuring value Current measuring value s n 0 9 STX snnnn ETX STX snnn n ETX STX snn nn ETX STX sn nnn ETX STX R ETX Read out measuring range Current measuring range n 0 3 STX b ETX STX R0 ETX Set measuring range to the most sensitive range e g 10 mT None STX R1 ETX Analogous to R0 second most sensitive range e g 100 mT None STX R2 ETX Analogous to R0 third most sensitive range e g 1000 mT None...

Страница 59: ...gn four decimal digits and a point as decimal separator An overflow is diplayed as 9999 9 8 Connector Cable EIA 232 For direct connection to a computer use a null modem cable In a null modem cable the data transfer lines TxD and RxD are crossed The signal ground wire GND is pulled through Handshake lines DTR DSR or RTS CTS are not used Read further details in the instructions of your controller If...

Страница 60: ...1 47 53 59 53 2D 4D 41 47 4E 45 54 2D 53 59 53 54 45 4D 45 2C 49 47 4D 31 31 2C 31 32 2E 30 39 2E 32 30 31 32 2C 45 0D 0A Master read LF IGM11 3 554021e 01 CR LF Master 72 65 61 64 3F 0A IGM11 33 2E 35 35 34 30 32 31 65 2D 30 31 0D 0A Master rst LF IGM11 No Reply Master 2A 72 73 74 0A IGM11 No Reply Display in ASCII character Display in hexacecimal code Mode FLOW IGM11 STX 0298 ETX IGM11 02 2B 30 ...

Страница 61: ...e SHORT Master STX ETX IGM11 STX 355 4 ETX Master 02 3F 03 IGM11 02 2B 33 35 35 2E 34 03 Master STX R0 ETX IGM11 No Reply Master 02 52 30 03 IGM11 No Reply Master STX R ETX IGM11 STX 3 ETX Master 02 52 3F 03 IGM11 02 33 03 Master STX O ETX IGM11 STX 0000 ETX Master 02 4F 03 IGM11 02 30 30 30 30 03 Display in ASCII characters Display in hexadecimal code Trial Version Subject to change ...

Страница 62: ...ssmeter can communicate with a controller The SCPI language uses a hierarchical structure The command tree consists of root node commands that are placed on top and several levels below each root node command You have to specify the complete path to execute commands of the lower levels 9 10 2 1 Command Structure The commands generally have a short and a long form In the following descriptions the ...

Страница 63: ...s at any time however a SCPI device here the gaussmeter will only answer if it has expressly been instructed to do so Only query commands commands that end with a question mark prompt the device to send a response For queries the device displays either measuring values or internal device settings Note If you send two query commands without having read the reply to the first and thereupon try to re...

Страница 64: ...s are used in order to program setups that have a limited amount of values You have a long and a short form for command key words Upper and lower case can be mixed Replies to queries are always only emitted in long form and in upper case 9 10 3 3 Boolean Parameter Boolean parameters represent a single state that is either true or false As a false value the gaussmeter accepts OFF or 0 As a true val...

Страница 65: ...ages relevant for the measurement The error event register stores the error messages and the standard event register stores the SCPI standard messages In addition to the event registers there are further registers which serve for linking of registers and will be explained in the following 9 10 4 1 Event Register The event register can only be read The signal bits are set by the device but are not ...

Страница 66: ...ent in the event registers also sets back the respective sum bit in the status register Via the release register of the sum register the single sum bits can be re merged to one whole message service query 9 10 4 4 Overview Status Model Overload 0 Data ready 1 Not used Not used Not used Not used Not used Not used Event Register Measurement STAT MEAS EVEN Release Register STAT MEAS ENAB Value STAT M...

Страница 67: ...the measuring probe are not consistent Definition of the bits in the standard event register Bit Decimal Value Description Definition 0 1 Command executed OPC operation complete Is set at the end of the SCPI command processing 3 8 Device error DDE device dependend error An error has occured 5 32 Command error CME command error An error has occcured during the SCPI command processing 7 128 Ready fo...

Страница 68: ... for synchronization OPC Set the event bit Operation terminated RST Reset the gaussmeter SRE Set or query the sum release register STB Query the sum register STAT PRES Reset the error byte release register STAT QUES ENAB Set or query the error data event release register STAT QUES EVEN Query the error data event register STAT MEAS ENAB Set or query the measurement event release register STAT MEAS ...

Страница 69: ...ak value detection PEAK SLOW READ MIN Query the minimum values of the slow peak value detection PEAK SLOW READ MAX Query the maximum values of the slow peak value detection 9 11 4 Probe Functions PROB NAME Query the probe description PROB SN Query the serial number of the probe PROB TYPE Query the probe type PROB CAL Query the calibration data of the probe 9 11 5 Device Functions SN UNIT Query the...

Страница 70: ...erface SERI COMB ADR 0 31 Bus address of the EIA 485 interface IP IP1 IP IP4 0 255 IP address of the LAN interface IP MAS1 IP MAS4 0 255 IP subnet mask of the LAN interface 9 11 8 Digital Interfaces DGIO IN1 DGIO IN3 Query the invidual digital inputs DGIO IN Query all digital inputs DGIO SET IN x FUNC NO HOLD NLPK NULL Function of the single digital inputs x 1 3 DGIO SET IN x LOG 0 1 Logic of the ...

Страница 71: ...ght get lost Mode Command Parameter none Response none RST value not relevant Example send RST LF 9 12 1 2 CLS Description Clear Status Command Reset all event registers Mode Command Parameter none Response none RST Value not relevant Example send CLS LF 9 12 1 3 ESE Description Standard Event Status Enable Command Set or Query the standard event register The gaussmeter displays a decimal value th...

Страница 72: ...Description Identification Query Query the gaussmeter identification character string The gaussmeter returns the following identification text MAGSYS MAGNET SYSTEME IGM11 1 xxxxxx C Mode Query Parameter none Response Identification character string RST Value not relevant Example send IDN LF receive MAGSYS MAGNET SYSTEME IGM11 1 011111 C CR LF 9 12 1 6 OPC Description Operation Complete Query Retur...

Страница 73: ...ST Value not relevant Example send OPC LF 9 12 1 8 SRE Description Service Request Enable Query Set or query the status release register The gaussmeter returns the bit pattern as a decimal value Mode Command and query Parameter Value within the range of 0 255 Response Status release register RST Value not relevant Example send SRE 22 LF send SRE LF receive 41 CR LF 9 12 1 9 STB Description Read St...

Страница 74: ...S ENABle Description Set or query the error data event release register The gaussmeter returns the bit pattern as a decimal value Mode Command and query Parameter Value within the range of 0 255 Response Error event release register RST Value not relevant Example send STAT QUES ENAB 64 LF send STAT QUES ENAB LF receive 64 CR LF 9 12 1 12 STAT QUES EVENt Description Query the error event register T...

Страница 75: ...a decimal value Mode Command and query Parameter Value within the range of 0 255 Response Measurement event release register RST Value not relevant Example send STAT MEAS ENAB 3 LF send STAT MEAS ENAB LF receive 3 CR LF 9 12 1 14 STAT MEAS EVENt Description Query the measurement event register The gaussmeter returns the bit pattern as a decimal value Mode Query Parameter none Response Measurement ...

Страница 76: ...de Command and query Parameter DC AC PEAK DC DC operation mode AC AC operation mode PEAK DC field peak value detection Response Operating mode RST Value DC Example send MODE AC LF send MODE LF receive AC CR LF 9 12 2 2 NULL Description Null compensation of the measuring probe This function should only be carried out in sufficiently field free areas Mode Command Parameter none Response none RST Val...

Страница 77: ...nd measuring modes Parameter Tesla Gauss Oersted A m 3 4 5 10T 45 100 kG 45 100 kOe 3800 8500 kA m 2 1 T 10 kG 10 kOe 1000 kA m 1 100 mT 1 kG 1 kOe 100 kA m DC field measurement and Fast peak value measurement 0 10 mT 100 G 100 Oe 10 kA m 3 3 0 6 5 T 30 65 kG 30 65 kOe 2500 5500 kA m 2 1 T 10 kG 10 kOe 1000 kA m 1 100 mT 1 kG 1 kOe 100 kA m AC field measurement 0 10 mT 100 G 100 Oe 10 kA m 9 12 2 ...

Страница 78: ...the current measuring value Identical with MEAS Mode Query Parameter none Response Measuring Value RST Value not relevant Example send READ LF receive 2 546313e 01 CR LF 9 12 2 6 MEAS Description Query the current measuring value Identical with READ Mode Query Parameter none Response Measuring value RST Value not relevant Example send MEAS LF receive 2 546313e 01 CR LF Trial Version Subject to cha...

Страница 79: ...erved 9 12 2 7 UNIT Description Set or query the physical unit of the measuring value Mode Command or query Parameter TESL APM GAUS OE G T A O TESL T Unit is Tesla APM A Unit is A m GAUS G Unit is Gauss OE O Unit is Oersted Response The unit in long form TESL APM GAUS OE RST Value TESL Example send UNIT TESL LF send UNIT LF receive TESL CR LF Trial Version Subject to change ...

Страница 80: ... NULL LF 9 12 3 2 PEAK FAST READ Description Query the largest value of minimum and maximum of the fast peak value detection according to its absolute value Mode Query Parameter none Response Measuring value RST Value not relevant Example send PEAK FAST READ LF receive 9 23455e 00 CR LF 9 12 3 3 PEAK FAST READ MIN Description Query the minimum value of the fast peak value detection Mode Query Para...

Страница 81: ...READ LF receive 9 11111e 00 CR LF 9 12 3 5 PEAK SLOW READ Description Query the largest value of minimum and maximum of the slow peak value detection according to its absolute value Mode Query Parameter none Response Measuring value RST Value not relevant Example send PEAK FAST READ LF receive 9 23455e 00 CR LF 9 12 3 6 PEAK SLOW READ MIN Description Query the minimum values of the slow peak value...

Страница 82: ...asuring value RST Value not relevant Example send PEAK FAST READMAX LF receive 9 11111e 00 CR LF 9 12 4 Probe Functions 9 12 4 1 PROB NAME Description Query the probe name Mode Query Parameter none Response Name RST Value not relevant Example send PROB NAME LF receive T02 047 33 13 CR LF 9 12 4 2 PROB SN Description Query the serial number of the probe Mode Query Parameter none Response Serial num...

Страница 83: ...y Parameter none Response Probe type RST Value not relevant Example send PROB TYPE LF receive 0 CR LF 9 12 4 4 PROB CAL Description Query the calibration data of the probe Mode Query Parameter none Response Calibration data RST Value not relevant Example send PROB CAL LF receive CAL 09 2012 CR LF Type Type 0 Transversal standard 1 Axial standard 2 Calibration probe 3 Transversal high field 4 Axial...

Страница 84: ...ponse none RST Value not relevant Example send PAR SAVE LF 9 12 5 2 PAR SAVW Description Save parameters units and ranges in non volatile memory After that the parameter status will be returned Mode Query Parameter none Response 0 1 1 Storage error RST Value not relevant Example send PAR SAVW LF receive 0 CR LF 9 12 5 3 PAR DEFA Description Parameters units and ranges are reset to default Mode Com...

Страница 85: ...one Response Serial number RST Value not relevant Example send SN UNIT LF receive 010110078 CR LF 9 12 6 2 SN SW Description Query the software version of the device Mode Query Parameter none Response Software version RST Value not relevant Example send SN SW LF receive 021111 CR LF 9 12 6 3 SN HW Description Query the hardware version of the device Mode Query Parameter none Response Hardware vers...

Страница 86: ... the error queue The oldest message of the error queue will be returned and deleted from the error queue If there is no error the text 0 No error will be displayed The single errors are described in detail in the table of error messages Mode Query Parameter none Response Error text RST Value not relevant Example send SYST ERR LF receive 522 Output buffer overflow CR LF 9 12 6 6 SYST RUN Descriptio...

Страница 87: ...end SERI COMA BAUD 19K2 LF send SERI COMA BAUD LF receive 19K2 CR LF 9 12 7 2 SERI COMA STOP Description Set or query the number of stop bits for the EIA 232 interface Mode Command or query Parameter 1 2 Response like parameter RST Value not relevant Example send SERI COMA STOP 2 LF send SERI COMA STOP LF receive 2 CR LF 9 12 7 3 SERI COMA PARY Description Set or query the character parity of the ...

Страница 88: ...ERI COMA MODE LF receive SCPI CR LF 9 12 7 5 SERI COMB BAUD Description Set or query the bit rate of the EIA 485 interface Mode Command or query Parameter 1200 2400 4800 9600 14K4 19K2 38K4 Response like parameter RST Value not relevant Example send SERI COMB BAUD 19K2 LF send SERI COMB BAUD LF receive 19K2 CR LF 9 12 7 6 SERI COMB MODE Description Set or query the operating mode of the EIA 485 in...

Страница 89: ... of 0 31 Response like parameter RST Value not relevant Example send SERI COMB ADR 12 LF send SERI COMB ADR LF receive 12 CR LF 9 12 7 8 IP IP1 IP IP4 Description Set or query the IP address of the LAN interface IP1 is the most significant part of the IP address The whole address has the following structure IP1 IP2 IP3 IP4 Mode Command or query Parameter Value within the range of 0 255 Response li...

Страница 90: ...in the range of 0 255 Response like parameter RST Value not relevant Example send IP MAS1 255 LF send IP MAS1 LF receive 255 CR LF 9 12 7 10 DGIO IN1 DGIO IN3 Description Query the digital input state Mode Query Parameter none Response 0 1 1 if the input is current carrying RST Value not relevant Example send DGIO IN1 LF receive 1 CR LF 9 12 7 11 DGIO IN Description Query the states of all digital...

Страница 91: ...t NLPK Setting this input will reset the peak values with rising edge NULL Setting this input will zero compensate the input with edge Response like parameter RST Value not relevant Example send DGIO SET IN2 FUNC NLPK LF send DGIO SET IN2 FUNC LF receive NLPK CR LF 9 12 7 13 DGIO SET IN x LOG Description Set or query the logic level of a digital input x is for inputs 1 to 3 Mode Command or query P...

Страница 92: ...ng value is within the range of upper and lower limit values IFOU This output is set if the measuring value exceeds the range of lower and upper limit values IFOV This output is set if the measuring range has been exceeded IFRN This output is set if the device is ready to measure Response like parameter RST Value not relevant Example send DGIO SET OUT2 FUNC IFOV LF send DGIO SET OUT2 FUNC LF recei...

Страница 93: ... 12300 0 Oersted Oe 12 3 kOe 12300 0 Response like parameter RST Value not relevant Example send DGIO SET OUT2 LOW 1234 56 LF send DGIO SET OUT2 LOW LF receive 1234 56 CR LF 9 12 7 17 DGIO SET OUT x HIGH Description Set or query the upper limit value for the limit value check of each output x represents outputs 1 to 4 Only relevant for the selected compare operation Mode Command or query Parameter...

Страница 94: ...ng PKNL Reset peak values NULL Zeroing the probe Response like parameter RST Value not relevant Example send KEYS TOP FUNC RANG LF send KEYS TOP FUNC LF receive RANG CR LF 9 12 7 19 KEYS BOT FUNC Description Set or query the function of the lower key NEXT on the front panel Mode Command or query Parameter NO RANG PKNL NULL Parameter Function NO No function assigned to this key RANG Range switching...

Страница 95: ...the command 224 Illegal parameter value SCPI error Invalid parameter has been detected Check the command 350 Too many errors Error queue is full 522 Output buffer overflow Output buffer for interface is too small Check the command 100 Param memory error Parameter memory data are inconsistent Check the parameter settings 101 Probe parameter error Calibration data of the measuring probe cannot be qu...

Страница 96: ...xternal controller and of the device Possibly the transmission path is disturbed 302 EIA485 overrun error Character overrun error on the serial interface EIA 485 Possibly reduce the bit rate 303 EIA485 buffer overflow Buffer overflow on the serial interface EIA 485 Possibly reduce the bit rate Check the command 304 EIA485 checksum error BCC character error on the serial interface EIA485 Check the ...

Страница 97: ...ghts Reserved 11 Unit Conversion Table This table shows the relationship between the displayed measuring values Dimension Unit Displ ay Conversion Mag flux density B SI Tesla T G 10 T 1 4 Flux density CG S Gauss G T 10 G 1 4 Mag field strength H SI Ampere Met er A m Oe 1000 4 m A 1 1 π Mag field strength CG S Oersted Oe 1 m A 4 1000 Oe 1 π Trial Version Subject to change ...

Страница 98: ...o 55 C 80 relative humidity non condensing Storage 40 C to 70 C Housing Dimensions approx 72 0 89 7 62 2 mm3 W H D Weight approx 150 g without probe Mounting on top hat rail DIN rail according to EN 50022 35 mm 7 5 mm Warranty 2 years Accessories Data storage device with user manual connector CE certificate Mathematical Functions Conversion of units and derived parameters Linearization of the prob...

Страница 99: ...EC type 1 current sinking common reference potential Nominal voltage Type 24 V DC with 5 mA Rin typically 4 8 kΩ Polarity Plus or minus Max allowed permanent voltage 25 5 V DC Impulse voltage 35 V DC for 0 5 s Electric separation Galvanic separation 250 V AC for 1 minute Logic 1 min 4 0 V DC Logic 0 max 2 5 V DC Function Individually selectable for each input via parametrization Connector Via a co...

Страница 100: ...to norm EN VDE test points Connection of the common conductor via the current supply connector Measuring Properties Meas method Continuous recording of the magnetic field conversion via 16 bit A D converter Evaluation via 16 bit microprocessor system Display refresh time 100 ms Display resolution Depending on range 3 to 4 digit Frequency range DC AC 0 Hz 5 kHz effective value Meas inaccuracy Accur...

Страница 101: ... Oe 10 kA m 10 A m 4 5 T 10T 10 mT 45 kG 100 kG 100 G 45 kOe 100 kOe 100 Oe 3800 kA m 8500 kA m 10 kA m 1 T 1 mT 10 kG 10 G 10 kOe 10 Oe 1000 kA m 1 kA m 100 mT 100 µT 1 kG 1 G 1 kOe 1 Oe 100 kA m 100 A m Meas ranges Fast pulse meas resolution with high field probe 10 mT 10 µT 100 G 100 mG 100 Oe 100 mOe 10 kA m 10 A m Peak hold tsignal 1 ms Standard transversal and axial probes see data sheets Hi...

Страница 102: ...t Adresse Rohwedderstr 7 44369 Dortmund Germany Declares under sole responsibility that the product as originally delivered Erklärt unter der Voraussetzung dass das Gerät dem Auslieferungszustand entsprechend Déclarons sous notre seule responsabilité que le produit Product Name Produkt Name Nom du produit MAGSYS GAUSSMETER Model Number Modell Nummer Référence commerciale IGM11 Product Options Prod...

Страница 103: ...quate or insufficient maintenance on the part of the buyer due to unauthorized modifications or maloperat ion to software or interfaces provided by the buyer or to operations beyond normal ambient conditions The buyer is solely responsible for design and assembly of electric circuits in connection with this product MAGSYS magnet systeme GmbH cannot be made liable neither for customers circuits nor...

Страница 104: ...1 MAX 82 MIN 81 RANG SET 77 RANGe 77 READ 78 SERI COMA BAUD 87 MODE 88 PARY 87 STOP 87 COMB ADR 89 BAUD 88 MODE 88 STAT MEAS ENAB 75 EVEN 75 PRES 74 QUES ENAB 74 EVEN 74 SYST ERR 86 RUN 86 UNIT 79 A AC Field Measurements 29 Accuracy 16 Address Byte 54 B BCC Generation 53 Blanks 63 Boolean Parameter 64 Brief Introduction 8 Bus Protocol Description 52 Buttons 24 C Cable Details 50 Character 62 Chara...

Страница 105: ...rties 11 M Main Commands 68 76 Measurement Details 14 Measurement Settings 36 Measuring 8 Measuring Range 9 27 Measuring Unit 9 28 Memory Functions 70 84 N Non linear properties 12 Null Balance 26 Numerical Parameter 64 O Operation 24 Output Data 65 P Parameter Separator 63 Path Separator 62 Peak Value Function 80 Peak Value Functions 69 Peak Value Measurement 31 Ports 19 Potential Equalization De...

Страница 106: ... MAGSYS magnet systeme GmbH All Rights Reserved T Table of Contents 3 Table of Illustrations 5 Technical Data 98 Telegram Exchange 54 Telegram Length 53 Telegram Syntax 52 U Units 97 USB Interface 21 User Data 62 W Wiring Details 50 Wiring of the Inputs 43 Wiring of the Outputs 44 Trial Version Subject to change ...

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