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ME-MultiSig 1.5E - SisNova Engineering GmbH

1. 69 D Bibliography 70 E Index 71 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 5 Introduction 1 Introduction Valued customer Thank you for purchasing an innovative high technology product that left our premises in a fully functional and new condition Please take the time to examine the contents of the package for any loss or damage that may have occurred during shipping If there are any parts missing or if an item is damaged please con tact Meilhaus Electronic immediately 1 1 Package Contents We take great care to make sure that the package is complete in every way We do ask that you take the time to examine the con tents of the box Your box should consist of Base board s depending on model and level of expansion Analog multiplexer board s as master ME MUX32 M and optional slave s ME MUX32 S or demultiplexer board ME DEMUX32 or signal conditioning board ME SIG32 Two plug on bridge modules per base board for operation without signal conditioning modules except ME SIG32 One 40 pin flat ribbon cable per slave board for master to slave and or slave to slave connection 5 jumpers Optional Plug On modules for signal c
2. Base board for signal conditioning on up to 32 inputs without multiplexing and gain ME DIFF16 Signal conditioning module with 16 differential voltage inputs models available with the input ranges 10V 20V 50V R i 3 75M or 50V R i 50M ME Current16 Signal conditioning module with 16 current inputs 0 20mA ME RTD8 Signal conditioning module for 8 RTDs with 2 3 or 4 wire connectivity versions for Pt100 Pt500 or Pt1000 ME TE8 Signal conditioning module for 8 thermocouples of type J K T E R S B N ME Proto Prototyping breadboard module for custom specific signal conditioning Table 3 Hardware overview Board type ST9 10 Remark Table 2 Supported boards from other suppliers Rev 1 5E Manual ME MultiSig Hardware Page 10 Meilhaus Electronic 2 Hardware 2 1 General Notes Attention Make sure that no contact with voltage carrying parts can happen by the wiring of the board The external connections to the board should only be made or removed in a powered down state Make sure to follow the guide lines for electrostatic sensitive devices If you do not use any signal conditioning modules you have to plug on one bridge module per group between ST5 and 6 group A or ST7 and 8 group B Inputs of the base boards and plug on modules that are not used should always be connected to signal GND 2 2 Pullup Pulldown Resistors
3. UM Voltage measured between U and U IM real constant measuring current must be measured by the user between IOut and GND see above V Gain factor depending on module type Pt100 V 40 Pt500 V 8 Pt1000 V 4 R0 is the nominal value of the resistance at 0 C The mean tem perature coefficient between 0 C and 100 C represents the average change of resistance referred to the nominal value at 0 C Sensor type Temperature coef cient Nominal value R0 Pt100 0 4 K 100 000 Pt500 2 0 K 500 000 Pt1000 4 0 K 1000 000 Table 5 Sensor characteristics RM UM IM V formula 1 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 41 Hardware For a Pt100 the nominal value is R0 100 000 It generates a voltage drop of 50 mV which is measured by the ME RTD8 module with very high accuracy 1 For the calculation a difference has to be made between the 200 0 C and the 0 850 C range For the range 200 0 C a third degree polynomial is used R t R0 1 A x t B x t2 C x t 100 C x t3 formula 2 For the range 0 850 C a second degree polynomial is used R t R0 1 A x t B x t2 formula 3 with the coefficients A 3 9083 x 10 3 C 1 B 5 775 x 10 7 C 2 C 4 183 x 10 12 C 4 The following formula describes the relation of the electric resistance and the temperature for temperatures greater than
4. For maintenance or identification purposes the address LED of the base boards ME MUX32 M and ME MUX32 S can be activated The control bits D10 and D9 must be set to 1 for this Note that this will leave the gain factor unchanged Switching on the LED 1 Preparation release the reset bit set the bits D10 and D9 to 1 set the write signal to 1 address the base board with address 7 for example and set bit D0 to 1 2 Take over on the negative edge of the write signal the LED will be switched on Diagram 33 Switching on the address LED Switching off the LED 1 Preparation release the reset bit set the bits D10 and D9 to 1 set the write signal to 1 address the base board with address 7 for example and set bit D0 to 0 2 Take over on the negative edge of the write signal the LED will be switched off Diagram 34 Switching off the address LED 0F0Fhex 1 11 10 9 8 7 6 5 4 3 2 1 0 2 0E0Fhex 1 1 1 1 0 x x x x 1 1 1 1 1 1 1 1 x x x x 1 1 1 Set address LED Base board 0 7 0F0Ehex 1 11 10 9 8 7 6 5 4 3 2 1 0 2 0E0Ehex 1 0 1 1 0 x x x x 1 1 1 1 0 1 1 1 x x x x 1 1 1 Set address LED Base board 0 7 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 53 Programming 3 4 General Reset Using the reset bit you can reset all master and slave boards with a single control word 0000hex Basic st
5. Meilhaus Electronic Page 23 Hardware 2 3 9 Operating Mode Multi MUX The operating mode Multi MUX allows you to multiplex 16 channels groupwise into the PC DAQ board s A D channels 0 15 For this mode you have to set the soldering bridge B on the master board for the channels 0 15 as shown in diagram 13 This will be set Master board channel group A to PC board A D channel 0 Master board channel group B to PC board A D channel 1 Slave board 1 channel group A to PC board A D channel 2 Slave board 1 channel group B to PC board A D channel 3 etc see also diagram 14 and 15 Group A master board slave boards no soldering bridges Group B master board slave boards no soldering bridges Diagram 13 Soldering bridges Multi MUX 12 13 10 11 8 9 6 7 4 5 2 3 0 1 14 15 B B B B B B B B B B B B B B B B 28 29 26 27 24 25 22 23 20 21 18 19 16 17 30 31 Rev 1 5E Manual ME MultiSig Hardware Page 24 Meilhaus Electronic 2 3 9 1 Block Diagram Multi MUX Master Board Diagram 14 Block diagram Multi MUX master board 16 to 1 16 to 1 78 pin D sub male Each channel group is assigned to an analog input channel single ended of the DAQ board channel 0 15 Master ME MUX32 M Signal conditioning plug on module optional Signal conditioning plug on module optional MUX A MUX B Channel group
6. U U 0 7 1 2 3 4 5 6 TE Type Jumper set Type B R S T JPx1 Type K N JPx2 default Type E J JPx3 x jumper number 1 8 channel number 1 Jumper TR T0 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 43 Hardware The module uses the Mux channels 0 7 for the thermocouples and Mux channel 8 for measuring the reference temperature TR at the terminal For calculation of the temperature see chapter 2 6 6 4 on page 46 2 6 6 1 Basics of Thermocouples With thermocouples the electron flow in an electric conductor is used when it is within a temperature gradient Now the voltage difference is measured which depends of the temperature gap and the properties of the conductor material in size and direction Between the both conductor edges a voltage potential will be ex tended which results from the temperature gradient along the complete length of the conductor 3 A disturbing effect occurs when connecting the wire edges to the signal conditioning circuitry e g ME TE8 First the thermo couple can only measure the temperature gap T T0 TR bet ween measuring junction and reference junction terminal Second the standardization DIN EN 60584 refers to a reference temperature of 0 C Because of the real reference temperature is different of it as a rule it must be compensated so called refe rence junction compensation Diagram 30 Reference junct
7. 10 V ME Diff16 50V 50M input range 50 V input resistance 50 M accuracy typ 3 4 dynamic signals max 1 kHz at 50 V Connectors 18pin terminal STMx on the module plus 18pin terminal STx on the base board Plug On Module ME Current16 Measurement channels 16 differential channels Input range 0 20 mA Input resistance 499 0 1 Accuracy typ 0 15 Connectors 18pin terminal STMx on the module plus 18pin terminal STx on the base board Rev 1 5E Manual ME MultiSig Specifications Page 64 Meilhaus Electronic Plug On Module ME RTD8 Measurement channels 8 channels for PTC RTD sensors Connectivity 2 wire 3 wire or 4 wire Gain factor fixed depending on module type Pt100 V 40 Pt500 V 8 Pt1000 V 4 Sensor type fixed depending on module type Pt100 R0 0 C 100 000 0 4 K Pt500 R0 0 C 500 000 2 0 K Pt1000 R0 0 C 1000 000 4 0 K Temperature range 200 850 C Constant measurement current typ 500 A Accuracy after determination of actual measurement current 1 C Input resistance gt 200 G Connectors 18pin terminal STMx on the module plus 18pin terminal STx on the base board Plug On Module ME TE8 Measurement channels 8 channels for thermocouples according to DIN EN 60584 Connectivity 2 wire Connectors 18pin terminal STMx on the module Sensor types J T K E N S R B tpye selectable by jumper for each channel Gain factors B R S
8. Chan 0 Note The maximum possible channel number depends on the number of A D channels your PC DAQ board offers Take care that there is no soldering bridge set on slave boards 12 13 10 11 8 9 6 7 4 5 2 3 0 1 14 15 A 28 29 26 27 24 25 22 23 20 21 18 19 16 17 30 31 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 21 Hardware 2 3 8 1 Block Diagram Single MUX Master Board Diagram 11 Block diagram Single MUX master board Signal conditioning plug on module optional 16 to 1 16 to 1 Signal conditioning plug on modul optional 78 pin D sub male DAQ board A D channel single ended preselected Channel 0 16 to 1 Master ME MUX32 M MUX C MUX A MUX B Channel group A Channel group B A D or multi I O board DAQ lines Signal GND CH0 CH15 DAQ lines Signal GND CH16 CH31 Internal bus K16 31 A K0 K1 15 Rev 1 5E Manual ME MultiSig Hardware Page 22 Meilhaus Electronic 2 3 8 2 Block Diagram Single MUX Slave Board Diagram 12 Block diagram Single MUX slave board 16 to 1 16 to 1 Optional Slave 1 7 ME MUX32 S Signal conditioning plug on module optional Signal conditioning plug on module optional MUX A MUX B Channel group A Channel group B DAQ lines Signal GND CH0 CH15 DAQ lines Signal GND CH16 CH31 Internal bus K0 15 K16 31 Manual ME MultiSig Rev 1 5E
9. Rev 1 5E Meilhaus Electronic Page 61 Specifications Appendix A Specifications Base Board ME MUX32 M Master Analog input channels 32 total in 2 groups A B of 16 channels each Gain factors V 1 10 100 Accuracy at V 1 typ 0 15 at FS 10 V Accuracy at V 10 typ 0 2 at FS 1 V Accuracy at V 100 typ 0 5 at FS 100 mV Dynamic signals V 1 max 400 kHz at 10 V V 10 max 100 kHz at 1 V V 100 max 40 kHz at 100 mV Multiplexer switching time 300 ns Operating modes Single MUX max 256 inputs multiplex ed into one A D channel Multi MUX the 16 channels of a group multiplexed into separate A D channels Connector DAQ board 78 pin D sub male connector ST9 or ST10 Connector power supply 3 screw terminals plugable for power supply Connector signals 2 x 18pin terminal plugable Master slave connection Internal bus via 40 pin flat ribbon cable Base Board ME MUX32 S Slave Analog input channels 32 total in 2 groups A B of 16 channels each Gain factors V 1 10 100 Accuracy at V 1 typ 0 15 at FS 10 V Accuracy at V 10 typ 0 2 at FS 1 V Accuracy at V 100 typ 0 5 at FS 100 mV Dynamic signals V 1 max 400 kHz at 10 V V 10 max 100 kHz at 1 V V 100 max 40 kHz at 100 mV Multiplexer switching time 300 ns Connector power supply 3 screw terminals plugable for power supply Connector signals 2 x 18pin terminal plugable
10. T V 270 270270270 K N V 140 845070423 E J V 107 526881720 Gain error typ 0 01 Linearization error typ 3ppm Input offset voltage typ 1 V Input bias current typ 2 5pA Sensor for reference junction compensation Type Semiconductor sensor V 4 Linearity factor 10 0mV C Offset 500mV Accuracy max 3 5 C Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 65 Specifications General Input range 18 36 V typ 24 V Power consumption base board typ 60 mA modules typ 60 mA Size base board 250 x 100 mm L x W without card carrier Size modules 72 x 87 mm L x W Mounting incl card carrier for DIN rails Height incl card carrier without modules and connectors 67 mm Height incl card carrier modules and connectors ca 150 mm Operating temperature 0 70 C Storage temperature 0 50 C Humidity 20 55 non condensing CE Certification EG guidelines 89 336 EMC Emission EN 55022 Noise immunity EN 50082 2 Rev 1 5E Manual ME MultiSig Pinouts Page 66 Meilhaus Electronic B Pinouts Connecting multi I O DAQ boards depending on the model B1 78 pin D Sub Male Connector ST9 Connector for boards of type ME 2000 2600 3000 and some boards of other manufacturers see table 2 on page 8 Diagram 42 Pinout 78 pin D sub male connector ST9 Index corresponds with the bit number of the MultiSig control lines 59 58 57 56 55 54 53 52 51 50
11. 0 C RM Calculated resistance in from formula 1 t Temperature in C R0 A B Parameters according to DIN EN 60751 ITS 90 see above t R0 A R0 A 2 4 R0 B R0 RM 2 R 0 B formula 4 Rev 1 5E Manual ME MultiSig Hardware Page 42 Meilhaus Electronic 2 6 6 Modul ME TE8 Plug On module for temperature measurement with thermo couples of type J T K E N S R B according to DIN EN 60584 The sensor type used can be set by the jumpers JPx1 3 for each channel separately see diagram 29 For reference junction com pensation a sensor is placed near connector STM1 The measure ment is always in differential mode with 2 wire connectivity Diagram 29 ME TE8 The wires of the thermocouples are applied to the clamps on terminal STM1 The positive lines of each thermocouple will be connected to the clamps U and the negative lines to the clamps U ST1 remains not connected Unused input channels U and U on STM1 should be short circuited On demand the shield can be connected to Signal GND 8V 8V Signal GND ST9 ME 2x00 3000 ST10 ME 4000 series ST11 ST1 ME TE8 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 STM1 24V 0V Signal GND
12. After power up the digital ports of most of the boards are configured as input ports i e tristate To force the digital lines 0 11 into a defined state they are equipped with plugable pulldown default resp pullup resistors see also chap 2 2 on page 10 This will set all base boards into their basic status see chap 3 4 As a rule the digital ports are configured as inputs after power up i e the pins are tristate However to get a defined state after power up pullup resp pulldown resistors are provided for the base boards ME MUX32 M and ME DEMUX32 not necessary for ME MUX32 S and ME SIG32 They are realized as resistor arrays RN1 RN2 with sockets For a pulldown configuration the com mon pin of the array marked with a dot as a rule has to be plug ged into the socket pin marked with a sign For pullup configuration the common pin of the array has to be plugged into the socket pin marked with a sign see diagram 2 Depen ding on the combination of PC DAQ board and base board the resistor arrays have to be plugged in the right way Doing this ta ke notice of the following table Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 11 Hardware Positioning of the resistor arrays Diagram 2 Resistor arrays Board Type Base Board ST9 10 RN1 RN2 ME 2000 2600 3000 ME MUX32 M ST9 Pulldown Pulldown ME DEMUX32 ST9 Pulldown ME 4600 Series with out opto isolation ME MUX32 M
13. Master slave connection Internal bus via 40 pin flat ribbon cable Rev 1 5E Manual ME MultiSig Specifications Page 62 Meilhaus Electronic Base Board ME DEMUX32 Analog output channels 32 total in 2 groups A B of 16 channels each Dynamic signals max 2 MHz at 10 V Current per channel max 25 mA Forward resistance lt 100 Operating modes D A channel demultiplexed into 32 analog outputs Connector DAQ board 78 pin D sub male connector ST9 or ST10 Connector power supply 3 screw terminals plugable for power supply Connector signals 2 x 18pin terminal plugable Multiplexer switching time 300 ns Base Board ME SIG32 Analog input channels 16 or 32 depending on PC DAQ board s number of A D channels Connector DAQ board 78 pin D sub male connector ST9 or ST10 Connector power supply 3 screw terminals plugable for power supply Connector signals 2 x 18pin terminal plugable Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 63 Specifications Plug On Module ME Diff16 Measurement channels 16 differential channels ME Diff16 10V input range 10 V input resistance gt 200 G accuracy typ 0 3 dynamic signals max 15 kHz at 10 V ME Diff16 20V input range 20 V input resistance gt 20 M accuracy typ 0 8 dynamic signals max 2 5 kHz at 10 V ME Diff16 50V 3 75M input range 50 V input resistance 3 75 M accuracy typ 0 8 dynamic signals max 2 5 kHz at
14. Meilhaus Electronic Manual ME MultiSig 1 5E ME MUX32 ME DEMUX32 ME SIG32 Analog Multiplexing Demultiplexing System with optional Signal Conditioning Modules up to 8192 Channels Imprint Manual ME MUX32 ME DEMUX32 ME SIG32 Revision 1 5E Revised 22 June 2005 Meilhaus Electronic GmbH Fischerstra e 2 D 82178 Puchheim Munich Germany http www meilhaus com Copyright 2005 Meilhaus Electronic GmbH All rights reserved No part of this publication may be reproduced or distributed in any form whether photocopied printed put on microfilm or be stored in any electronic media without the expressed written consent of Meilhaus Electronic GmbH Important note The information contained in this manual has been reviewed with great care and is believed to be complete and accurate Meilhaus Electronic assumes no respon sibility for its use any infringements of patents or other rights of third parties which may result from use of this manual or the product Meilhaus Electronic as sumes no responsibility for any problems or damage which may result from errors or omissions Specifications and instructions are subject to change without notice Borland Delphi is a trademark of Borland International Inc Turbo Borland C is a trademark of Borland International Inc Visual C and Visual Basic are trademarks of the Microsoft Corporation VEE Pro and VEE OneLab are trademarks of Agilent Technologies ME VEC and ME FoXX ar
15. PC DAQ board D A channel into max 32 output channels The demultiplexing board ME DEMUX32 is directly connected to your D A or multi I O board supported boards see page 8 Connect your Meilhaus board using a 1 1 cable ME AK D78 to ST9 ME 2600 3000 resp ST10 ME 4600 series If you use PC DAQ boards from other manufacturers special cables are required see also table 2 The PC board s analog output channel used for demultiplexing always has to be D A channel 0 or A Depending on the board model connector ST9 or ST10 is used and the soldering bridge J3 has to be set according to the picture below ME 2600 3000 connection D ME 4600 series connection E Diagram 17 Soldering bridge J3 Some board types e g ME 2600 3000 may have a sense line e g D A Sense A for each D A channel This sense line has to be connected to the output of the first D A channel e g D A Out A on the demultiplexer board side To do so you can use the D Sub female connector ST11 for example Please read the chapter refering to the wiring of the D A channels in your DAQ board user manual Custom specific user signal conditioning modules based on the prototyping module can be plugged on instead of the standard bridge module at any time Configurations with up to 256 outputs are available on request Please contact our technical sales team at sales meilhaus com D A channel 0 from ST9 pin 15 J3 D A channel 0 from ST10 pi
16. ST10 Pulldown Pulldown ME DEMUX32 ST10 Pulldown ME 4600i Series with opto isolation ME MUX32 M ST10 Pullup Pulldown ME DEMUX32 ST10 Pullup ME 4600i Series with opto isolation and ME AA4 3i ME MUX32 M ST10 Pullup Pullup ME DEMUX32 ST10 Pullup see note in table 1 on page 8 Table 4 Resistor arrays ST9 ST10 15V 15V ST11 RN2 D11 8 RN1 D7 0 Pullup Pulldown Rev 1 5E Manual ME MultiSig Hardware Page 12 Meilhaus Electronic 2 3 Model Multiplexer 2 3 1 Multiplexer Master Board ME MUX32 M Diagram 3 Multiplexer master board ME MUX32 M DAQ board Remaining DAQ board signals MUX C MUX B MUX A R57 R58 internal bus internal bus PE 24V Adress LED 0V ST1 ST2 ST4 ST3 ST5 ST6 ST7 ST8 ST9 ME 2x00 3000 ST10 ME 4000 series ST12 15V 15V Channel group B 16 inputs Signal GND CH0 CH15 Channel group A 16 inputs Signal GND CH0 CH15 ST11 ME MUX32 M Soldering bridge area CH0 15 Soldering bridge area CH16 31 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 13 Hardware 2 3 2 Multiplexer Slave Board ME MUX32 S Diagram 4 Multiplexer slave board ME MUX32 S ME MUX32 S MUX B MUX A R57 R58 internal bus internal bus PE 24V J1 J1 J2 ST1 ST2 ST4 ST3 ST5 ST6 ST7 ST8 ST12 ADR 15V 15V
17. plug on module CH16 31 optional 78 pin D sub male Base board signal conditioning ME SIG32 C CH0 15 Channel group A Channel group B A D or multi I O board DAQ lines Signal GND CH0 CH15 DAQ lines Signal GND CH16 CH31 CH16 31 C The measurement input channels are connected 1 1 to the DAQ board A D channels single ended channels 0 15 and or 0 31 via signal conditioning modules Rev 1 5E Manual ME MultiSig Hardware Page 32 Meilhaus Electronic 2 6 Plug On Modules All base boards except the ME SIG32 are supplied with bridge modules i e no signal conditioning function As an option up to 2 plug on modules for signal conditioning can be added per base board of type ME MUX32 M ME MUX32 S and ME SIG32 Using two different plug on modules on one base board is also possible The power supply 24V is provided by the base board Supply conditioning is done directly on the module Important note If plug on modules are used a gain setting of V 1 should be used on the base board to avoid damage of your DAQ board 2 6 1 Calculating the measured values The output voltage range UN of all modules towards the board is standardized to 10V Adapt the input voltage range of your DAQ board as a rule 10V ME Diff16 The voltage UM calculates as follows see diagram 21 and 23 UFS should be the voltage difference U U at full scale depending on the chosen module type 10
18. slave 1 3 Master Analog channel ADR 1 1 2 4 Slave 1 Base address J1 J2 S1A S1B S2A S2B S3A S3B S4A S4B S5A S5B S6A S6B S7A S7B Analog channel ADR 2 1 2 4 Slave 2 Base address J1 J2 S1A S1B S2A S2B S3A S3B S4A S4B S5A S5B S6A S6B S7A S7B Analog channel ADR 3 1 2 4 Slave 3 Base address J1 J2 S1A S1B S2A S2B S3A S3B S4A S4B S5A S5B S6A S6B S7A S7B No jumper settings required Base address is always 0 Rev 1 5E Manual ME MultiSig Hardware Page 18 Meilhaus Electronic Jumper settings continued Diagram 8 Jumper settings slave 4 8 Analog channel ADR 7 1 2 4 Slave 7 Base address J1 J2 S1A S1B S2A S2B S3A S3B S4A S4B S5A S5B S6A S6B S7A S7B Analog channel ADR 6 1 2 4 Slave 6 Base address J1 J2 S1A S1B S2A S2B S3A S3B S4A S4B S5A S5B S6A S6B S7A S7B Analog channel ADR 5 1 2 4 Slave 5 Base address J1 J2 S1A S1B S2A S2B S3A S3B S4A S4B S5A S5B S6A S6B S7A S7B Analog channel ADR 4 1 2 4 Slave 4 Base address J1 J2 S1A S1B S2A S2B S3A S3B S4A S4B S5A S5B S6A S6B S7A S7B Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 19 Hardware 2 3 6 Gain The base boards of type ME MUX32 M and ME MUX32 S offer a signal amplifier on the base board which is independent fr
19. 4 Input channels you will not use have to be short circuited 15V 15V 24V 0V Signal GND Signal GND n c STM1 15V 15V ST9 ME 2x00 3000 ST10 ME 4000 series ST11 ST1 0 ME Current16 0 15 1 2 IM I I Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 37 Hardware 2 6 5 Module ME RTD8 Plug On module for temperature measurement with platinum resistors PTC according to DIN EN 60751 Depending on the model see coding on the module backside up to 8 sensors Pt100 0 4 K Pt500 2 0 K or Pt1000 4 0 K can be connected The temperature range is 200 850 C The measurement method is differential with 2 3 or 4 wire connectivity This helps to transmit the signal as clean as possible to your PC Diagram 25 ME RTD8 The output of the module is always a bipolar voltage value UN in the range of 10V see curve in diagram 21 Signal GND is not connected The wires of the temperatur sensors are connected to the corresponding clamps on the terminals ST1 and STM1 sensor connectivity see page 38 and following The channels 0 7 of each group will be used Unused input channels U and U on STM1 should be short circuited do not connect IOut and GND 15V 15V 24V 0V Signal GND Signal GND n c STM1 15V 15V ST9 ME 2x00 3000 ST10 ME 4000 series ST11 ST1 ME RTD8 U U IO
20. 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Signal GND AD_1 AD_3 AD_5 AD_7 DA_0 DA_2 PC_GND n c UP DOWN_A PC_GND DIO_A1 DIO_1 DIO_A3 DIO_3 DIO_A5 DIO_5 DIO_A7 DIO_7 DIO_A9 DIO_9 DIO_A11 DIO_11 DIO_A13 DIO_A15 n c AD_0 AD_2 AD_4 AD_6 Signal GND DA_1 DA_3 PWM_OUT GATE_A CLK_A DIO_A0 DIO_0 DIO_A2 DIO_2 DIO_A4 DIO_4 DIO_A6 DIO_6 DIO_A8 DIO_8 DIO_A10 DIO_10 DIO_A12 DIO_A14 Signal GND Signal GND AD_9 AD_11 AD_13 AD_15 DA_Sense_0 DA_Sense_2 EXT_TRIG_DA EXT_TRIG_AD UP DOWN_B n c DIO_B1 DIO_B3 DIO_B5 DIO_B7 DIO_B9 DIO_B11 DIO_B13 DIO_B15 n c 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 AD_8 AD_10 AD_12 AD_14 Signal GND DA_Sense_1 DA_Sense_3 EXT_IRQ GATE_B CLK_B DIO_B0 DIO_B2 DIO_B4 DIO_B6 DIO_B8 DIO_B10 DIO_B12 DIO_B14 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 67 Pinouts B2 78 pin D Sub Male Connector ST10 Connector for boards of the ME 4600 series Diagram 43 Pinout 78 pin D sub male connector ST10 Index
21. 5 2 3 5 Jumper Settings 17 2 3 6 Gain 19 2 3 7 Power Supply 19 2 3 8 Operating Mode Single MUX 20 2 3 8 1 Block Diagram Single MUX Master Board 21 2 3 8 2 Block Diagram Single MUX Slave Board 22 2 3 9 Operating Mode Multi MUX 23 2 3 9 1 Block Diagram Multi MUX Master Board 24 2 3 9 2 Block Diagram Multi MUX Slave Board 25 2 4 Model Demultiplexer 26 2 4 1 Demultiplexer Base Board ME DEMUX32 26 2 4 2 Operating Mode Demux 27 2 4 3 Block Diagram Demux 28 2 5 Model Signal Conditioning 29 2 5 1 Signal Conditioning Base Board ME SIG32 29 2 5 2 Operating Mode Signal Conditioning 30 2 5 3 Block Diagram Signal Conditioning 31 Rev 1 5E Manual ME MultiSig Table of Contents Page 4 M
22. A Channel group B A D or multi I O board DAQ lines Signal GND CH0 CH15 DAQ lines Signal GND CH16 CH31 Internal bus K16 31 B K0 15 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 25 Hardware 2 3 9 2 Block Diagram Multi MUX Slave Board Diagram 15 Block diagram Multi MUX slave board 16 to 1 16 to 1 Optional Slave 1 7 ME MUX32 S Signal conditioning plug on module optional Signal conditioning plug on module optional MUX A MUX B Channel group A Channel group B DAQ lines Signal GND CH0 CH15 DAQ lines Signal GND CH16 CH31 Internal bus K16 31 K0 15 Rev 1 5E Manual ME MultiSig Hardware Page 26 Meilhaus Electronic 2 4 Model Demultiplexer 2 4 1 Demultiplexer Base Board ME DEMUX32 Diagram 16 Demultiplexer base board ME DEMUX32 Channel group A 16 outputs from DAQ board ME DEMUX32 Remaining DAQ board signals DEMUX C DEMUX B DEMUX A R57 R58 Channel group B 16 outputs PE 24V 0V ST1 ST2 ST5 ST6 ST7 ST8 ST9 ME 2x00 3000 ST10 ME 4000 series ST11 ST12 J3 15V 15V Signal GND CH16 CH31 Signal GND CH0 CH15 Soldering bridge area CH0 15 Soldering bridge area CH16 31 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 27 Hardware 2 4 2 Operating Mode Demux This operating mode allows you to divide demultiplex one
23. Address LED Channel group B 16 inputs Signal GND CH0 CH15 Channel group A 16 inputs Signal GND CH0 CH15 1 2 4 Soldering bridge area CH0 15 Soldering bridge area CH16 31 Rev 1 5E Manual ME MultiSig Hardware Page 14 Meilhaus Electronic 2 3 3 Standard System Expansion Standard system expansion means that one master board ME MUX32 M is directly connected to one of the supported PC DAQ boards see page 8 Connect your Meilhaus boards using a 1 1 cable ME AK D78 to ST9 ME 2000 2600 3000 resp ST10 ME 4600 series If you use PC DAQ boards from other manufacturers special cables are required see also table 2 You can connect up to 7 slave boards ME MUX32 S with a 40 pin flat ribbon cable Just connect the master board s ST4 with the first slave board s ST3 etc Each slave board you add will expand your system with 32 channels On the whole you can multiplex 256 channel into one single ended A D channel input range 10 V of your DAQ board The channel number can be selected by a soldering bridge see chapter 2 3 8 and following Every base board is divided into two groups A B each with 16 input channel Diagram 5 ME MUX standard system expansion with 7 slaves As an option each group can be armed with a signal conditioning module for differential measurement of voltage or current for resistance temperature detectors RTDs or with a prototyping breadboard module detail
24. DIN EN 60584 1 They are all refering to a reference temperature of 0 C As a rule the real reference temperature is different from it Therefore the measured thermo electric voltage must be corrected 3 Example Thermocouple type J Fe CuNi measured thermo electric voltage UM 15 308mV reference temperature TR 20 C Version A correct Reference temperature of 20 C equals UR 1 019 mV U0 UM UR 15 308mV 1 019 mV 16 327mV equals a temperature at the measuring junction of 300 C Version B wrong Reference temperature of 15 308mV equals T 282 C T0 T TR 282 C 20 C 302 C 300 C 302 C U0 UM 180 C UR 20 C Thermo electric voltage refering to 0 C measured voltage Thermo electric voltage of reference junction temperature Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 45 Hardware Because of the non linearity of the voltage it would be wrong first to determine the temperature which corresponds to the measu red thermo electric voltage and then to subtract the reference temperature From the thermo electric voltage the voltage corre sponding with the reference junction must be subtracted first 3 2 6 6 3 Limiting Deviation For thermocouples according to DIN EN 60584 three tolerance classes have been specified They are valid for thermocouple wires with a diameter of 0 25 to 3 mm and concern delivery state The classes cann
25. E MultiSig Pinouts Page 68 Meilhaus Electronic B3 78 pin D Sub Female Connector ST11 All lines except of pin 1 are wired from ST9 resp ST10 1 1 to the D Sub female connector ST11 Diagram 44 Pinout 78 pin D Sub female connector ST11 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 n c Signal GND Signal GND Signal GND Signal GND Signal GND Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 69 Technical Questions C Technical Questions C1 Hotline If you should have any technical questions or problems with the board please send a fax to our hotline Fax hotline 49 0 89 89 01 66 28 eMail support meilhaus de Please give a full description of the problems and as much information as possible including operating system information C2 Service address We hope that your board will never need to be repaired If this should become necessary please contact us at the following address Meilhaus Electronic GmbH Service Department Fischerstra e 2 D 82178 Puchheim Germany If you would like t
26. For later calculation the thermo electric voltage UR corre sponding to the reference temperature must be determi ned in dependency of the thermocouple type used TR UN 0 04 50 formula 5 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 47 Hardware Therefore search in the respective electromotive series the temperature value TR and read the corresponding voltage value depending on table in mV or V B Acquisition of the Thermo electric Voltage at the Measuring Junction In combination with ME MUX32 M S Read the voltage value UN from the wanted Mux channel 0 7 of the respective channel group See page 54 In combination with ME SIG32 Read the voltage value UN from A D channel 0 7 resp 16 23 of your data acquisition board See page 59 Divide UN by the relevant gain factor V see table UM UN V C Standardization to Reference Temperature 0 C Because of the standardized electromotive series refer to a reference temperature of 0 C the voltage UR see A must be added to UM U0 UM UR Search in the electromotive series of the thermocouple used the voltage value next to U0 depending on table in mV or V and read the associated temperature value in C Now you have determined the temperature T0 at the ther mocouple wanted Repeat the steps B and C for the rest of the channels Depending on the tolerance class of your t
27. V 20V or 50V ME Current16 The current IM calculates as follows see diagram 21 and 24 IFS should be the current difference I I at full scale in the range 0 20mA UM UFS V 10V UN V IM 20mA 10V UN V Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 33 Hardware Diagram 21 Characteristic curves ME Diff16 left ME Current16 right ME RTD8 For calculating the temperature values please note chapter 2 6 5 from page 37 on ME TE8 For calculating the temperature values please note chapter 2 6 5 from page 37 on UN V UFS UM V 0V 10V 10V 0V UFS UN V IFS 20mA IM mA 0mA 10V 10V 0V IFS 20mA Rev 1 5E Manual ME MultiSig Hardware Page 34 Meilhaus Electronic 2 6 2 Module ME Proto Prototyping breadboard module with an area of soldering holes Use this module to create your own signal conditioning circuitry Can be used on all base boards Power supply comes from the base board Diagram 22 ME Proto 24V 0V Signal GND 0V 24V Signal GND I1 16 O1 16 ME Proto Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 35 Hardware 2 6 3 Module ME Diff16 Plug On module with 16 differential input channels Depending on the model see coding on the module backside the module may have an input range of 10 V 20 V or 50 V T
28. address LED control see chapter Base Board Identification X means Bit not relevant here CH_0 15 x x CH7 0 1 x Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 51 Programming If you want to work with a gain factor of V 1 you can continue with chapter 3 5 Multiplexing 3 2 Gain Setting The gain factor can be set individually for each channel group of the base bords ME MUX32 M and ME MUX32 S You can use the control bits D10 and D9 to select the gain factors V 1 default V 10 or V 100 Take the following 2 steps per channel group 1 Preparation release the reset bit set the gain factor set the write signal to 1 address the base board D3 1 binary coded and select the channel group 2 Take over on the negative edge of the write signal the setting will be taken over The following example shows how to control channel group A on the base board with the address 0 master The gain factor V 10 will be set Diagram 32 Gain factor Continue with measuring with the desired operation mode Single Mux see page 54 or Multi Mux see page 56 11 10 9 8 7 6 5 4 3 2 1 0 0B01hex 1 1 1 0 1 1 x x x x 0 0 0 2 0A01hex D10 D9 V 1 0 0 V 10 0 1 V 100 1 0 1 1 0 1 0 x x x x 0 0 0 Base board 0 7 Channel group A 1 B 0 Rev 1 5E Manual ME MultiSig Programming Page 52 Meilhaus Electronic 3 3 Base Board Identification
29. ate Gain of each group is set to V 1 All address LEDs are switched off Diagram 35 General reset Reset low active 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 Rev 1 5E Manual ME MultiSig Programming Page 54 Meilhaus Electronic 3 5 Multiplexing For multiplexing a master board of type ME MUX32 M and optional slave boards ME MUX32 S are required The digital lines D7 0 are used to control the multiplexers binary coded MUX A and B are connected in parallel and are controlled with D3 0 MUX C is controlled by D7 4 only in operating mode Single Mux 3 5 1 Operating Mode Single Mux Basically the input channel 0 255 selected by the digital lines will be routed to one specific A D channel of the DAQ board The A D channel can be defined by the user see also chap 2 3 8 on page 20 Useful control words 0F00 0FFFhex During a running multiplexer operation no falling edge may occur Diagram 36 Multiplexer control for Single MUX As a rule the multiplexing is done in a program loop Beginning with the master board s channel 0 of group A all input channels of a multiplexer chain max 256 channels are multiplexed into one A D channel of the DAQ board Basically order of operation Loop For i 0 to max channel number 1 FFhex Control word i F00hex Reset and Write must be 1 Write control word to digital port Aqu
30. channels corresponds with the number of groups in your multiplexer chain depending on level of ex pansion up to 16 When using a suitable DAQ board it is also possible to acquire scan the channels Kx of each group by timer control Then the input channels of the multiplexer boards will be switched to the next channel max Kx 15 and a new scan operation can be started see also block diagram on next page Reset must be 1 MUX A B CH_0 15 x x CH3 0 1 11 10 9 8 7 6 5 4 3 2 1 0 x x x x Write x Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 57 Programming Basically order of operation Loop For i 0 to max channel number per group 1 0Fhex Control word i F00hex Reset and Write must be 1 Write control word to digital port Aquire A D channel 0 to max 15 Can also be done control led by timer scan increase i in steps of 1 End of loop Rev 1 5E Manual ME MultiSig Programming Page 58 Meilhaus Electronic 3 6 Demultiplexing This operation mode requires a base board of type ME DEMUX32 First choose the demultiplexer s output channel K0 31 by the digital lines Useful control words are in the range of 00 1Fhex Next output the voltage value wanted by D A channel 0 of your D A resp multi I O board Diagram 40 Controlling the demultiplexer The bits D11 5 are not relevant in this operation mode As a rule demultiplexing is done
31. corresponds with the bit number of the MultiSig control lines Description in brackets is valid in connection with optoisolated boards of the ME 4600 series 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Signal GND AD_1 AD_3 AD_5 AD_7 AD_16 AD_18 AD_20 AD_22 PC_GND DA_1 DIO_A1 DIO_1 DIO_A3 DIO_3 DIO_A5 DIO_5 DIO_A7 DIO_7 DIO_B1 DIO_9 DIO_B3 DIO_11 DIO_B5 DIO_B7 n c AD_0 AD_2 AD_4 AD_6 AD_17 AD_19 AD_21 AD_23 DA_0 DIO_A0 DIO_0 DIO_A2 DIO_2 DIO_A4 DIO_4 DIO_A6 DIO_6 DIO_B0 DIO_8 DIO_B2 DIO_10 DIO_B4 DIO_B6 Signal GND Signal GND AD_9 AD_11 AD_13 AD_15 AD_24 AD_26 AD_28 AD_30 AD_TRIG_A DA_2 EXT_IRQ DA_TRIG_0 DA_TRIG_2 PC_GND DIO_GND OUT_0 GATE_1 CLK_1 OUT_2 PC_GND 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 AD_8 AD_10 AD_12 AD_14 AD_25 AD_27 AD_29 AD_31 AD_TRIG_A DA_3 AD_TRIG_D DA_TRIG_1 DA_TRIG_3 GATE_0 CLK_0 OUT_1 GATE_2 CLK_2 Signal GND Signal GND Rev 1 5E Manual M
32. ction with matching multi I O boards Ask our sales department Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 7 Introduction Additional digital I O boards and special cables are required for full system expansion where up to 8192 channels can be multiplexed For example you are using a digital I O board with 64 outputs e g ME 1000 for every set of 1024 channels an additional plug in board is required Plug On modules for signal conditioning can be added at any time At the moment modules for differential acquisition of voltage or current modules for resistance temperature detectors RTDs and a prototyping breadboard module are available The base board ME SIG32 is especially designed for pure signal conditioning on up to 16 or 32 channels depending on the channel number of the multi I O board This model does not have multiplexing or programmable gain The ME SIG32 can also be used for data acquisition under timer control The same plug on modules are used as for the ME MUX boards at least one plug on module is required for operation Plug On modules are not included with the base board The model ME DEMUX32 is designed to demultiplex one D A channel into max 32 output channels you can build and add your own signal conditioning plug on modules based on the prototyping module Each base board version except the ME SIG32 has its own power section with electrical isolation which ha
33. e found in the specialist literature and from manufacturers like JUMO Under http literatur jumo info you can download the German PDF do cument Elektrische Temperaturmessung FAS146 3 for free Additional you can download a useful conversion program na med JUMOsens under http download jumo info It also ex ports electromotive series in CSV or Microsoft Excel format If you are using base boards of type ME MUX32 M S operation mode Single Mux in combination with a board of the ME 4600 series we recommend the function me4000MultiSigAIDigitToSize for simple calculation of the temperature Basically the following order of operation is valid for calculation of the temperature in combination with module ME TE8 A Acquisition of the Reference Temperature TR For measuring the reference temperature at the terminal a semi conductor temperature sensor with a linearization factor of 10 mV C is used The accuracy within the operating temperature range of the module 0 70 C is 3 5 C In combination with ME MUX32 M S Read the voltage value UN from Mux channel 8 of the respective channel group See page 54 In combination with ME SIG32 Read the voltage value UN from A D channel 9 resp 24 of your data acquisition board See page 59 Calculate the reference temperature TR as follows TR is valid for all channels of a module UN bewegt sich im Bereich 2V 4 8V entspricht 0 70 C
34. e trademarks of Meilhaus Electronic Other company names and product names found in the text of this manual are also trademarks of the companies involved Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 3 Table of Contents Table of Contents 1 Introduction 5 1 1 Package Contents 5 1 2 Features 6 1 3 Supported PC Boards 8 1 4 Model Overview 9 2 Hardware 10 2 1 General Notes 10 2 2 Pullup Pulldown Resistors 10 2 3 Model Multiplexer 12 2 3 1 Multiplexer Master Board ME MUX32 M 12 2 3 2 Multiplexer Slave Board ME MUX32 S 13 2 3 3 Standard System Expansion 14 2 3 4 Full System Expansion 1
35. ed description see chapter Plug On Modules on page 32 A 1 1 bridge module for each group is included see note on page 8 Master Slave 7 16 inputs Slave 1 Slave 2 Slave 3 Slave 4 Slave 5 Slave 6 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs 16 inputs DAQ board A B A B A B A B A B A B A B A B Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 15 Hardware You can select the operation modes Single MUX or Multi MUX see chapter 2 3 8 and following Depending on the operating mode the master board s soldering bridge area has to be configured properly standard setting is Single MUX If you are using slave boards please also read chapter 2 3 5 Jumper Settings 2 3 4 Full System Expansion Full system expansion means that up to 8192 analog inputs can be multiplexed into 32 single ended A D channels of a DAQ board 256 inputs each into one channel For control we recommend digital I O boards of the type ME 1000 providing 64 digital I Os For every set of 1024 channels an additional ME 1000 64 is required For 2048 channels you will need a ME 1001 additionally For 3072 channels you will need an additional ME 1000 64 and for 4096 channels one more ME 1001 etc Moreover you will need special cables see diagram 6 Each MUX chain has one master board and up
36. eilhaus Electronic 2 6 Plug On Modules 32 2 6 1 Calculating the measured values 32 2 6 2 Module ME Proto 34 2 6 3 Module ME Diff16 35 2 6 4 Module ME Current16 36 2 6 5 Module ME RTD8 37 2 6 5 1 2 Wire Connectivity 38 2 6 5 2 3 Wire Connectivity 38 2 6 5 3 4 Wire Connectivity 39 2 6 5 4 Calculating the Temperature 40 2 6 6 Modul ME TE8 42 2 6 6 1 Basics of Thermocouples 43 2 6 6 2 Linearity 44 2 6 6 3 Limiting Deviation 45 2 6 6 4 Calculating the Temperature 46 3 Programming 49 3 1 Control Signals Overview 50 3 2 Gain Sett
37. he absolute value of the voltage difference between the two inputs U and U may not exceed the value of the specified input range The 50 V input models are available with an input resistance of Ri 3 75M or Ri 50M Diagram 23 ME Diff16 The output of the module is always a bipolar voltage value UN in the range of 10V see curve in diagram 21 Signal GND is not connected The lines U and U of each measurement channel are connected to the corresponding clamps on the terminals ST1 and STM1 see diagram 23 Input channels you will not use should be short circuited 15V 15V 24V 0V Signal GND Signal GND n c STM1 15V 15V ST9 ME 2x00 3000 ST10 ME 4000 series ST11 ST1 0 ME Diff16 0 15 1 2 UM U U Rev 1 5E Manual ME MultiSig Hardware Page 36 Meilhaus Electronic 2 6 4 Module ME Current16 Plug On module for measurement of current on 16 differential channels The input range is 0 20 mA The absolute value of the current difference between the two inputs I and I may not exceed the range of 0 20 mA Diagram 24 ME Current16 The output of the module is always a bipolar voltage value UN in the range of 10V see curve in diagram 21 Signal GND is not connected Connecting signal GND is not required The lines of each measurement channel are connected to the corresponding clamps on the terminals ST1 and STM1 see diagram 2
38. hermocouple the limi ting deviations according to DIN EN 60584 named in table 6 are valid B R S T K N E J V 270 270270270 V 140 845070423 V 107 526881720 Rev 1 5E Manual ME MultiSig Hardware Page 48 Meilhaus Electronic Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 49 Programming 3 Programming The PC DAQ board s digital ports are used to control the de multiplexing and the gain settings Depending on the base board up to 12 digital output lines are necessary for ME SIG32 no specific programming is required In combination with Meilhaus boards of type ME 2000 2600 3000 their digital I O lines DIO_0 11 of port A control the base boards Please use the digital I O functions from the function library of your DAQ board for writing the control words When using opto isolated versions of the ME 4600 series please read the note on page 8 After power up the digital ports of most of the boards are configured as input ports i e in high impedance state To force the digital lines 0 11 into a defined state they are equipped with plugable pulldown default resp pullup resistors see also chap 2 2 on page 10 This will set all base boards into their basic state see chap 3 4 Note If you are using base boards of type ME MUX32 M S operation mode Single Mux or of type ME DEMUX32 in com bination with a board of the ME 4600 series you can use the me4000MultiSig functions for fast p
39. in a program loop Beginning with channel 0 of the demultiplexer board the voltage value to be output will be demultiplexed from the D A resp multi I O board to the outputs of the ME DEMUX32 Basically order of operation see also block diagram on next page Loop For i 0 to max channel number 1 1Fhex Control word i Write control word to digital port Output voltage value to D A channel 0 increase i in steps of 1 End of loop x x x CH4 0 x DEMUX A B DEMUX C x x x 11 10 9 8 7 6 5 4 3 2 1 0 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 59 Programming Block Diagram Demux Diagram 41 Block diagram Demux 3 7 Signal Conditioning When using the base board ME SIG32 no digital control lines are required Programming will be limited to the analog aquisition with your PC DAQ board The max sampling rate depends on the plug on modules used see specifications on page 61ff customer specific plug on module optional 1 to 16 1 to 16 customer specific plug on module optional 1 to 2 78 pin D sub maler D A channel 0 D A or multi I O board CH0 15 Demultiplexer ME DEMUX32 DEMUX C DEMUX A DEMUX B Channel group A Channel group B Analog output Signal GND CH16 CH31 Signal GND CH0 CH15 Analog output CH16 31 Rev 1 5E Manual ME MultiSig Programming Page 60 Meilhaus Electronic Manual ME MultiSig
40. ing 51 3 3 Base Board Identification 52 3 4 General Reset 53 3 5 Multiplexing 54 3 5 1 Operating Mode Single Mux 54 3 5 2 Operating Mode Multi Mux 56 3 6 Demultiplexing 58 3 7 Signal Conditioning 59 Appendix 61 A Specifications 61 B Pinouts 66 B1 78 pin D Sub Male Connector ST9 66 B2 78 pin D Sub Male Connector ST10 67 B3 78 pin D Sub Female Connector ST11 68 C Technical Questions 69 C1 Hotline 69 C2 Service address
41. ion compensation If the reference temperature TR at the terminal is known you can calculate the temperature T0 at the measuring junction direct ly by the thermo electric voltage measured The thermo electric voltage generated by the reference temperature must be added to the measured voltage and equals the thermo electric voltage refering to 0 C V U U T0 TR UM Rev 1 5E Manual ME MultiSig Hardware Page 44 Meilhaus Electronic Example The temperature of the measuring junction should be 200 C the temperature at the terminal 20 C reference tempera ture and the measured thermo electric voltage 9mV This corre sponds with a temperature difference of 180 C Because of the temperature is referenced to 0 C as a rule the value must be cor rected by 20 C up 3 It is valid Note The voltage caused by the thermo electric effect is very low and is only a few microvolts per Kelvin Generally thermo couples will not be used to measure temperatures in the range ot 30 50 C because of the difference to the reference tempera ture is to small in order to get an reliable measurement signal 3 2 6 6 2 Linearity The voltage generated by a thermocouple is not linear refering to the temperature Because of that the user must linearize the values by software In practice electromotive series linearization tables are used which were calculated based on second to fourth order polynomials and are standardized in
42. ional Signal conditioning plug on module optional MUX A MUX B Channel group A Channel group B Signal conditioning plug on module optional Signal conditioning plug on module optional MUX A MUX B Channel group A Channel group B A D or multi I O board DAQ lines Signal GND CH0 CH15 DAQ lines Signal GND CH16 CH31 DAQ lines Signal GND CH0 CH15 DAQ lines Signal GND CH16 CH31 Rev 1 5E Manual ME MultiSig Programming Page 56 Meilhaus Electronic 3 5 2 Operating Mode Multi Mux The assignment of the 16 input channels of a group max 16 groups in one multiplexer chain to the A D channels of the DAQ board is fixed see also chap 2 3 9 on page 23 I e the inputs of group A on the master board will be acquired by channel 0 of the DAQ board Depending on the level of expansion this is continued up to group B of slave board 7 whose inputs will be acquired by A D channel 15 Note that all groups within a multiplexer chain are switching synchron to the channel number Kx selected by the digital I O lines Useful control words 0F00 0F0Fhex During a running multiplexer operation no falling edge may occur Diagram 39 Multiplexer setting for Multi MUX operation As a rule the multiplexing is done in a program loop Beginning with channel 0 Kx 0 the 16 input channels are routed in groups to the assigned A D channel of the DAQ board see above The number of necessary A D
43. ire one value on A D channel 0 of the DAQ board if ma ster is configured for channel 0 increase i in steps of 1 End of loop MUX A B MUX C CH_0 15 x x CH7 0 1 11 10 9 8 7 6 5 4 3 2 1 0 Reset must be 1 Write x Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 55 Programming Block Diagram Single Mux Diagram 37 Block diagram Single Mux Block Diagram Multi Mux Diagram 38 Block digram Multi Mux 16 to 1 16 to 1 Signal conditioning plug on module optional 16 to 1 16 to 1 Signal conditioning plug on modul optional 78 pin D sub male DAQ board A D channel single ended preselected Channel 0 16 to 1 Internal bus Master ME MUX32 M Optional Slave 1 7 ME MUX32 S MUX C MUX A MUX B Channel group A Channel group B Signal conditioning plug on module optional Signal conditioning plug on module optional MUX A MUX B Channel group A Channel group B A D or multi I O board DAQ lines Signal GND CH0 CH15 DAQ lines Signal GND CH16 CH31 DAQ lines Signal GND CH0 CH15 DAQ lines Signal GND CH16 CH31 16 to 1 16 to 1 16 to 1 16 to 1 78 pin D sub male Each channel group is assigned to an analog input channel single ended of the DAQ board channel 0 15 Internal bus Master ME MUX32 M Optional Slave 1 7 ME MUX32 S Signal conditioning plug on module opt
44. n 30 DEMUX D E e g ME 2600 3000 e g ME 4600 series Rev 1 5E Manual ME MultiSig Hardware Page 28 Meilhaus Electronic 2 4 3 Block Diagram Demux Diagram 18 Block diagram Demux customer specific plug on module optional 1 to 16 1 to 16 customer specific plug on module optional 1 to 2 78 pin D sub maler D A channel 0 D A or multi I O board CH0 15 Demultiplexer ME DEMUX32 DEMUX C DEMUX A DEMUX B Channel group A Channel group B Analog output Signal GND CH16 CH31 Signal GND CH0 CH15 Analog output CH16 31 Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 29 Hardware 2 5 Model Signal Conditioning 2 5 1 Signal Conditioning Base Board ME SIG32 Diagram 19 Signal conditioning base board ME SIG32 ME SIG32 R57 R58 PE 24V 0V DAQ board Remainings DAQ board signals ST1 ST2 ST5 ST6 ST7 ST8 ST9 ME 2x00 3000 ST10 ME 4000 series ST12 Channel group B 16 inputs Signal GND CH16 CH31 Channel group A 16 inputs Signal GND CH0 CH15 ST11 Soldering bridge area CH0 15 Soldering bridge area CH16 31 Rev 1 5E Manual ME MultiSig Hardware Page 30 Meilhaus Electronic 2 5 2 Operating Mode Signal Conditioning For pure signal conditioning on up to 16 or 32 channels depending on the multi I O board channel number the base board ME SIG32 is used This b
45. o send us a board for repair please do not forget to add a full description of the problem Rev 1 5E Manual ME MultiSig Bibliography Page 70 Meilhaus Electronic D Bibliography in German language 1 Texts and formulas in chapter 2 6 5 faithfully translated according to JUMO Typenblatt 90 6000 page 1 2 D Weber Elektrische Temperaturmessung Mit Thermoele menten und Widerstandsthermometern 9th edition Februa ry 2001 3 Texts and tables in chapter 2 6 5 faithfully translated accor ding to Matthias Nau Elektrische Temperaturmessung Mit Thermo elementen und Widerstandsthermometern JUMO book number FAS 146 February 2003 ISBN 3 935742 06 1 4 TC Me und Regeltechnik GmbH Handbuch zur Tempera turmessung mit Thermoelementen und Widerstandsthermo metern 2004 5 Gerd Scheller Messunsicherheit einer Temperaturmesskette mit Beispielrechnungen JUMO book number FAS 625 April 2003 ISBN 3 935742 12 6 See also Literature from JUMO http literatur jumo info Software from JUMO http download jumo info Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 71 Index E Index B Base board identification 52 Bibliography 70 D Demultiplexer Base Board 26 F Features 6 Full System Expansion 15 G Gain Setting 51 General Notes 10 H Hardware 10 I Introduction 5 J Jumper Settings 17 M Master Board 12 Multiplexer 12 O Operating Mode De Mux 27 Mul
46. oard does not have a multiplexing and gain section i e no digital control lines are required The base board is directly connected to one of the supported A D or multi I O boards see page 8 Connect your Meilhaus board using a 1 1 cable ME AK D78 to ST9 ME 2600 3000 resp ST10 ME 4600 series If you use PC DAQ boards from other manufacturers special cables are required see also table 2 Depending on the multi I O board features data acquisition under timer control may be possible Signal conditioning plug on modules are available for differential acquisition of voltage or current for resistance temperature detectors RTDs and for prototyping a detailed description of the modules can be found in chapter Plug On Modules on page 32 The plug on modules are not included with the base board for 16 channels at least one module is required Custom specific signal conditioning modules based on the prototyping breadboard module can also be plugged on at any time No jumpers or soldering bridges have to be set on the ME SIG32 Connect all inputs you will not use in your DAQ system to signal GND i e inputs of the base boards as well as inputs of the signal conditioning modules Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 31 Hardware 2 5 3 Block Diagram Signal Conditioning Diagram 20 Block Diagram Signal Conditioning Signal conditioning plug on module CH0 15 Signal conditioning
47. om the DAQ PC board The gain V 1 V 10 V 100 can be programmed per group using the digital control lines of your DAQ board After power up the gain is set to V 1 When setting the gain factor please note that the PC DAQ board s max input range must not be exceeded because of this always use V 1 in combination with signal conditioning modules For further information on programming the gain factors see chapter 3 2 on page 51 2 3 7 Power Supply Each base board has to be connected to a suitable DC power supply 18 36 V typ 24 V via the connector ST12 You can calculate the power consumption of your system depending on the number of base boards and plug on modules see appendix A Specifications We recommend a star connection of all base boards to safety earth PE of your rack cabinet or PC Diagram 9 Power supply ST12 24V PE ST12 ST12 Rev 1 5E Manual ME MultiSig Hardware Page 20 Meilhaus Electronic 2 3 8 Operating Mode Single MUX The operating mode Single MUX allows you to multiplex up to 256 channels into one A D channel of your PC DAQ board For this mode you have to set the soldering bridge A on the master board for the one DAQ board channel you would like to use See also diagram 11 and 12 Master board Group A A D channel 0 15 Master board Group B A D channel 16 31 Diagram 10 Soldering bridges Single MUX Default
48. onditioning Screw terminal connectors for analog inputs and power supply ME Power CD with user manual in PDF format for Acrobat Reader optional printed manual 78 pin D sub connector for ST11 not for ME MUX32 S Rev 1 5E Manual ME MultiSig Introduction Page 6 Meilhaus Electronic 1 2 Features Diagram 1 Analog multiplexing system The analog multiplexing and demultiplexing system expands your multifunctional PC I O DAQ board converting it into a versatile multi channel DAQ system The following models resp expansion levels are available Analog multiplexing up to 256 resp 8192 channels with or without signalconditioning also timer controlled Analog demultiplexing up to 32 channels Pure signal conditioning also timer controlled The system consists of at least one master base board with 32 channels You can expand the system on max 256 channels using up to 7 slave base boards The multiplexer is controlled by the multi I O PC board s digital I O lines Each base board has two groups of 16 measurement channels Each channel group has variable gain which can be configured via software for the gain factors 1 10 and 100 The analog input channels can either be multiplexed into one A D channel Single MUX mode or can be multiplexed per group of 16 channels into the A D channels 0 15 Multi MUX operation in conne
49. ot consider aging effects because it greatly de pends on the environmental conditions According to the toleran ce class the following tolerance deviations are valid for each the greater value is valid 3 TC Type Class Limiting Deviation J Fe CuNi CLass 1 CLass 2 CLass 3 40 750 C 0 004 t 40 750 C 0 0075 t or 1 5 C or 2 5 C T Cu CuNi CLass 1 CLass 2 CLass 3 0 350 C 0 004 t 40 350 C 0 0075 t 200 40 C 0 015 t or 0 5 C or 1 0 C or 1 0 C K NiCr Ni und N NiCrSi NiSi CLass 1 CLass 2 CLass 3 40 1000 C 0 004 t 40 1200 C 0 0075 t 200 40 C 0 015 t or 1 5 C or 2 5 C or 2 5 C E NiCr CuNi CLass 1 CLass 2 CLass 3 40 900 C 0 004 t 40 900 C 0 0075 t 200 40 C 0 015 t or 1 5 C or 2 5 C or 2 5 C S Pt10Rh Pt und R Pt13Rh Pt CLass 1 CLass 2 CLass 3 0 1600 C 1 0 003 t 1100 C 0 1600 C 0 0025 t or 1 0 C or 1 5 C B Pt30Rh Pt6Rh CLass 1 CLass 2 CLass 3 600 1700 C 0 0025 t 600 1700 C 0 005 t or 1 5 C or 4 0 C Table 6 Limiting deviation according to SDIN EN 60584 Rev 1 5E Manual ME MultiSig Hardware Page 46 Meilhaus Electronic 2 6 6 4 Calculating the Temperature Notes Electromotive series linearization tables can b
50. rogramming and easy cal culation of the values The functions are included with the function library of the ME 4000 driver Rev 1 5E Manual ME MultiSig Programming Page 50 Meilhaus Electronic 3 1 Control Signals Overview Diagram 31 Control signals Signal Description CHx ME MUX32 M ME MUX32 S and ME DEMUX32 Addressing the channels for de multiplexer operation depending on model and operation mode 0 255 ADRx ME MUX32 M and ME MUX32 S Addressing the master 0 resp the slave boards 1 7 for setting the gain factor and switching the address LED G ME MUX32 M and ME MUX32 S Selection of channel group A B for gain setting W ME MUX32 M and ME MUX32 S Data take over on the falling edge of the write signal Attention During a running multiplexer operation no falling edge may occur V ME MUX32 M and ME MUX32 S Select gain factor and for switching the address LED R ME MUX32 M and ME MUX32 S Reset signal sets all master and slave boards to gain V 1 and switches off the address LED Table 7 Control signals Reset must be 1 Write no falling edge may occur Reset low active Gain factor Write take over on falling edge Channel group A 1 B 0 11 10 9 8 7 6 5 4 3 2 1 0 V V W x x x x R G ADR2 0 Base board 0 7 D10 D9 V 1 0 0 V 10 0 1 V 100 1 0 Configuration mode Operation mode MUX C MUX A B Different functionality for
51. s to be externally supplied with 24 V DC The system can be mounted to DIN rails in connection with matching multi I O boards Ask our sales department Rev 1 5E Manual ME MultiSig Introduction Page 8 Meilhaus Electronic 1 3 Supported PC Boards The following table shows the A D D A and multi I O boards supported by the analog de multiplexing system Note depending on board type and channel number not all base boards are supported Supported boards from other suppliers Board type ST9 10 Remark ME 2000 ST9 16 A D channels no demultiplexing ME 2600 3000 ST9 16 A D channels demultiplexing supported ME 4610 ST10 16 A D channels no demultiplexing ME 4650 ST10 16 A D channels no demultiplexing ME 4660 i ST10 16 A D channels demultiplexing supported notice the note for opto isolated versions ME 4670 i ST10 32 A D channels demultiplexing supported notice the note for opto isolated versions ME 4680 i is ST10 32 A D channels demultiplexing supported multiplexing controlled by timer notice the note for opto isolated versions This note concerns the use of opto isolated versions of the ME 4600 series i versions in combination with the base boards ME MUX32 M and ME MUX32 S Because of the opto isolation port B is fixed as an input port This results in the following limitations the gain factor is prese
52. t data is neither affected by the line resistance nor by its changes through temperature Further line compensation is not required The wires supply the temperature sensor with the measurement current IM The voltage at the sensor is measured at U and U 2 Diagram 28 4 wire connectivity GND 4 wire connectivity U IOut U UM IM Rev 1 5E Manual ME MultiSig Hardware Page 40 Meilhaus Electronic 2 6 5 4 Calculating the Temperature Note If you are using base boards of type ME MUX32 M S operation mode Single Mux in combination with a board of the ME 4600 series we recommend the function me4000MultiSig AIDigitToSize for simple calculation of the temperature Resistance temperature detectors RTDs change their resistance depending on the temperature For the acquisition of temperatures the voltage drop created by a constant measurement current is measured A small measurement current should be used to prevent the sensor from getting hot The ME RTD8 module s typical constant measurement current IM 500 A We recommend to measure the actual constant current of each channel with a high accuracy ampere meter accuracy better than 1 A at the beginning see diagram 25 example for channel 0 because of unavoidable component tolerances Note down the measurement value of each channel and use it to calculate the resistance of the temperature sensor RM Calculated resistance of the temperature sensor
53. t to V 1 V 10 V 100 not adjustable the reset bit can not be used the address LED can not be controlled When using a i version you can avoid these limitations in combination with an adapter board of type ME AA4 3 i Table 1 Supported ME boards Board type ST9 10 Remark Eagle PC30F G ST9 16 A D channels no demultiplexing special cable required Adlink PCI 9111 9112 ST9 16 A D channels demultiplexing possible set of adaptors and 2 nd slot required Measurement Computing CIO DAS 08 ST9 16 A D channels no demultiplexing set of adaptors and 2 nd slot required Measurement Computing CIO DAS 1602 16 ST9 16 A D channels demultiplexing possible set of adaptors and 2 nd slot required Table 2 Supported boards from other suppliers Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 9 Introduction 1 4 Model Overview National Instruments PCI 6025E ST9 16 A D channels demultiplexing possible special cable required UEI PD2 MF xxx ST9 16 A D channels demultiplexing possible set of adaptors and 2 nd slot required Model Description ME MUX32 M Multiplexer base board master with 32 inputs with programmable gain ME MUX32 S Multiplexer base board slave with 32 inputs with programmable gain ME DEMUX32 Demultiplexer base board with 32 outputs without gain ME SIG32
54. ti Mux 23 Signal Conditioning 30 Single Mux 20 P Pinouts 66 Plug On Modules 32 ME Current16 36 ME Diff16 35 ME Proto 34 ME RTD8 37 ME TE8 42 Power Supply 19 Programming 49 Demultiplexing 58 Multiplexing 54 Multi Mux 56 Single Mux 54 Reset Bit 53 Signal Conditioning 59 PTC 37 Pullup Pulldown Resistors 10 R RTDs 37 2 Wire Connectivity 38 3 Wire Connectivity 38 4 Wire Connectivity 39 Temperature Calculation 40 S Service and Support 69 Signal Amplifier 19 Signal Conditioning Base Board 29 Slave Board 13 Specifications 61 Standard System Expansion 14 Supported PC Boards 8 T Technical Questions 69 Thermocouples Basics 43 Limiting Deviation 45 Linearity 44 Temperature Calculation 46 Thermocouple Types 42
55. to 7 slave boards The structure of a single chain is the same as for standard system expansion in Single MUX mode Rev 1 5E Manual ME MultiSig Hardware Page 16 Meilhaus Electronic Multiplexer Full System Expansion Diagram 6 Multiplexer full system expansion One special adaptor per ME MUX chain ME AS D78M BNC 78 pin D sub male to BNC ME MUX chain 1 1x master and 7x slave 8 x 32 256 analog inputs ME MUX chain 2 1x master and 7x slave 8 x 32 256 analog inputs ME MUX chain 16 max 4096 channels 4 x 12 4 x 12 Digital outputs 4 x 12 4 x 12 Digital outputs Standard BNC cable for analog signal ME AB BNC16 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 DAQ board Customer specific special cable for digital control signals Digital I O board ME 1000 ME 1001 ME 1000 128 Digital I O board ME 1000 ME 1001 ME 1000 128 ME MUX chain 32 max 8192 channels Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 17 Hardware 2 3 5 Jumper Settings An internal bus system connects the master board with up to 7 slave boards using a 40 wire flat ribbon cable A unique base address 1 7 has to be selected with the jumper ADR to address the individual slave boards The jumpers J1 and J2 patch the analog channels of the slave boards to the internal bus Always set the jumpers of the slave boards as shown in diagram 7 and 8 Diagram 7 Jumper settings master
56. ut GND 0 7 1 2 3 4 5 6 IM see chapter Calculation of Temperature Rev 1 5E Manual ME MultiSig Hardware Page 38 Meilhaus Electronic 2 6 5 1 2 Wire Connectivity The sensor is connected to the module ME RTD8 using 2 wires see diagram 26 Like every electric conductor these wires have a resistance which is in series with the temperature sensor This means that the resistance values are added which will be misinterpreted as a higher temperature A compensation of this error requires a lot of sophisticated adjustment To describe the adjustment methods would go beyond the scope of this manual 2 Diagram 26 2 wire connectivity 2 6 5 2 3 Wire Connectivity 3 wire connectivity see diagram 27 is used to minimize the influences of the wires resistance and its relation to temperature An additional third wire leads to a sensor contact This creates two measurement circuits One of them is used as a reference UR Using 3 wire connectivity compensates the wires resistance as well as its relation to temperature A further line compensation is not required 2 Diagram 27 3 wire connectivity GND 2 wire connectivity U IOut U IM UM GND 3 wire connectivity U IOut U UM UR IM Manual ME MultiSig Rev 1 5E Meilhaus Electronic Page 39 Hardware 2 6 5 3 4 Wire Connectivity 4 wire connectivity is the best way to connect RTDs to the ME RTD8 module Measuremen

ME-MultiSig 1.5E - SisNova Engineering GmbH

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