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ESD VME-DAC1612 Manual

16 analog outputs
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VME-DAC1612
16 Analog Outputs
Manual
to Product V.1706.08, V.1706.16
VME-DAC1612
Manual • Doc. No.: V.1706.21 / Rev. 1.2
Page 1 of 50
esd electronic system design gmbh
Vahrenwalder Str. 207 • 30165 Hannover • Germany
http://www.esd.eu
Phone: +49 (0) 511 3 72 98-0 • Fax: +49 (0) 511 3 72 98-68

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  • Page 1 VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 1 of 50 esd electronic system design gmbh Vahrenwalder Str. 207 • 30165 Hannover • Germany http://www.esd.eu Phone: +49 (0) 511 3 72 98-0 • Fax: +49 (0) 511 3 72 98-68...
  • Page 2 The information in this document has been carefully checked and is believed to be entirely reliable. esd makes no warranty of any kind with regard to the material in this document, and assumes no responsibility for any errors that may appear in this document. In particular descriptions and technical data specified in this document may not be constituted to be guaranteed product features in any legal sense.
  • Page 3 Date of print: 2016-05-23 Document type DOC0800 number: Hardware version: VME-DAC1612 Rev. 1.2 Document History The changes in the document listed below affect changes in the hardware as well as changes in the description of the facts, only. Rev. Chapter...
  • Page 4 This NOTICE statement contains the general mandatory sign and gives information that must be heeded and complied with for a safe use. INFORMATION INFORMATION Notes to point out something important or useful. Page 4 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 5: Safety Instructions

    EMI protection requirements are necessary. Intended Use The intended use of the VME-DAC1612 is the operation as VMEbus board for the generation of up to 16 analog signals for process control purposes. The guarantee given by esd does not cover damages which result from improper use, usage not in accordance with regulations or disregard of safety instructions and warnings.
  • Page 6 Service Note The VME-DAC1612 does not contain any parts that require maintenance by the user. The VME- DAC1612 does not require any manual configuration of the hardware but the configuration of the jumpers and the coding switches as described in this manual. Unauthorized intervention in the device voids warranty claims.

  • Page 7: Table Of Contents

    P2.......................46 9.7.2 Analog Outputs at P3......................48 9.7.3 Supplying the Analog Units via Screw Terminals (P4, P5) ..........49 9.7.4 Analog Outputs via Screw Terminals (P11-P18) ..............49 Order Information..........................50 VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 7 of 50...

  • Page 8: Overview

    The power supply of the analog side (±15 V, +5 V) are generated by DC/DC-converters from the +5 VMEbus power supply. The VME-DAC1612 is compatible to VMEbus Standard Rev. C. With a height of 4 HP it uses one slot on the VMEbus.

  • Page 9: Front Panel

    Post connector P800: - Analog outputs 1...8 Figure 2: PCB top view NOTICE Read chapter “Hardware Installation” on page 34, before you start with the installation of the hardware! VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 9 of 50...

  • Page 10: Technical Data

    VME access time < 150 ns (up to DTACK) VMEbus installation 6 U high / 4 HP wide front panel with lever holds Table 2: General module data Page 10 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 11: Technical Data Of Analog Units

    Settling time of D/A- max. 6 μs / channel converter (at voltage swing 20 V, final value achieved to 0.01%) Table 3: Technical data of analog units VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 11 of 50...

  • Page 12: Address Assignment

    In addition to 'STANDARD' accesses (A24) there is the possibility to use the VME-addressing 'SHORT I/O' (jumper J120). In this addressing the address lines A16 to A23 are ignored and the basis address of the VME-DAC1612 board is set in the 'SHORT I/O' address range (64 KByte) of the VME-system.

  • Page 13: Jumpers And Coding Switches

    Jumpers and Coding Switches 4. Jumpers and Coding Switches 4.1 PCB-View Figure 3: Position of coding switches and jumpers VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 13 of 50...

  • Page 14: Default Setting Of Jumpers

    VMEbus connectors on the right. Default setting of the jumpers: Jumper Function Default setting at board delivery SW120... basis address of board VME-DAC1612: 0xE20000 SW123 short/standard supervisory and non- J120 address modifier decoding privileged accesses permitted depending on model and the output voltage...

  • Page 15: Setting Basis Address And Address Modifier Decoding

    VMEbus connector P1 A19...A16 SW121 A15...A12 SW122 in front panel (above) A11...A8 SW123 in front panel (below) Table 6: Setting of basis address VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 15 of 50...

  • Page 16: Address Modifier (J120)

    I/O access and short non-privileged I/O access permitted The AM-configurations available to the VME-DAC1612 are listed in the table below. In addition to the AM-combinations listed, the bit AM2 can be ignored at decoding by setting jumper 'AM2 don't care'.
  • Page 17 0x29 short supervisory 0x2D access short supervisory 0x2D access short non-privileged 0x29 access Table 8: Recommended useful AM-combinations Jumper open Jumper closed VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 17 of 50...

  • Page 18: Configuration Of Analog Units

    D/A-converters to 0 V in bipolar operation after a RESET. Jumpers J400 to J731 switch the respective D/A-converter outputs to unipolar or bipolar operation and the desired voltage swing. Page 18 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 19: Mode Register (J130)

    The mode register is a 'read-only' register to configure the board via software. It is read as WORD under the local address '0x00'. The LSB (D0-D7) is always read as 0x01. It is used to identify the board as VME-DAC1612 in the VMEbus system. The MSB contains information about the number of D/A-converter channels equipped and the polarity of the output voltage.
  • Page 20 Jumpers and Coding Switches D8: DAC-addresses The D/A-converters of the VME-DAC1612 are usually selected via D12-D15/A1-A4... the four least significant address bits (A1...A4). If the jumper J130/pin 1-2 has not been set, the D/A-converters are not selected via the addresses, but the most significant data bits (D11...D15).
  • Page 21 The bits encode the channel number as follows: Bit 3 Bit 2 Bit 1 Bit 0 Number of equipped (D15) (D14) (D13) (D12) D/A-converter channels Table 14: Encoding the number of equipped D/A-converter channels VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 21 of 50...

  • Page 22: Negation Of Data Bit D11 (J300)

    0 V after a RESET, if bit D11 has got the level required for the operating mode! J300 unipolar operation (D11 not inverted) bipolar operation (D11 inverted) Example: D11 inverted for bipolar operation of D/A-converter outputs jumper open jumper closed Page 22 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 23: Selecting The Output Voltage Range (J400-J731)

    Jumper settings for output voltage ranges Output voltage range Output voltage range 0...+10V ±5V Default setting at Output voltage range delivery ->> ±10V jumper open jumper closed VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 23 of 50...
  • Page 24 NOTICE For the assignment of jumpers to the sixteen channels, please refer to the PCB view on page 13. There the channel circuits are designated by numbers. Page 24 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 25: Analog Outputs

    Analog Outputs 5. Analog Outputs 5.1 Output Circuit Figure 4: Output circuit of the VME-DAC1612 (example: channel 1) VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 25 of 50...

  • Page 26: Operating Modes Of The D/A-Converters

    5.2 Operating Modes of the D/A-Converters 5.2.1 Data Transfer Each of the 16 D/A-converters of the VME-DAC1612 has got its own access address. Writing the data at this address sets the D/A-converters and starts the conversion. The data has to be...
  • Page 27 A1...A4 are not evaluated. The write access can be done with any address setting, that lies in the local address range of the VME-DAC1612. INFORMATION At the hardware address decoding the data bits take over the function of the address bits (A1 <=>...

  • Page 28: Unipolar Operation 0

    (+ 5.0000 V) 011111111111 0x7FF + ½ maximum value-1 LSB (+ 4.9976 V) 000000000000 0x000 null ( 0.0000 V) Table 17: Data format for output voltages of 0...10 V Page 28 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 29: Bipolar Operation ±5

    ( 0.0000 V) 111111111111 0xFFF - 1 LSB (- 0.0024 V) 100000000000 0x800 - maximum value (- 5.000 V) Table 18: Data format for output voltages of ±5 V VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 29 of 50...

  • Page 30: Bipolar Operation ±10

    ( 0.0000 V) 111111111111 0xFFF - 1 LSB (- 0.0049 V) 100000000000 0x800 - maximum value (- 10.0000 V) Table 19: Data format for output voltages of ±10 V Page 30 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 31: Adjusting The D/A-Converters

    P612 P620 P621 P622 P630 P631 P632 P700 P701 P702 P710 P711 P712 P720 P721 P722 P730 P731 P732 Table 20: Assignment of adjusting potentiometers to channels VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 31 of 50...

  • Page 32: Offset Setting

    D/A-converter and the following operation amplifier is set. In unipolar operation the value 0x0000 is applied to the D/A-converter which is to generate an output voltage of 0.0 V at the output of the according channel of the VME-DAC1612. ▸...

  • Page 33: Gain

    If the board is then changed to unipolar operation (0...10 V) via jumpers again and is then not adjusted via the gain potentiometer, you have to expect a further deviation of about ½ LSB (regarding to the maximum value) in unipolar operation. VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 33 of 50...

  • Page 34: Hardware Installation

    If necessary, configure the coding switches as described in chapter “Jumpers and Coding Switches” from page 13. Insert the VME-DAC1612 board into the selected VME slot. Carefully push the board until it snaps into place. Close the system's case again.

  • Page 35: Software

    An output voltage at the D/A-converter channel can be generated by writing the data word word- by-word (depending on operating mode) at the corresponding address of the DAC channel. The following page shows an example program for accesses to the VME-DAC1612 board in realtime-multitasking-standard language PEARL.

  • Page 36: Pearl-Example Program To Generate Lissajous-Figures On An Oscilloscope

    FOR i FROM -speed TO speed REPEAT; sinus=ROUND((SIN(i*r)+1.0)*b); cosin=ROUND((COS(i*r)+1.0)*b); SEND sinus TO dac0; SEND cosin TO dac1; END; END; END; /* of Task "lissajous" */ MODEND; Page 36 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 37: Connector Assignment

    ┐ IACKOUT* ┘ Spring contact strip according to DIN41612 design C96/a+b+c per pin : 1.0 A ┐ ┘... signals on board bridged - ... signal not connected VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 37 of 50...

  • Page 38: I/O-Connector P2 And Transition Module

    I/O-connector: spring contact strip according to DIN41612 design C64/a+c per pin : 1.0 A See the following page for the description of signals. Page 38 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...
  • Page 39 VME- DAC1612 board and not on the adapter. Therefore the reference potential of the supply voltages of the VME-DAC1612 and the reference potential of the supply voltages of the adapter board (GND ) are connected via P2.

  • Page 40: Post Connectors P800 And P801

    DAC6-GND DAC7-GND DAC7-OUT DAC7-GND DAC8-GND DAC8-OUT DAC8-GND Shield Shield 34-pin post connector in front panel with locking. Please refer to previous page for a description of signals. Page 40 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 41: Dac812-Adapter (Dac812-20Ma)

    Each of the voltage/current converters has got three jumpers, by which the three different operating modes can be selected: Voltage output (the output voltage of the VME-DAC1612 is directly fed to the terminals of the adapter. All voltage ranges of the VME-DAC1612 are permissible) Current output 0...20 mA...

  • Page 42: Default Settings Of Jumpers

    BR42 BR41 and BR43 BR52 BR51 and BR53 BR62 BR61 and BR63 BR72 BR71 and BR73 BR82 BR81 and BR83 Table 22: Assignment of jumpers to channels Page 42 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...
  • Page 43 DAC812-adapter'. Voltage outputs BR11 If the output voltage of the VME-DAC1612 is to fed 1 2 3 through for a channel, a jumper has to bridge pins 2-3 in jumper field Brx2. Jumper fields Brx1 and Brx2 are 100k insignificant in this case.

  • Page 44: Conversion Of Voltages To Currents

    'Adjusting the D/A-Converters' on page 31. Instead of the voltage values cited there, you set the equivalent current values. If you only feed through the output voltage of the VME-DAC1612, you do not have to adjust offset and gain.

  • Page 45: Assignment Of Connectors Of The Dac812-Adapter

    132 mm to 81.5 mm. Please refer to figure 5 'Position of jumpers of the DAC812- adapter' on page 41 for the position of the line. VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 45 of 50...

  • Page 46: Transition Connector P2

    +15 V analog analog analog analog I/O-connector: Spring contact strip in accordance with DIN41612 design C64/a+c per pin: 1.0 A For signal description turn to the following page. Page 46 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...
  • Page 47 - ... these connector pins are not connected on board DACx-IN ... analog input signal of the DAC812-adapter board (= output of VME-DAC1612 with x = 1...8) Signal-GND ... reference potential of analog inputs of the adapter board +5 V...

  • Page 48: Analog Outputs At P3

    (used as shield) INFORMATION The potentials 'Signal-GND' and 'GND ' are connected to each analog other on the VME-DAC1612-board. On the adapter board these signals are not connected. Page 48 of 50 Manual • Doc. No.: V.1706.21 / Rev. 1.2 VME-DAC1612...

  • Page 49: Supplying The Analog Units Via Screw Terminals (P4, P5)

    Load GND of the output signal Output signal: Voltage output of the VME-DAC1612 or Current output 0...20 mA or Current output 4...20 mA VME-DAC1612 Manual • Doc. No.: V.1706.21 / Rev. 1.2 Page 49 of 50...

  • Page 50: Order Information

    Table 24: Order information PDF Manuals Manuals are available in English and usually in German as well. For availability of English manuals see table below. Please download the manuals as PDF documents from our esd website www.esd.eu for free. Manuals Order No.

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