Data Translation DT2814 User Manual Download Page 1

Page: 1 / 56

Artisan Technology Group

is your source for quality

new and certified-used/pre-owned equipment

•

FAST SHIPPING AND

DELIVERY

•

TENS OF THOUSANDS OF

IN-STOCK ITEMS

• EQUIPMENT DEMOS
•

HUNDREDS OF

MANUFACTURERS

SUPPORTED

• LEASING/MONTHLY

RENTALS

• ITAR CERTIFIED

SECURE ASSET

SOLUTIONS

SERVICE CENTER REPAIRS

Experienced engineers and technicians on staff

at our full-service, in-house repair center

WE BUY USED EQUIPMENT

Sell your excess, underutilized, and idle used equipment

We also offer credit for buy-backs and trade-ins

www.artisantg.com/WeBuyEquipment

REMOTE INSPECTION

Remotely inspect equipment before purchasing with

our interactive website at

www.instraview.com

LOOKING FOR MORE INFORMATION?

Visit us on the web at

www.artisantg.com

for more

information on price quotations, drivers, technical

specifications, manuals, and documentation

Contact us:

(888) 88-SOURCE | [email protected] | www.artisantg.com

View

Instra

Summary of Contents for DT2814

Page 1: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Page 2: ...814 IBM PC XT AT COMPATIBLE A D CONVERTER BOARD Copyright 1985 by Data Translation Inc Data Translation Inc 100 Locke Drive Marlborough MA 01752 1192 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 3: ...no responsibility is assumed by Data Translation Inc for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent rights of Data Translation Inc BASIC is a trademark of Dartmouth College IBM PC IBM PC XT and IBM PC AT are trademarks of International Business Machines Corporation DT...

Page 4: ... 6 INTRODUCTION 3 1 UNPACKING 3 1 NO APPARENT DAMAGE 3 1 VISIBLE DAMAGE 3 2 CONFIGURATION 3 4 BASE ADDRESS SELECTION 3 4 INPUT RANGES 3 5 CLOCK BASE FREQUENCY SELECTION 3 6 INTERRUPT LEVEL 3 7 JUMPER SUMMARY 3 7 INTERCONNECTIONS 4 1 INTRODUCTION CONNECTION TO IBM PC BACKPLANE USER CONNECTION CONNECTIONS TO SCREW TERMINAL PANELS SINGLE ENDED CONNECTION SCHEME ARCHITECTURE AND OPERATION 4 1 4 3 4 4 ...

Page 5: ... 6 2 INTERCONNECTIONS 6 2 CALIBRATION PROCEDURE 6 2 UNIPOLAR OFFSET ADJUST 6 3 UNIPOLAR GAIN ADJUST FULL SCALE 6 3 BIPOLAR OFFSET ADJUST 5V RANGE 6 3 BIPOLAR GAIN ADJUST 5V RANGE 6 4 BIPOLAR OFFSET ADJUST 2 5V RANGE 6 4 BIPOLAR GAIN ADJUST 2 5V RANGE 6 4 EXAMPLE PROGRAMS INTRODUCTION EXAMPLE PROGRAM 1 EXAMPLE PROGRAM 2 BOARD ASSEMBLY DRAWING iv 7 1 7 1 7 3 Artisan Technology Group Quality Instrume...

Page 6: ...SIGNAL CONDITIONING PANELS CONNECTION OF THE DT2814 TO THE DT70 1 20 SCREW TERMINAL PANEL SINGLE ENDED CONNECTION SCHEME CONTROL REGISTER STATUS REGISTER A D DATA REGISTER CONNECTION OF A VOLTMETER TO THE DT2814 v 3 5 4 5 4 5 4 7 5 2 5 4 S 6 6 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 7: ...R SUMMARY 3 7 4 1 P1 PIN ASSIGNMENTS 4 2 4 3 4 2 J1 PIN ASSIGNMENTS 4 4 5 1 DT2814 REGISTERS 5 1 5 2 SOFTWARE SELECTED CLOCK FREQUENCIES 5 2 5 3 A D CHANNEL SELECTION 5 3 6 1 DATA CODING VALUES FOR UNIPOLAR INPUTS 6 3 6 2 DATA CODING VALUES FOR BIPOLAR INPUTS 6 3 vi Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 8: ...it for a specific user application CHAPTER 4 Describes the interconnections of DT2814 with the host computer system and acquisition accessories Provides a diagram of single ended connection scheme CHAPTER 5 ARCHITECTURE AND OPERATION the data the Discusses the main elements of the architecture and operation Describes DT2814 the the and registers functions of the register bits initializatiion and A...

Page 9: ...APPENDIX A BOARD ASSEMBLY DIAGRAM Gives the board assembly diagram of the DT2814 viii Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 10: ...rammable frequencies can be used to issue conversion triggers The DT2814 provides 16 single ended input channels It can be configured for unipolar or bipolar input ranges of SV 0 to 5V and 2 5V Output coding is straight binary for unipolar input ranges and offset binary for bipolar input ranges Interrupts to the processor can be generated at the completion of an A D conversion The interrupt level ...

Page 11: ...ned for thermocouple bridge and low level inputs It provides 16 differential inputs and 16 single ended outputs and effectively makes the DT2814 analog inputs differential The board provides common mode rejection of SV The DT756 Y obtains the 12V and 12V power from the J1 connector of the DT2814 board DT750 Backplane DT6700 Series Modules The DT750 signal conditioning backplane accommodates up to ...

Page 12: ...NALOG INPUTS Number of Analog Inputs Input Ranges Jumper selectable Output Data Codes Gain Input Impedance Off Channel On Channel 2 1 16 single ended 0 to 5 00V unipolar S OOV 2 5V bipolar straight binary unipolar or offset binary bipolar 1 fixed 10 megohms 10pF in parallel 10 megohms 100pF in parallel Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 13: ...sion Time A D Converter Throughput Dynamic Error THERMAL CHARACTERISTICS A D Zero Drift Unipolar Bipolar Gain Drift Differential Linearity Drift c Monotonicity 2 2 lOOnA 30V 20V 12 bits Less than 1 2 LSB Less than 1 2 LSB 1 2 LSB Within 03 FSR 80dB at 1kHz Adjustable to 0 Adjustable to 0 8 microseconds 30 microseconds 25kHz 75 LSB for a lOV change max 20 microvolts deg C 17ppm of FSR deg C 30ppm o...

Page 14: ...ck Frequencies Divisor usable Frequencies 2 3 SPECIFICATIONS ON BOARD CLOCK SO to 600kHz O OOSHz to 600kHz 1 to 10 000 000 in decade increments O OOSHz to 20kHz Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 15: ...gned Base Address Interrupt Options Interrupt Source Analog Data Format Data Path 2 4 IBM PC XT AT I O mapped address Presents 1 busload 2 bytes 220H Jumper selectable to level 3 4 5 6 or 7 Finish bit A D conversion done 12 bit A D data left hand justified 8 bits Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 16: ...LES 20 pin J1 Connector Cable Assembly 2 5 SPECIFICATIONS POWER REQUIREMENTS 10 138mA 10 22mA 10 29mA 4 23 X 4 23 10 75 X 1075cm 3 5 ounces 98g 7 500 feet 2286m 0 to 50 deg C 25 to 70 deg C To 95 non condensing 3M No 3493 2003 compatible connector 3M 3421 EP047 20 conductor flat ribbon 8ft EP047 1 18 version Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg co...

Page 17: ...BLE SCREW TERMINAL PANELS 2 8 COMPATIBLE SCREW TERMINAL PANELS Screw Terminal Panels 2 6 DT701 20 DT709 S DT709 M DT756 Y DT750 6700 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 18: ...he shipping carton proceed as outlined in the next two sections 3 2 1 NO APPARENT DAMAGE If no visible damage is found proceed as follows 1 Place the container on a stable surface and cut the shipping tape 2 Grasp the underneath the top front of the flat carton and lift forward and up to open 3 While placing one hand firmly on a metal portion of the system chassis remove the item from the styrofoa...

Page 19: ...d do NOT perform any repair or installation of the damaged item If the delivery carrier s agent was not present during unpacking call for an insurance claim inspection 2 Have the insurance agent inspect the damage and arrive at an agreement to repair or replace the damaged item 3 If the item is to be repaired call or write Customer Service Department Data Translation Inc 100 Locke Drive Marlboro M...

Page 20: ... packaging and that it is handled with ground protection Static electricity is potentially damaging to electrical components on Data Translation products 6 Return the damaged item with the RMA number to the address above 3 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 21: ...ted on the component side of the DT2814 board and on the board assembly drawing found in Appendix A 3 3 1 BASE ADDRESS SELECTION The DT2814 occupies two locations in the IBM PC I 0 address space The base address ranges from 200H through 3FEH Figure 3 1 shows the jumpers which select the base address Address bit A9 is always 1 to define the lower end of the I 0 address segment selected for the boar...

Page 22: ...that the jumper is removed AO is not configured It is decoded on the board When set 1 it selects between the Control Register write command and the Status Register read command When clear 0 it selects the Data Register FIGURE 3 1 BASE ADDRESS SELECTION OF 220H 3 3 2 INPUT RANGES The DT2814 permits selection of three voltage input ranges one unipolar 0 to SV and two bipolar 2 5V and SV If the board...

Page 23: ...ration of jumpers W9 W10 and W11 Program selected decade divisors further divide each base frequency for the particular application The software division of the base frequency is discussed in Chapter 5 The selection of the base frequency is shown in Table 3 2 TABLE 3 2 BASE FREQUENCIES OF THE ON BOARD CLOCK I BASE FREQUENCY I JUMPERS I I KHZ I W9 I W1 0 I W11 I 1 1 I 50 I In I In I In I I 100 FC I...

Page 24: ...IRQS I Out I Out I In I Out I Out I I IRQ6 I Out I Out I Out I In I Out I I IRQ7 I Out I Out I Out I Out I In I NOTES 1 All jumpers out in factory configuration 3 4 JUMPER SUMMARY Table 3 4 gives a summary of the configurations of jumpers on the DT2814 board All the jumpers are user configurable for the selection of various parameters The factory default configuration of each jumper is noted in pa...

Page 25: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 26: ...Translation screw terminal panels to the DT2814 and provides a discussion and a diagram of single ended inputs 4 2 CONNECTION TO IBM PC BACKPLANE The DT2814 plugs into the IBM PC compatible backplane via its 62 pin P1 edge connector All communication between the host processor and the DT2814 is carried through this connector The pin assignments of the P1 connector are given Table 4 1 4 1 Artisan T...

Page 27: ...e I Al2 Al9 Address Bit 19 MSB A13 Al8 Address Bit 18 A14 Al7 Address Bit 17 AlS Al6 Address Bit 16 Al6 AlS Address Bit lS Al7 Al4 Address Bit 14 AlB Al3 Address Bit 13 Al9 Al2 Address Bit 12 A20 All Address Bit 11 A21 AlO Address Bit 10 A22 A9 Address Bit 9 A23 A8 Address Bit 8 A24 A7 Address Bit 7 A25 A6 Address Bit 6 A26 AS Address Bit S A27 A4 Address Bit 4 A28 A3 Address Bit 3 A29 A2 Address ...

Page 28: ...ST 2 5 VOLT POWER DMA REQUEST 2 12 VOLT POWER RESERVED 12 VOLTS OWER GROUND MEMORY WRITE COMMAND MEMORY READ COMMAND I 0 WRITE COMMAND I 0 READ COMMAND DMA ACKNOWLEDGE 3 DMA REQUEST 3 DMA ACKNOWLEDGE 1 DMA REQUEST 1 DMA ACKNOWLEDGE 0 CLOCK INTERRUPT REQUEST 7 INTERRUPT REQUEST 6 INTERRUPT REQUEST 5 INTERRUPT REQUEST 4 INTERRUPT REQUEST 3 DMA ACKNOWLEDGE 2 TERMINAL COUNT ADDRESS LATCH ENABLE 5 VOLT...

Page 29: ...cuitry on Data Translation screw terminal panels Very little current is available on those pins The 12V should NOT be used to power external user supplied circuits 4 4 CONNECTIONS TO SCREW TERMINAL PANELS rhis section illustrates connections of the Card to some compatible screw terminal ivailable from Data Translation DT2814 panels igure 4 1 shows the connection of the DT2814 to crew terminal pane...

Page 30: ... TO SOME DATA TRANSLATION SCREW TERMINAL SIGNAL CONDITIONING PANELS Figure 4 2 illustrates the connection of the DT701 20 screw terminal panel to two DT2814 boards DT2814 EP047 DT Ol 20 EP047 DT2814 FIGURE 4 2 CONNECTION OF THE DT2814 TO THE DT701 20 SCREW TERMINAL PANEL 4 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 31: ...m a differential input Single ended inputs should be restricted to short lead lengths less than 15 feet A diagram of the single ended connection scheme is given in Figure 4 3 v0 I I I I I I I I I I I I I I I I I TPOOlOP FIGURE 4 3 SINGLE ENDED CONNECTION SCHEME TOTES 1 2 All signal inputs must be referenced to Analog Ground All unused analog input channels should be connected to Analog Ground Fail...

Page 32: ...tatus Register and A D Data Register All Jperations on the DT2814 are carried out using these cegisters Table 5 1 shows the relative address and lccessibility of each register TABLE 5 1 DT2814 REGISTERS REGISTER NAME I ADDRESS I ACCESS I 1 Control Register I Base I Write byte I Status Register I Base I Read byte I Data Register I Base 11 Read 2 bytes I 5 1 I l Artisan Technology Group Quality Inst...

Page 33: ...s obtained by the various settings of these bits are given in Table 5 2 The jumper configurations for the selection of the base frequency are given in Chapter 3 TABLE 5 2 SOFTWARE SELECTED CLOCK FREQUENCIES I F2 Fl FO I SELECTED tREQUENCY I 1 1 I 0 0 0 I Base Frequency I I 0 0 1 I Base Frequency 10 I I 0 1 0 I Base Frequency 100 I I 0 1 1 I Base Frequency lk I I 1 0 0 I Base Frequency lOk I I 1 0 ...

Page 34: ...t A D shows the bit selection TABLE 5 3 A D CHANNEL SELECTION I CHANNEL SELECT BITS I SELECTED I I C3 C2 C1 co I CHANNEL NO I 1 1 I o o o o I o I I o o o 1 I 1 I I o o 1 o I 2 I I o o 1 1 I 3 I I o 1 o o I 4 I I o 1 o 1 I 5 I I o 1 1 o I 6 I I o 1 1 1 I 7 I I 1 o o o I a I I 1 o o 1 I 9 I I 1 o 1 o I 10 I I 1 o 1 1 I 11 I 1 1 1 o o I 12 I I 1 1 o 1 I 13 I I 1 1 1 o I 14 I 1 1 1 1 1 I 15 I 5 3 Arti...

Page 35: ...alid converted data is in the A D Data Register A 0 indicates that the current conversion is still in process and that the data in the Data Register is not valid If an interrupt level is selected for the board see Chapter 3 the setting of this bit will interrupt the processor and allow the interrupt routine to read the converted data Reading the A D Data Register will clear the Finish bit BIT 6 Er...

Page 36: ...ndicates that the on board clock is enabled for triggers A 0 indicates conversions are triggered by a write to the Control Register BITS 3 0 Channel Address Select Bits C3 C2 C1 CO These four bits read back the channel selected for the current conversion by the corresponding bits in the Control Register 5 5 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 37: ... Data Register in two steps The first read accesses the high byte the second read accesses the low byte The lower four bits of the low byte always read zero The A D Data Register format is given in Figure 5 3 A First data read high byte I 7 I 6 I 5 I 4 I 3 I 2 I 1 I o I Bit No 1 1 ID111D10ID9 IDS ID7 ID6 IDS ID4 I Designation B Second data read low byte I 7 I 6 I 5 I 4 I 3 I 2 I 1 I 0 I Bit No 1 1...

Page 38: ...ggered by the software method Simply loading the Control Register with the address of the hannel to be acquired starts an A D conversion The Enable bit bit 4 of the byte loaded into the Control Register must be clear After the A D conversion is completed and data is read from the A D Data Register the Control Register must be loaded again to initiate another conversion Thus successive conversions ...

Page 39: ...the channel to be acquired and the trigger source to be used If bit 4 Enable of the byte is set 1 the board will wait for a clock trigger to initiate repetitive conversions on the channel specified by the channel select bits bits 3 to 0 of Control Register Conversions will occur at the clock rate selected by the configuration of jumpers W9 WlO and Wll and the state of bits 7 to 5 of the Control Re...

Page 40: ...S and R6 FULL SCALE 6 2 GUIDELINES Some general guidelines must be observed performing a calibration on the DT2814 6 2 1 ASSUMPTIONS when 1 Calibration will be done on Channel 0 with all other channels returned to Analog Ground pin 18 2 The input cable is less than 3 meters 10 ft long 3 Software is available to provide continuous readings of Channel 0 and display them on a CRT 6 1 Artisan Technolo...

Page 41: ...nect the voltmeter to the DT2814 as shown in Figure 6 1 Ch 0 Jl PINl DT2814 VOLTMETER AGND Jl PIN18 TP0009P FIGURE 6 1 CONNECTION OF A VOLTMETER TO THE DT2814 6 3 CALIBRATION PROCEDURE Calibration of the DT2814 should be performed at six month intervals or when the input range has been changed The offset adjust is always done first followed by the gain adjust Note that the input voltages are diffe...

Page 42: ... 1 2 FS I 400 I 2 5000 I 1 2500 I I FS 1 LSB I 001 I 4 9976 I 2 4988 I I Fs I ooo I 5 0000 I 2 5000 I 6 3 1 UNIPOLAR OFFSET ADJUST Apply a de input voltage of 1 2 LSB 0 610mV and adjust the offset potentiometer R6 for flicker between output codes OOOH and 001H see Table 6 1 6 3 2 UNIPOLAR GAIN ADJUST FULL SCALE Apply a de voltage of 1 and 1 2 LSB below FULL SCALE 4 9982V and adjust the gain potent...

Page 43: ...E Apply a de input voltage of 1 2 LSB above the negative FULL SCALE 2 4994V and adjust the offset potentiometer R6 for flicker between output codes OOOH and 001H see Table 6 2 6 3 6 BIPOLAR GAIN ADJUST 2 5V RANGE Apply a de voltage of 1 and 1 2 LSB below FULL SCALE 2 4982V and adjust the gain potentiometer RS for flicker between codes FFE and FFF see Table 6 2 6 4 Artisan Technology Group Quality ...

Page 44: ...BM system using their BASCOM function The program assumes that the DT2814 is set for a base address of 220H and no interrupts are enabled 10 CLS 20 LOCATE 3 1 1 12 Set cursor to a known position 30 FOR Y O TO 15 Loop on all 16 channels 40 IF Y 9 THEN 70 50 PRINT ch y Print the channel no I 60 GOTO 80 70 PRINT ch y I 80 FOR X 1 TO 3 Sample channel 3 times 90 OUT H220 Y Write select channel starts t...

Page 45: ...M THEN 210 LOCATE 24 24 1 12 220 END 7 2 Read low byte at base 1 Print out the data high byte low byte Get three readings Do next channel Set cursor to overwrite previous data 30 If no keyboard input then continue Else read 16 channels and stop Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 46: ...40 40 LOCATE 3 1 1 12 Set cursor to a known position 50 FOR Y 1 TO 16 16 lines per data block 60 FOR X 1 TO 8 8 samples per line 70 OUT H220 N Select channel trigger 80 LET A O 90 A INP H220 100 IF A 128 THEN 110 ELSE 110 B INP H221 120 C INP H221 130 PRINT HEX B HEX C 140 150 160 170 NEXT X PRINT NEXT Y LOCATE 3 1 0 12 sample Read Status Reg for FINISH bit 90 If set conversion done data valid Rea...

Page 47: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 48: ...APPENDIX A BOARD ASSEMBLY DRAWING This appendix contains the board assembly drawing of the DT2814 A 1 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 49: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 50: ... c IQ QJ A6 201 g g g r H o J 0 o oi 0 oo o 0 oa o oa o oo o o o o lolOI o o o o o o oo g 0 0 o o o o o o o o o J o o o o a o o o o o o o o oo C120 o 0 0 t u 00 mR17 00 RS1 10 00 o oMooMo RiB 10 mmoo 0 106lw11JMo sMo ol lo 01 _lo Dl lo or 10 a o o o R20 1 Jigg go oo o gg gg gg g 0 I q oo oo oo o c16 0 0 0 0 0 0 0 oo oo 00 o cu ool_joo oo o P1 FEVISICN lOr I L lA I IE UIIPTIC W DATE AI I RQ IfJl EN...

Page 51: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 52: ...bles 2 5 Control Register 5 2 Conversion A D 5 7 Dynamic Performance 2 2 Equipment Required 6 2 Example Programs 7 1 Figures INDEX List v Initialization 5 7 Input Ranges 3 5 Interconnections 4 1 6 2 Interface Characteristics 2 4 Interrupt Level 3 7 Jumper Summary 3 7 List Figures v Tables vi Operation 5 7 Overview 1 1 Physical Environmental 2 5 Pin Assignments P1 4 2 Power Requirements 2 5 Precaut...

Page 53: ... Gain Adjust 6 3 Unipolar Offset Adjust 6 3 Index 2 Unpacking 3 1 No Apparent Damage 3 1 Visible Damage 3 2 Unpacking and Conf guration 3 1 User Connection 4 3 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 54: ...where ahould it be placed Please note the type of user reader that you most nearly representI Hardware engineer Systems engineer Technician Assembly language programmer Bigher level language programmer Occasional programmer experienced Please enter your name and address below Rame_______________________________________Date_____________ Organizatio Street________________________ City_______________...

Page 55: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 56: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Search results

Summary of Contents for DT2814

Reviews:

Related manuals for DT2814

Brands by name

Popular brands

Data Translation DT2814, User Manual

Search results

Summary of Contents for DT2814

Reviews:

Related manuals for DT2814

Brands by name

Popular brands