DGH A1000 series Spezifikationen

Artisan Technology Group is your source for quality new and certied-used/pre-owned equipment• FAST SHIPPING AND DELIVERY• TENS OF THOUSANDS OF IN-S

Getting Started 1-5RS-485 Quick Hook-up to a RS-232 portAn RS-485 module may be easily interfaced to an RS-232C terminal forevaluation purposes. This

Getting Started 1-6Figure 1.2 D3000/4000 RS-485 Quick Hook-up.Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | w

Getting Started 1-7Note: If using a DB-9 connector ground is tied to pin 5 only.Figure 1.3 D3000/4000 RS-485 Quick Hook-up with RS-232C Port.Artisan

Getting Started 1-8Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Chapter 2Functional DescriptionThe D3000/4000 Computer to Analog Output interfaces provide accurateanalog process control signals in response to simpl

Functional Description 2-2D4000 models also feature a simple Analog to Digital Converter (ADC)which is used to monitor the output signal. The ADC inp

Functional Description 2-3Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Functional Description 2-4Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Chapter 3CommunicationsIntroductionThe D3000/4000 modules have been carefully designed to be easy tointerface to all popular computers and terminals.

Communications 3-2time-out error has occurred. After the communications time-out it is as-sumed that no response data is forthcoming. This error usua

D3000/4000 SERIES USERS MANUALREVISED: 6/1/94DGH CORPORATIONP. O. BOX 5638MANCHESTER, NH 03108TELEPHONE: 603-622-0452FAX: 603-622-0487The information

Communications 3-3Single Module ConnectionFigure 1.1 shows the connections necessary to attach one module to a host.Use the Default Mode to enter the

Communications 3-4The daisy chain network must be carefully implemented to avoid the pitfallsinherent in its structure. The daisy-chain is a series-c

Communications 3-5is equal to the time necessary to retransmit one character using the baudrate setup in the module:Baud Rate Delay300 33.30mS600 16.

Communications 3-6result of the new baud rate.Using A Daisy-Chain With A Dumb TerminalA dumb terminal can be used to communicate to a daisy-chained s

Communications 3-7Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Communications 3-8on one serial communications port.RS-485 Multidrop SystemFigure 3.2 illustrates the wiring required for multiple-module RS-485 sys-

Communications 3-9form of all commands to detect transmission errors. In situations wheremany modules are used on a long line, voltage drops in the p

Communications 3-10Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Chapter 4Command SetThe D3000/4000 modules operate with a simple command/response proto-col to control all module functions. A command must be transm

Command Set 4-2Data StructureMany commands require additional data values to complete the commanddefinition as shown in the example commands in Tabl

2Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Command Set 4-3appears when large data values saved in the module’s EEPROM are readback. In most practical applications, the problem is non-existent

Command Set 4-41) a normal response indicated by a ‘ * ‘ prompt2) an error message indicated by a ‘ ? ‘ prompt3) a communications time-out errorWhen

Command Set 4-5ample:Command: $1RD (no checksum)Response: *+00072.10Command: $1RDEB (with checksum)Response: *+00072.10Command: $1RDAB (incorrect ch

Command Set 4-6Add the remaining character values:* 1RD+00072. 102A + 31 + 52 + 44 + 2B + 30 + 30 + 30 + 37 + 32 + 2E + 31 + 30 = 2A4The two lowest-

Command Set 4-7Table 4.1 D3000/4000 Command SetCommand Definition Typical TypicalCommand ResponseMessage MessageD3000/4000 CommandsACK Acknowledge $

Command Set 4-8Acknowledge (ACK)The ACKnowledge command is a hand-shaking command used in conjunc-tion with the Analog Output (AO) command. It is u

Command Set 4-9are correct, it directs the module to go ahead and perform the AO by sendingthe ACK command. To complete the sequence:Command: $1ACKR

Command Set 4-10The data in the AO command is also checked against user-defined limitsspecified by the LO and HI commands. Exceeding the user-define

Command Set 4-11Hex Output (HX)The HeX Output (HX) command controls the analog output by sendinghexadecimal data directly to the Digital to Analog C

Command Set 4-12(AO) command. This is useful in applications where unrestricted outputsmay cause damage or improper operation of other equipment or

3TABLE OF CONTENTSWarranty 4CHAPTER 1 Getting StartedTerminal Designations 1-1Default Mode 1-2Quick Hook-Up 1-3CHAPTER 2 Functional Descriptio

Command Set 4-13LOw Limit (LO)The LOw Limit (LO) command sets a minimum limit to the analog outputdata. The data specified by the LO command is stor

Command Set 4-14Manual Slope (MS)(D4000)The Manual Slope (MS) command sets the output slew rate for manualcontrol using the UP* and DN* (down) input

Command Set 4-15The MN and MX commands are covered thoroughly in chapter 10.The MN and MX values are saved in nonvolatile memory and may be readback

Command Set 4-16Command: #1RAOResponse: *1RAO+00017.50F3Read Data (RD)The Read Data (RD) command reads back the digital data being sent to theDAC at

Command Set 4-17Command: #1RHIResponse: *1RHI+00020.00E9Read IDentification (RID)The Read IDentification (RID) command reads out the user data store

Command Set 4-18Command: #1RMSResponse: *1RMS+00004.00FARead MaXimum (RMX)The Read MaXimum (RMX) command reads out the scaling data corre-sponding t

Command Set 4-19The response contains the module’s channel address, baud rate and otherparameters. Refer to the setup command (SU), and Chapter 5 fo

Command Set 4-20Response: *+00005.00Command: #1RSVResponse: *1RSV+00005.0004Read Watchdog Timer (RWT)(D4000)The Read Watchdog Timer (RWT) command re

Command Set 4-21The SetUp command is used to modify the user-specified parameterscontained in the EEPROM to tailor the module to your application. S

Command Set 4-22automatically performs an internal Analog Output (AO) command with thestored data. If the AO command would have resulted in an error

4WARRANTYDGH warrants each D3000 and D4000 series module to be free from defectsin materials and workmanship under normal conditions of use and servic

Command Set 4-23The TRX and TRN commands are used on D4000 modules to trim theAnalog-to-Digital Converter (ADC) which provides the analog readback o

Command Set 4-24Response: *Command: #1WEResponse: *1WEF7If a module is write enabled and the execution of a command results in anerror message other

Command Set 4-25NULL ($00), CR ($0D), $ ($24), and # ($23). The ADDRESS ERROR willoccur when an attempt is made to load an illegal address into a mo

Command Set 4-26module parity. In this situation, the easiest solution may be to change theparity in the host to obtain communication. At this point

Chapter 5Setup Information/SetUp CommandThe modules feature a wide choice of user configurable options which givesthem the flexibility to operate on v

Setup Information and SetUp Command 5-2Command SyntaxThe general format for the SetUp (SU) command is:$1SU[byte1][byte 2][byte 3][byte 4]A typical Se

Setup Information and SetUp Command 5-3When using the SU command to change the address of a module, be sureto record the new address in a place that

Setup Information and SetUp Command 5-4Byte 2Byte 2 is used to configure some of the characteristics of the communica-tions channel; linefeeds, parit

Setup Information and SetUp Command 5-5accidently lost. This is very important when changing the baud rate of an RS-232C string.Let’s run through an

Setup Information and SetUp Command 5-6If the module does not respond to the new baud rate, most likely the setupdata is incorrect. Try various baud

Chapter 1Getting StartedIntroductionThe D3000/4000 series are completely self-contained computer-to-analogoutput interfaces. They are designed to be m

Setup Information and SetUp Command 5-7Byte 3This byte contains the setup information for additional communicationsoptions. The default value for thi

Setup Information and SetUp Command 5-8Table 5.3 Byte 3 Options.BYTE 3FUNCTION DATA BIT76543210NOT USED 0 0CONTINUOUS DISABLED 0CONTINUOUS ENABLED 1L

Setup Information and SetUp Command 5-9Manual Mode DisableBit 2 is normally set to ‘0’ which allows the Manual Mode inputs to affect theanalog output

Setup Information and SetUp Command 5-10setup with the Read Setup command:Command: $1RSResponse: *310701C0By referring to Table 5.3, we find that the

Chapter 6Digital I/O Functions and Manual ModeMANUAL MODES/DIGITAL INPUTSEach D3000/4000 module has three digital input connections designated asDI0/D

Digital I/O Functions and Manual Mode 6-2MANUAL MODESThe D3000/4000 modules may be configured to use the digital inputs tocontrol the analog output. T

Digital I/O Functions and Manual Mode 6-3The slope rate on D3000 modules is fixed and cannot be changed. Themanual slope on D3000 units is scaled so t

Digital I/O Functions and Manual Mode 6-4Figure 6.3 Manual Up/Down Control With Host Lock-Out.CONTROLLER INPUTThis Manual Mode is a variation of the m

Digital I/O Functions and Manual Mode 6-5LIMIT SWITCHESTwo of the Manual Modes allow the use of limit switches or other externaldigital signals to lim

Digital I/O Functions and Manual Mode 6-6Figure 6.5 Using Limit Switches To Stop An Analog Output Ramp.On D4000 units with controlled output ramps, th

Getting Started 1-2Pins 1 and 2 are electrically isolated from the other pins.Pin 3 DI2Pin 4 DI1/UP*Pin 5 DI0/DN*Pins 3-5 are digital input pins. The

Chapter 7Power SupplyD3000/4000 modules may be powered with an unregulated +10 to +30Vdcsupply. Power-supply ripple must be limited to 5V peak-to-peak

Power Supply 7-2Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Symptom:RS-232 Module is not responding to commands.RS-485 Module is not responding to commands.Module responds with ?1 COMMAND ERROR TO every command

1. Perform steps 1, 2, 4, 5 and 6 listed above.2. Ensure that module RS-485 "Data" line (module terminal pin #7) isconnected to the Host RS-

Chapter 9CalibrationD3000/4000 units feature state-of-the art digital trimming techniques toeliminate the need for calibration pots or other hardware

Calibration 9-2Calibration Procedure-Voltage units1) Connect voltmeter to analog output2) Set the output to -full scale with Analog Output (AO) com

Calibration 9-3The measured output is +10.123V. Report the measured output to themodule with the Trim Maximum (TMX) command:Command: $1WEResponse:

Calibration 9-4be easier to re-scale the D4000 to standard voltage and current ranges thatmay be compared directly with measured output values. Calib

Calibration 9-5D4000 Calibration AddendumDue to a microprocessor 'bug', early production D4000 units will not executethe TRN command if the

Calibration 9-6Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Getting Started 1-3settings. However, there is one minor drawback in using EEPROM insteadof switches; there is no visual indication of the setup info

Chapter 10D4000 FeaturesD4000 FeaturesThe D4000 series of computer-to-analog output modules contain manyintelligent enhancements not found in the D300

D4000 Features 10-2nearest value that can be represented by the 12-bit D-to-A converter and anew output is obtained. In this manner the DAC is smooth

D4000 Features 10-3command is used twice a minute to control acceleration and deceleration,the 10,000 cycle write limit of the EEPROM will be exceede

D4000 Features 10-4Manual SlopesThe D4000 allows the user to specify the output slew rate when the outputis controlled by the manual UP/DN inputs. Th

D4000 Features 10-5scale.Example: A D4181 voltage output module is used to supply the controlsignal to a motor speed controller. The full scale rang

D4000 Features 10-6input value of 100%:Command: $1MX+00100.00Response: *The module is now scaled in percentage of valve opening. To set the valveto

D4000 Features 10-7command.The SV and RSV commands are detailed in the command section of chapter4.WATCHDOG TIMERD4000 units contain a programmable s

D4000 Features 10-8provides readback data to the microprocessor. The analog data may be readback with the Read Analog Data (RAD) command. The RAD dat

D4000 Features 10-9D4000 units may be configured to operate in a special mode calledContinuous Input Mode. This mode allows the D4000 to be slaved d

D4000 Features 10-10couple. This is accomplished by rescaling the D4251:Command: $1MN+00100.00Response: *Command: $1MX+00300.00Response: *Continuous

Getting Started 1-4measure the signals from current-output modules, a sense resistor and avoltmeter may be used as shown in Fig. 1.1. Turn power on t

Table of ASCII characters (A) and their equivalent values in Decimal (D),Hexadecimal (Hex), and Binary. Claret (^) represents Control function.A D Hex

ASCII TABLE A-2A D Hex Binary D Hex Binary# 35 23 00100011 163 A3 10100011$ 36 24 00100100 164 A4 10100100% 37 25 00100101 165 A5 10100101& 38 26

ASCII TABLE A-3A D Hex Binary D Hex BinaryL 76 4C 01001100 204 CC 11001100M 77 4D 01001101 205 CD 11001101N 78 4E 01001110 206 CE 11001110O 79 4F 0100

ASCII TABLE A-4A D Hex Binary D Hex Binaryu 117 75 01110101 245 F5 11110101v 118 76 01110110 246 F6 11110110w 119 77 01110111 247 F7 11110111x 120 78

Appendix BD3000/4000 SpecificationsSpecifications (@ +25°C and nominal power supply voltage).Analog Output• Single channel analog output.Voltage: 0-1V

D3000/4000 Specifications B-2Communications• RS-232C, RS-485.• Up to 124 multidrop modules per host communications port.• User selectable channel add

Artisan Technology Group is your source for quality new and certied-used/pre-owned equipment• FAST SHIPPING AND DELIVERY• TENS OF THOUSANDS OF IN-S