ADR2000 USER MANUAL
Contents
1. 9 O DIGITAL I O EVENT ANALOG OUTI ANALOG INPUT POWER E DRY CONTACT 30 LOCATE 1 1 locate cursor 40 PRINT 1 CE clears event counter 50 PRINT PRESENT COUNT IS COUNT displays count data 60 PRINT 1 RE sends RE command to ADR2000 70 INPUTZ1 COUNT retrieves count data 80 GOTO 50 repeat procedure ONTRAK CONTROL SYSTEMS INC 21 24 www ontrak net APPENDIX A CONNECTION DIAGRAM J1 RS232 485 J3 1 GND RS485 2 GND 1 GND 2 3 RC RS232 2 GND 4 and 8 TR 65485 4 8 TR RS485 7 15 0 5 and 9 65485 5 and 9 5485 2 1mm 6 VDC 6 VDC Center Negative 7 TX RS232 1 ONTRAK a qc ra ADR2000 i Du 0 8421 m 09 ADDRESS _ 00 0 oo 1 DSDS 609026026 0902609260906 PriSrfiPiQp SsPbprLiririri DIGITAL EVENT ANALOG OUT ANALOG INPUT2. CONTROL SYSTEMS INC 22 24 www ontrak net APPENDIX ELECTRICAL SPECIFICATIONS ADR2000 Version A and Version B Supply Voltage 5VDC 10 or 7 9VDC via wall adaptor Supply Current 40mA Typical 60mA Maximum Operating Temperature 0 50C all digital outputs unloaded Analog Inputs 8 Resolution 12 bits Accuracy 0 1 uncalibrated 02 calibrated Range 0 5VDC or 5VDC Protection OVP to 15VDC Input Impedance 1Mohm Analog Outputs 2 VERSION A Type Voltage Resolution 12 bits Range 0 5VDC Output Current 5mA Maximum total of both outputs VERSION B Type PWM Resolution 10 bits Frequency 9 76Khz 2 44Khz 610Hz software selected Range TTL Output Current Sink 20mA Maximum Source 20mA Maximum Digital I O 8 Sink Current 20mA Maximum Source Current 20mA Maximum Event Counter 1 Type TTL or Contact Resolution 16 bits Communication Interface RS232 and RS485 9600 baud 8 bit words no parity 1 start bit Daisy chain via RS485 Visit our web site at http www ontrak net for additional applications and programming examples ONTRAK CONTROL SYSTEMS INC 23 24 www ontrak net APPENDIX C MOUNTING DIMENSIONS ADR Interface Mounting Dimensions in inches lt 3 0 gt gt ADR101 ADR112 ae Ext Dim 3 0 X 2 8 Hole Pat 2 6 X 2 4 _ Hole Dia 0 125 y FRONT 4 5 4 ADR2000A ADR2000B 50 ADR210
3. O N QOQ A A N ZU g DIGITAL I O EVENT ANALOG OUT ANALOG INPUT POWER 10Kohm Pot com port clear screen locate cursor send RDO command to ADR2000 retrieve data from ADR2000 convert data to percent display it repeat procedure To connect switches to digital I O lines only one additional component is required Each digital input line used to read a switch must be tied to 5V via a 10Kohm resistor This is to avoid leaving the digital port floating when the switch is in the open position The switch is then connected between the digital port and ground The sample BASIC program first configures the digital I O lines as input and then reads the switches and displays their status on the video screen ADR2000 2909062909026 2906926090609 S 9 BIS gt gt 2 2 x P a S 8 2 2 825 DIGITAL I O EVENT ANALOG OUTI ANALOG INPUT POWER 10 OPEN COM1 9600 N 8 1 CS DS RS AS 1 30 LOCATE 1 1 40 PRINT 1 CPA11111111 50 REM 60 PRINT 1 RPAO ONTRAK CONTROL SYSTEMS INC 18 24 www ontrak net opens com port 20 CLS clears screen locates cursor configures port as input forces CR SW1 70 INPUTZ1 SW1 saves status in variable SW 1 80 PRINT 1 RPA1 PA1 SW2 90 INPUT 1 SW2 saves status in variable SW2 100 T1 CLOSED IF SW1 1 THEN
4. Input range 0 5VDC differential n 0 to 7 RCn Returns status of differential port specified by n in decimal format Input range 5VDC differential n 0 to 7 ANALOG OUTPUT COMMAND SUMMARY VAdddd Outputs decimal data dddd as analog voltage on Terminal V1 0000 4095 5VDC Version A Only VBdddd Outputs decimal data dddd as analog voltage on Terminal V2 0000 4095 5VDC Version A Only FH Sets frequency for PWM outputs to 9 76Khz Version B Only FM Sets frequency for PWM outputs to 2 44Khz Version B Only FL Sets frequency for PWM outputs to 610 Hz Version B Only EA Enables 10 bit PWM output on Terminal V1 Version B Only EB Enables 10 bit PWM output on Terminal V2 Version B Only DA Disables 10 bit PWM output on Terminal V1 Version B Only DB Disables 10 bit PWM output on Terminal V2 Version B Only TAdddd Sets period of PWM module A Version B only TBdddd Sets period of PWM module B Version B only DIGITAL COMMAND SUMMARY CPAxxxxxxxx Configures PORT A x21 for input x 0 for output SPAxxxxxxxx Output binary data to PORT A x 1 RPA Returns status of all I O lines in PORT A in binary format RPAn Returns status of I O line specified by n n 0 to 7 MAddd Outputs decimal data 999 to PORT A 999 0 to 255 PA Returns status of PORT A in decimal format RESPAn Resets I O line specified by n in PORT A n2 0to7 SETPAn Sets I O line specifi
5. printed displayed saved or whatever is required by the application A BASIC PROGRAM EXAMPLE A complete BASIC program which reads analog port 0 and sets PAO if the analog port is above decimal value 2048 2 5 volts is shown below 10 OPEN COM1 9600 n 8 1 CS DS RS AS 1 opens and configures serial file 20 PRINT 1 CPA11111110 configures PAO as output 30 REM FORCES lt CR gt 40 PRINT 1 RESPAO resets PAO 50 REM FORCES lt CR gt 50 PRINT 1 RDO isends RDO command 60 INPUT 1 ANO receives data into variable ANO 70 IF ANO gt 2048 then PRINTZ1 SETPAO GOTO 50 sends SETPAO command if ANO gt 50 and returns to line 50 80 PRINT 1 GOTO 50 resets PAO and returns to 50 Visit our web page at www ontrak net for additional programming examples in BASIC Visual Basic and C 5 SENDING COMMANDS IN TURBO C TO THE ADR2000 This section will demonstrate how to send and receive data from the ADR2000 using TURBO C It outlines the commands used to configure the serial port bioscom send data out through the serial port fprintf and receive data through the serial port fscanf Commands used in TURBO C to access the ADR2000 require the following include files to be declared at the start of TURBO C programs include lt stdio h gt include lt bios h gt CONFIGURING THE SERIAL PORT The first step in accessing the ADR2000 via the serial port is configuring the serial port to the proper
6. 0 ADR2010 A ADR2200 ES Ext Dim 5 4 X 2 8 Hole Pat 5 0X2 4 Hole Dia 0 125 2 FRONT 4 7 8 gt ADRTERM i E Ext Dim 7 8X 1 5 15 11 y d Hole Pat 7 4 1 1 ERONE Hole Dia 0 125 ONTRAK CONTROL SYSTEMS INC 24 24 www ontrak net
7. ADR2000 Version A Version B ANALOG DIGITALRS232 RS485 INTERFACE USER MANUAL V 3 0 Caution The ADR2000 is a static sensitive device Observe proper procedures for handling static sensitive devices ONTRAK CONTROL SYSTEMS INC 764 Notre Dame Avenue Unit 1 Sudbury Ontario CANADA 2T2 705 671 2652 VOICE 705 671 6127 FAX www ontrak net WEB Ontrak Control Systems Inc reserves the right to change product specifications to improve the product Although every attempt has been made to insure accuracy of information contained in this manual Ontrak Control Systems Inc assumes no liability for inadvertent errors Warranty This ADR2000 is warranted from defects in workmanship and materials for a period of 90 days Liability for defects is limited to the purchase price of the product This warranty shall not apply to defects resulting from improper modifications or use outside published specifications Hyperterminal and Windows are trademarks of Microsoft Corporation APPLE MACINTOSH and MAC are trademarks of Apple Computer Inc PC XT AT PS 2 are trademarks of International Business Machines Inc COPYRIGHT 1999 ONTRAK CONTROL SYSTEMS INC 5 READ FIRST 3 1 Communication options a The ADR2000 RS232 Interface 4 b The ADR2000 RS485 Interface 5 2 Powering the ADR2000 5 3 ADR2000 Commands 6 a Analog Input Commands 7 8 b Analog Output Commands C Di
8. E lt CR gt Event counter is cleared to 00000 ONTRAK CONTROL SYSTEMS INC 10 24 www ontrak net Reads and clears event counter example lt gt 12034 Count is returned 12034 and counter is reset to 00000 E ID COMMAND IDN Returns ID code Version A returns 2000 Version B returns 2001 may be omitted ONTRAK CONTROL SYSTEMS INC 11 24 www ontrak net 4 SENDING COMMANDS IN BASIC TO THE ADR2000 OPENING A SERIAL FILE Commands may be sent to the ADR2000 using a terminal emulation program such as Hyperterminal by simply entering commands and pressing cr With BASIC the ADR2000 is connected to the computer via a serial cable and BASIC treats the ADR2000 as a serial file Before commands can be sent to the ADR2000 this serial file must be opened and initialized This should be done at the start of any program that is to access the ADR2000 The command to open a serial file is shown below 10 OPEN COM 1 9600 n 8 1 CS DS RS AS 1 This line opens a serial file and labels it as serial file 1 This allows access to the ADR2000 using PRINT 1 and INPUT 1 commands SENDING COMMANDS Sending commands in BASIC to the ADR2000 can be done using PRINT 1 commands For example sending an RDO command could be done as shown below 20 PRINT 1 RDO Extra spaces inside the quotes are ignored by the ADR2000 Avoid sending commands on consecutive lines because a CR is not sent after the first com
9. O command converts the result to Celsius and displays the temperature on the video screen gt gt gt 5 2 2 gt gt gt gt gt gt PCS 58 5 2 2 2 238 DIGITAL I O EVENT ANALOG OUT ANALOG INPUT POWER R1 1kohm LM335 SENSOR 10 OPEN COM1 9600 N 8 1 CS DS RS AS 1 com port 20 CLS clear screen 30 LOCATE 1 1 locate cursor 40 PRINT 1 RDO send RDO command to ADR2000 50 INPUTZ1 READING retrieve data from ADR2000 60 TEMPERATURE READING 4095 5 2 73 100 convert data to Celsius 70 PRINT Temperature is TEMPERATURE display it 80 GOTO 30 repeat procedure voltage is converted to Celsius by subtracting 2 73 273K and multiplying by 100 ONTRAK CONTROL SYSTEMS INC 20 24 www ontrak net Event Counter Connections The event counter accepts both TTL and dry contact inputs TTL type inputs may be connected directly to the EC input while dry contacts must be connected between GND and the EC input Events are counted on the rising edge of the input which is when the TTL signal switches from low to high or the dry contact opens The sample program rads the dry contact input and displays the count result continuously on the video screen 10 OPEN COM1 9600 N 8 1 CS DS RS AS 1 open com port 20 CLS clear screen ADR2000 2S0soSoSoSOS 0S0S2s2s2s2S QNS
10. Spaces sent between the board address and commands are ignored Board zero will respond to both commands with no preceding address and commands preceded with a zero for reasons of continuity Never connect two boards with the same address on the same chain This will result in both boards responding at the same time and will cause contention on the network with possible damage to the ADR boards 7 Interfacing to the ADR2000 Basic Examples The following interface examples show basic examples of interfacing various devices to the ADR2000 Sample programs are written in BASIC and demonstrate proper command syntax A Reading Potentiometer Position To monitor potentiometer position the potentiometer must be biased with 5VDC The wiper of the pot is then connected to one of the analog inputs The sample BASIC program reads the potentiometer position using the RDO command which responds with a decimal value between 0000 and 4095 The value is then converted to a percent and displayed on the video screen ONTRAK CONTROL SYSTEMS INC 17 24 www ontrak net ADR2000 262929290906 090909090909 10 OPEN COM1 9600 N 8 1 CS DS RS AS 1 20 CLS 30 1 1 40 PRINT 1 RDO 50 INPUT 1 POT 60 POT POT 4095 100 70 PRINT Potentiometer Position 15 POT 80 GOTO 30 B Connecting Switches to Digital Ports lt lt 9 8 gt gt gt gt SLES B 9 2
11. T1 OPEN sdefine T1 110 T2 CLOSED IF SW2 1 THEN T2 OPEN sdefine T2 120 PRINT SW1 T1 sprint SW1 status 130 PRINT SW2 T2 sprint SW2 status 140 GOTO 60 repeat procedure C Connecting LED s to Digital Ports LED s may be controlled using the digital I O lines on the ADR2000 Only one additional component is needed to drive LED s A current limit resistor is required for each LED with a value of around 220 Ohms The LED is the turned on by resetting PAO to a logic zero or turned off by setting to a logic one The sample BASIC program demonstrates how to turn the LED on and off RPPPPRPPPPRPP OWS S Zl gt _ gt gt _ gt 52 3635 ES 06 5 o DIGITAL I O EVENT ANALOG OUT ANALOG INPUT POWER x 220 OHM LED1 10 OPEN COM1 9600 N 8 1 CS DS RS AS 1 opens com port 20 CLS clears screen 30 PRINT 1 SETPAO sets 40 REM forces lt cr gt 50 PRINT 1 CPA11111110 configures PAO as output 60 REM Turn on LED forces cr 70 PRINT 1 RESPAO turns on LED 80 REM Turn off LED forces lt cr gt 90 PRINT 1 SETPAO turns off LED 100 END PAO remains in high impedance state until the CPA command is used to configure the port as output D Driving Solid State Relays Solid State relays that require a DC voltage to operate may be driven by ADR2000 digital I O lines directly if t
12. able is J1 J1 J3 J2 HL Br id s E m rere ruo gm ADR2000 ADR2000 2 E H 001 ED m 005 ADDRESS 0093 2 ADDRESS 00 FE g g BaananannaBhnann TE ETT d BL d B d EE 0262626262606 260260260260260 6 2626202602606 262602602602606 282625080806 eeesesesoesee als 2855 2 2 2 2 z z l g 2 25 55 028 z z zz gl z B used power need only be connected to J2 on any one ADR2000 in the chain Figure 5c Typical Daisy Chain Application C Sending Commands Once a board is jumpered it will respond only to commands preceded by its address as a single digit integer number For example to read analog port 0 on board 3 the command 0 lt gt is sent To set 4 on board 7 the command 7SETPA4 cr gt is sent
13. alers If desired the DB25 connector on the supplied cable may be removed and a female DB9S connector can be soldered in its place using the following wiring diagram ADR IBM etc DB9P male 0895 female RC 3 RED 3 TX TX 7 WHITE 2 RC GND 2 BLACK 5 GND r7 RTS 8 CTS r 1 DCD 6 DSR 4 DTR Figure 2 Modified Wiring Diagram For 9 PIN SERIAL PORTS If the host computer has a female DB25 connector a male to male adapter is required to use the supplied cable This may be purchased at most computer dealers Apple Macintosh computers may be connected to the ADR2000 using MAC to DB25 DTE conversion cable Once connected to the RS232 based host computer or terminal the RS232 port should be configured to the following specifications to allow communication with the ADR2000 9600 baud 8 bit words 1 stop bit no parity If using BASIC or C consult the appropriate section in this manual for details on how to configure your serial port If a terminal or terminal emulation program is used configure your terminal to the above specifications using the operations manual for your terminal equipment or terminal emulation program ONTRAK CONTROL SYSTEMS INC 4 24 www ontrak net 1b THE ADR2000 RS485 INTERFACE The ADR2000 RS485 interface is a two wire connection meeting all the standards or the EIA RS485 interface specifications The supplied cable is NOT an RS485 cable To communic
14. ar mode 5VDC and returns 8 values in decimal format Data separator is space 20HEX returning 40 characters total Order is ANO to AN7 voltage reading 4095 X 10 5 example RB cr 3476 0023 1256 3210 1265 4095 0000 3541 3476 3 488V AN1 0023 4 934V AN2 1256 1 932V etc RBn Returns status of analog port specified by n in decimal format n 0 to 7 Input voltage range used for conversion is 5 to 5 VDC example RB3 lt CR gt 1866 AN3 0 443V Differential input commands Note The analog inputs are grouped into 4 pairs for differential measurements They are ANO and AN1 AN2 and AN3 AN4 and 5 AN6 and In differential commands n may be any number from 0 to 7 and specifies which input is to be considered the positive input for a differential measurement Ex reads the difference between ANO and AN1 with AN1 being ONTRAK CONTROL SYSTEMS INC 7 24 www ontrak net the positive input RAO reads same pair but uses ANO for the positive reference RAn Returns status of differential analog port specified by n in decimal format n 0 to 7 Input voltage range used for conversion 0 to 5VDC example lt gt 1056 convert to voltage voltage reading 4095 5 Ex Diff between ANO and AN1 is at 1056 4095 5 volts 1 2894 volts RCn Returns status of differential analog port specified by in decimal format 0 to 7 Input vol
15. ate via RS485 the host computer must have an RS485 port and be connected directly with two wires TR and TR A typical connection diagram is shown in figure 2 ADR Omega COM 485 DB9P male J1 or J3 DB9P male 5 8 TX TX 4 9 TX Figure 2 Typical RS485 Connection Note that both J1 and J3 are RS485 compatible ports Connection from the host to the ADR2000 should be made using J1 and then J3 is used to enable daisy chaining additional ADR2000 series products The host RS485 port should be configured with the following specifications to enable communications to the ADR2000 9600 Baud 8 bit words 1 stop bit no parity Line feeds should NOT be sent after commands as they may collide with data being returned from the ADR2000 2 PROVIDING POWER TO THE ADR2000 The ADR2000 may be powered using a regulated 5 volt power supply or a suitable wall adaptor Power to daisy chained ADR2000 may also be supplied via the daisy chain cable See the Daisy chaining section of this manual for further information POWER UP USING A 5 VOLT REGULATED SUPPLY If the ADR2000 is to be powered using a regulated 5 volt power supply the and GND connections are to be made to the ADR2000 via the main terminal block TB1 The supply must be able to provide a minimum of 60mA and up to 240mA if the ADR2000 is to source current from the digital outputs Care must be taken to avoid improper power s
16. ax for this command is rewind stdaux This command is executed after data is retrieved using the fscanf command For example the following commands send a RDO command and stores the retrieved data in an integer variable named ANO fprintf stdaux RDO XD fscanf stdaux 96 D amp an0 rewind stdaux In this example the command PA read port A Jis sent to the ADR2000 and the retrieved data is stored in an integer variable named PORTA fprintf stdaux PA fscanf stdaux 96D amp PORTA rewind stdaux The following test programs outline the proper syntax for using the commands in simple applications The first program retrieves the status of analog port 0 and displays the data on the video screen The second program configures PORT A as output sets the port to decimal 255 reads back the port status and displays the data on the video screen ONTRAK CONTROL SYSTEMS INC 14 24 www ontrak net PROGRAM EXAMPLE ONE ANALOG PORT TEST PROGRAM include lt stdio h gt include lt bios h gt define com1 0 define settings OxE3 main declare as an integer number int anO configure com1 9600 baud 8 bit words no parity bioscom O settings com1 send RDO command to ADR2000 com1 fprintf stdaux RDO XD read data from com1 and store it at address of anO fscanf stdaux d amp an0 initialize com1 buffer rewind stdaux print data on s
17. communication parameters which are 9600 baud 8 bit words no parity This is done using the bioscom command The syntax for this command is bioscom O settings com1 where settings is previously defined as HEX and com is defined as 0 Defining settings and com 1 should be done using define com1 0 define settings OxE3 ONTRAK CONTROL SYSTEMS INC 13 24 www ontrak net These statements should be placed immediately following your include files see programming examples The bioscom command needs only to be executed once before the ADR2000 is accessed SENDING COMMANDS TO THE ADR2000 To send commands to the ADR2000 the fprintf command is used For example the following command sends an read analog port 0 command to the ADR2000 fprintf stdaux RDO The xD suffix sends a carriage return after the command which is needed by the ADR2000 to recognize a command Integer variables may also be used in the command line For example the following command sends MAddd make port A ddd command where DOUT is a previously defined integer value of 0 to 255 fprintf stdaux MA xD DOUT RECEIVING DATA FROM THE ADR2000 If a command sent to the ADR2000 is a responsive command that is one that results in data being sent back to the host the data is retrieved using the fscanf command After this command is used the serial buffer must be re initialized using the rewind command The synt
18. creen printf ANALOG PORT 0 2 d PROGRAM EXAMPLE TWO DIGITAL PORT TEST PROGRAM include lt stdio h gt include lt bios h gt define com1 0 define settings OxE3 main declare PORTA and DOUT as integer numbers int PORTA DOUT set DOUT to integer 255 DOUT 255 configure com1 9600 baud 8 bit words no parity bioscom O settings com1 send CPA00000000 command to ADR2000 on com1 fprintf stdaux CPA00000000 xD send MAddd ddd DOUT command to ADR2000 com1 fprintf stdaux MA xD DOUT send PA command to ADR2000 on com1 fprintf stdaux PA xD read data from com1 and store at address of PORTA fscanf stdaux 96d amp PORTA initialize com1 buffer rewind stdaux print data on screen printf PORT A is d DECIMAL n PORTA ONTRAK CONTROL SYSTEMS INC 15 24 www ontrak net 6 Daisy Chain Options for the ADR2000 Daisy chaining ADR2000 series boards involves three steps A Setting Address Jumpers B Physically Connecting Boards C Sending commands A Setting Address Jumpers The ADR2000 can be daisy chained regardless of the type of serial interface provided by the host computer Each board on the chain must be assigned an address via the BCD address jumper block on the ADR2000 Up to ten boards may be daisy chained The following table shows how to jumper the address jumper block to select a board a
19. ddress Position 8 Position 4 Position 2 Position 1 Address OPEN OPEN Table 1 Address Jumper Settings B Physically Connecting Boards The ADR2000 series interface boards have two 9 connectors that allow daisy chaining The data format used in daisy chaining is RS485 regardless of the host communication type To connect boards on a chain a daisy chain cable must be constructed The cable must provide two connections for the RS485 signals A typical daisy chain cable is shown in Figure 5a DB9P male DB9P male 5 5 TX TX 4 4 TX Figure 5a Daisy chain cable Power may be shared in daisy chained ADR2000 series interfaces if two extra conductors are added to the daisy chain cable Care should be taken that the output current limitation on the power supply is not exceeded The connections for a powered daisy chain cable are shown in Figure 5B NOTE Power sharing is available only if power is applied via J2 7 15VDC ONTRAK CONTROL SYSTEMS INC 16 24 www ontrak net TX 5 TX 4 9VDC 6 GND 1 DB9P male DB9P male 5 TX 4 TX 6 9VDC 1 GND Figure 5b Powered Daisy Chain Cable The Daisy chain cable can be connected from J3 to either J1 or J3 on additional ADR2000 interfaces Both J1 and J3 have identical pinouts for RS485 and power signals used for daisy chain applications Figure 5c shows a typical daisy chain application If a Powered daisy chain c
20. ed by n in PORT A n 0 to 7 EVENT COUNTER COMMAND SUMMARY CE Clear Event Counter RE Returns present count of counter REC Returns present count of counter and clears event counter ID COMMAND IDN Returns 4 digit product identifier code ONTRAK CONTROL SYSTEMS INC 6 24 www ontrak net 3 2000 COMMANDS a ANALOG INPUT COMMANDS There are 8 analog inputs with a resolution of 12 bits on the ADR2000 labeled ANO to AN7 The analog input range is 0 to 5 VDC or 5VDC The input range is automatically selected by the command used to read a specific port Measurements may also be single ended or differential which is selected by the command used to read a specific port No jumpers need to be set and all analog inputs may have positive or negative voltages present whether they are read in unipolar or bipolar mode Single ended input commands RD Reads all eight analog inputs in unipolar mode 0 5VDC and returns 8 values in decimal format Data separator is space 20HEX returning 40 characters total Order is ANO to AN7 voltage reading 4095 X 5 example lt gt 3456 4095 1287 3212 2865 3577 1000 2321 3456 4 219V AN1 4095 5 00V 2 lt 1287 1 571V etc RDn Returns status of analog port specified by n in decimal format n 0 to 7 Input voltage range used for conversion 0 to 5VDC example RDO lt CR gt 2356 ANO 2 877V RB Reads all eight analog inputs in bipol
21. gital Port Commands 9 d Event Counter Commands 10 e ID Command 11 4 Using BASIC with ADR Products 12 5 Using TURBO C with ADR Products 13 6 Daisy Chain Options for the ADR2000 16 7 Interfacing to the ADR2000 basic examples a Reading Potentiometer Position 17 b Connecting Switches to Digital Ports 18 C Connecting LED S to Digital Ports 19 d Driving Solid State Relays 19 e Solid state Temperature Measurement 20 f Event Counter Connections 21 APPENDIX A CONNECTION DIAGRAM 22 B ELECTRICAL SPECIFICATIONS 23 C MOUNTING DIMENSIONS 24 ONTRAK CONTROL SYSTEMS INC 2 24 www ontrak net READ FIRST Thank you for purchasing this ADR2000 serial data acquisition interface There are three steps to using the ADR2000 1 Connecting your computer or terminal to the ADR2000 2 Providing power to the ADR2000 3 Sending commands to the ADR2000 This manual will provide guidance for completing these steps along with BASIC and TURBO C programming tips An applications section is also provided to describe how to interface various electronic transducers and other devices to the ADR2000 Additional applications and programming examples are available on our web page at http www ontrak net FEATURES 8 12 bit analog inputs 0 5 or 5 VDC single ended or differential measurements 2 analog outputs 0 5 VDC 12 bit VER A 10 Bit PWM VER B 16 bit contact or TTL input event counter 8 digital I O lines individually
22. he current input specification for the relay is 20mA or less The relay must be rated for the proper voltage and current required by the load Each relay requires one digital I O line to operate and requires no other external components The sample BASIC program demonstrates how the relay is turned on Note that the I O line is RESET before the CPA command is used to configure the port as output to avoid the relay turning on unexpectedly when the port is configured ONTRAK CONTROL SYSTEMS INC 19 24 www ontrak net ADR2000 929200606 2s0soS2S2SOS S Vd o S lt 95535 5 2 2 B E m o N o A OC 8 DIGITAL I O EVENT ANALOG OUT ANALOG INPUT POWER 10 COM1 9600 N 8 1 CS DS RS AS 1 opens com port 20 CLS clears screen 30 PRINT 1 RESPAO resets PAO 40 REM forces lt cr gt 50 PRINT 1 CPA11111110 configures PAO as output 60 REM Turn on relay forces lt cr gt 70 PRINT 1 SETPAO turns relay on 80 REM Turn off relay forces cr 90 PRINT 1 RESPAO turns relay off E Solid State Temperature Measurement The LM335 is a solid state temperature sensor with an input span of 40 to 100C It outputs temperature 10mV per degree Kelvin Only one external component is required to use the LM335 with the ADR2000 R1 is a 1Kohm resistor used to bias the LM335 The sample software program reads the sensor using an RD
23. mand resulting in an unrecognized command This problem arises with the configuring of a digital port and then trying to access the port immediately after it is configured A REM statement should be inserted between consecutive PRINT 1 commands as shown below 20 PRINT 1 CPA00000000 30 REM FORCES CR 40 PRINT 1 SETPAO Variable names may also be used with PRINT 1 commands One example of this shown below This program configures PORT A as output and the increments it from 0 to 255 10 OPEN COM1 9600 n 8 1 CS DS RS AS 1 20 PRINT 1 CPA00000000 30 FOR X 0 to 255 40 PRINT 1 MA X 50 NEXT X 60 END RECEIVING DATA When reading analog inputs or the digital port data is sent from the ADR2000 to the host computers serial buffer This data can be retrieved using INPUT 1 commands The INPUT 1 command should be used following PRINT 1 commands if data is expected to be sent by the ADR2000 If a single piece of data is expected then one variable name should be used with the INPUT 1 command If eight pieces of data are to be received as with the RPA command then eight variable names must be used with the INPUT 1 command Examples of both cases are shown below ONTRAK CONTROL SYSTEMS INC 12 24 www ontrak net 20 PRINT 1 RAO 30 INPUT 1 ANADAT 40 PRINT 1 RPA 50 INPUT 1 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0 The variable names used in the INPUT 1 commands now contain the data sent by the ADR2000 The data can now be scaled
24. ns are disabled they are put into high impedance state TAdddd Sets the period of PWM output A on terminal V1 dddd 0000 to 1024 0000 0 1024 100 example TA512 lt CR gt period is set to 512 1024 50 TBdddd Sets the period of PWM output B on terminal V2 dddd 0000 to 1024 0000 0 1024 100 example TB232 lt CR gt period is set to 232 1024 22 65 c DIGITAL PORT COMMANDS There is one eight bit digital port on the ADR2000 labeled PORT A The individual 1 lines are labeled PAO PA7 The following commands allow the user to configure individual bits an input or output SET or RESET individual bits read individual bits read entire port in binary or decimal format write to entire port in binary or decimal format The digital port commands are Configures each bit of PORT All eight bits must be specified Order is MSB LSB x 1 for input 0 for output example CPA11110000 lt CR gt PA6 5 PA4 are configured as inputs PA2 PA1 PAO configured as outputs SPAxxxxxxxx Outputs binary data to PORT A All eight bits must be specified Order is MSB LSB Individual bits configured as input are not effected by this command 1 or 0 example SPA10101000 CR PA7 PA5 are set PA6 4 PA2 are reset RPA Returns status of all I O lines in PORT A in binary format Order is MSB LSB Individual lines c
25. onfigured as output will return last data set on the port example lt gt CONTROL SYSTEMS INC 9 24 www ontrak net 01110010 7 2 are low PA6 5 PA4 1 are high Returns status of I O line in PORT A specified by n n 0 to 7 example RPA4 lt CR gt R is high MAddd Outputs decimal data ddd to PORT A Individual lines configured as input are not effected by this command ddd 000 to 255 example MA255 lt CR gt All lines of PORT A are set PA Returns status of PORT A in decimal format Individual lines configured as output will return last data set on PORT A example PA lt CR gt 128 PA7 is high PA6 thru PAO are low RESPAn Resets I O line specified by n in PORT A This command has no effect on I O lines configured as input 0 to 7 example RESPA4 lt CR gt PA4 is reset SETPAn Sets I O line specified by n in PORT A This command has no effect on I O lines configured as input n 0 to 7 example SETPA3 lt CR gt PA3 is set d EVENT COUNTER COMMANDS The ADR2000 is equipped with a 16 bit event counter that accepts TTL or contact input There are three commands available to read and clear the event counter If the maximum count of 65535 is reached the counter will rollover to 00000 RE Returns decimal value of event counter example RE lt CR gt 00456 Present count is 456 CE Clears event counter example C
26. programmable as input or output high current digital I O lines sink 20mA source 20mA on board RS232 to RS485 converter daisy chainable up to 10 boards daisy chainable power supply low power requirements 5 volts at 40mA power up via standard wall adapter optional simple yet versatile commands easy to use with Visual BASIC or TURBO C programs compatible with all ADR2000 series interfaces ONTRAK CONTROL SYSTEMS INC 3 24 www ontrak net 1a THE ADR2000 RS232 INTERFACE The ADR2000 communicates via a standard RS232 port utilizing a simple three wire interface The only signals used are received data RC transmitted data TX and ground GND Most RS232 ports use hardware handshaking i e DTR DSR CTS RTS signals to control the flow of data on the port For this reason the cable required to connect to the ADR101 must have jumpers on the DB25 end to satisfy these handshaking requirements IBM or compatible computers may be used as a host computer with the supplied cable The supplied cable has the following connections ADR IBM etc DB9P male DB25S female RC 3 RED 2 TX 7 WHITE 3 RC GND 2 BLACK 4 RTS 7 1 5 CTS 1 6 DSR 7 GND 8 DCD L 20 Figure 1 Supplied Cable Wiring Diagram If the host computer has a 9 pin serial port connector a 9 pin to 25 pin adapter cable will be required to connect to the ADR2000 cable This adaptor is available at most computer de
27. tage range used for conversion is 5 to 5 VDC example RC3 lt CR gt 1866 To convert to voltage voltage reading 4095 10 5 Ex Diff between AN3 and AN2 is at reading 4095 10 5 4432 volts b ANALOG OUTPUT COMMANDS The ADR2000 has two analog outputs on terminals V1 and V2 The outputs are either 12 bit 0 5VDC analog outputs Version A or 10 bit PWM outputs Version B Version A 12 bit 0 to 5VDC analog voltage outputs VAdddd Sets voltage output on Terminal V1 dddd 0000 to 4095 example VA2399 lt CR gt output voltage on V1 is set to 2399 4095 5 2 929VDC VBdddd Sets voltage output on Terminal V2 dddd 0000 to 4095 example VB3766 lt CR gt output voltage on V2 is set to 3766 4095 5 4 598VDC Version B 10 bit PWM outputs The PWM modules on Version B ADR2000 boards can operate at three fixed output frequencies Both modules must operate at the same frequency and this frequency is set by the FH FM and FL commands FH Sets frequency for PWM outputs to 9 76Khz FM Sets frequency for PWM outputs to 2 44Khz FL Sets frequency for PWM outputs to 610 Hz Note if frequency is not set default frequency is 610 Hz ONTRAK CONTROL SYSTEMS INC 8 24 www ontrak net Turns PWM output to Terminal V1 EB Turns on PWM output to Terminal V2 DA Disables PWM output on Terminal V1 V1 high impedance DB Disables PWM output on Terminal V2 V2 high impedance Note1 When PWM pi
28. upply connection as permanent damage to the ADR2000 may result if connected improperly No connection to J2 is to be made if the ADR2000 is powered by a regulated 5 volt supply POWER UP USING A WALL ADAPTOR The ADR2000 has an on board 5 volt regulator allowing the use of a 9 volt wall adaptor to power the internal circuits The regulator should be able to provide from 300 500mA 68 950 1 The regulator must have a standard 2 1mm center negative coaxial connector The connector can then be inserted into J2 on the ADR2000 When the ADR2000 is powered by a wall adaptor the on board regulator also may provide a regulated 5 volts DC out to provide power to external circuits This 5 volt supply is available on TB1 The amount of current available depends on the amount of current sourced by the digital ports For safe operation no more than 100mA should be drawn from the power terminals to power external circuits ONTRAK CONTROL SYSTEMS INC 5 24 www ontrak net ANALOG INPUT COMMAND SUMMARY RD Returns status of all 8 analog inputs in decimal format 0 5VDC Ref RB Returns status of all 8 analog inputs in decimal format 5VDC RDn Returns status of analog port specified by n in decimal format Input range 0 5VDC single ended 0to7 RBn Returns status of analog port specified by n in decimal format Input range 5VDC single ended 0 to 7 RAn Returns status of differential port specified by n in decimal format
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