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pet820 user manual

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1. RELAY COMMON RELAY NORMALLY OPEN RELAY NORMALLY CLOSED Bae 1 TO LOCAL TELEPHONES 99 9871 o s gt 5 3 s TELEPHONE CO NETWORK El2 srrs 13 E14 E15 E16 LOOP CIRCUIT 025 C23 amp LE23 24 25 E26 jorersre _E1 LOOP CIRCUIT E10 2168 LOOP CIRCUIT ZNR7 ZNR6 LOOP CIRCUIT SEE r LOOP CIRCUIT LOOP CIRCUIT DETAIL ZNRS ZNR3 LOOP CIRCUIT ZNR2 LOOP CIRCUIT 2 t3 t4 t5 to t tO 9 STATUS 17 ZNRI UQUQUQ00 LOOP CIRCUIT ARM DISARM _ _ gt AUX OUT O 3 5 MEL 2 12V E GROUND ROD 820 REV C Ns 9199 35 3 Ad3livV8 ACIFIC RESEARCH P bog 9 53 vus 23 o 3573 H3MOd 2v V DATA RAM AND REAL TIME CLOCK BATTERY POWER SWITCH INTERNAL BATTERY CO
2. Revised 10 13 92 13 14 15 16 17 18 19 20 21 2 2 23 24 25 N I Page 59 Pacific Research PET 820 User Manual PROGRAMMING TABLE Programming Command Description Command Factory Syntax LOOP CONFIGURATION Input normal state 0 LOOP DATA Select 0 to 3 0 Disable input 1 Normaly Closed 2 Normaly Open 3 Resistor Supervised LOOP CONFIGURATION Select alarm delay ZERO or NON ZERO 0 No delay 1 Alarm delay No delay LOOP CONFIGURATION Alarm relay output ZERO or NON ZERO 0 delay 1 Alarm delay No delay 33 LOOP CONFIGURATION Telephone number access 3 LOOP DATA Select 0 to 7 1 Number 1 2 Number 2 3 Number 1 and 2 4 8 Number log 5 Number and log 6 Number 2 and log 7 Number 1 2 and log LOOP CONFIGURATION Select response time 34 LOOP DATA ZERO or NON ZERO 0 Response time 1 1 time 2 time LOOP CONFIGURATION Select alarm message 5 LOOP DATA 08 15 Message buffer 00 through 15 LOOP CONFIGURATION Select monitor output 6 LOOP DATA Select 0 to 3 O No access 1 Relay output 2 Digital output 3 Both outputs LOOP CONFIGURATION PROGRAMMING TABLE mmand Programming Command Da ge arr Factory eee Description Setting a ul E Bl css a SIE S i 28 eT j s Revised 10
3. 2 CO ALARMFIAG 2 76430 8 7 O LOOP MONITOR ON OFF 764 10 16 7 OJRADIOINTERFACEENABLE 765423 0 3 7 O PULSING ALARM RELAY ENABLE 420 6 7 0 SYSTEMSTATUSENABLE Z o o O 18 TOTAL VALUE 2 SYSTEM CONFIGURATION BYTE 3 BIT NO BYTE DEFAULT DESCRIPTION ADDER 76543210 1 O SYSTEM SIGN ON MESSAGE FIRST 4 BITS 7643210 4 o sazo B O 764 10 ______ 16 7 O0 PASSWORDDISABLEFLAG O 7654510 32 ALARM MESSAGE DELAY SELECT 2 BITS ssn 1081 o TOTAL VALUE 06000000002 SYSTEM CONFIGURATION BYTE 4 BIT NO BYTE DEFAULT DESCRIPTION ADDER 76543210 1 O TELEPHONE DIRECTORY ENABLE 202 20 4 7643100 8 ____ 764 10 16 O NA 765420 32 O NA 763310 6 _____ ssa 1281 TOTAL VALUE S Page 72 Pacific Research PET 820 User Manual LOOP DEFINITION LOW BYTE BIT NO BYTE DEFAULT DESCRIPTION ADDER 764332001 1 1 1 O LOOPTYPEBO 0 DISABLE 1 NC CONTACT 763433210 ______ _______ 0 INSTANT 1 DELAY 7643310 1 8 _____ ALARM RELAY OUTPUT ENABLE 0 DISABLE 1 ENABLE 7654200 ______ 16 O MONITORTORELAYOUTPUTENABLE 765450 32 MONITORTODIGITALOUTPUTENABLE 76 230 64 LOOP RESPONSE SELECT 0
4. GALLONS GATE GAUGE OFF OHMS OIL oo GREEN GROUND HAVE HEAVY HERTZ HIGH HOLD HOUR HOURS ICE IDENTIFY N OVER PASS PERCENT PICO PLEASE PLUS POINT POSITION POWER PRESS PRESSURE PROBE PULL PUMPS PUSH RAIN RANGE READY E ele ND 0 152 INCH INFORMATION INSPECTOR INTRUDER 154 155 156 157 KILO LEFT 160 161 Page 65 Pacific Research PET 820 User Manual LOW WORD GROUP HIGH WORD GROUP HIGH WORD GROUP FEMALE VOICE WORD ADDRESS WORD ADDRESS WORD ADDRESS 016 ELECTRICIAN REPAIR TIME 017 FIELD REPEAT 018 FREEZING RIGHT 019 GREENWICH SAEE 020 GUSTING TO SECONDS 021 INCREASING SECURITY O CLOCK 022 LESS THAN SELECT ONE 023 MEAN TWO 024 MORE THAN SERVICE THREE 025 NEAR FOUR 026 NEW SLOW FIVE 027 OTHER SMOKE 028 RADIO SOUTH SEVEN 029 PASSED SPEED EIGHT 030 RATE STALL NINE 031 RELEASE START TEN 032 REAR 06 ______ ELEVEN 033 SEVERE SWITCH TWELVE 034 SIDE TELEPHONE THIRTEEN 035 TRUE 069 TEMPERATURE FOURTEEN 036 WHISKEY TERMINAL FIFTEEN 037 WIND TEST SIXTEEN 038 VICTOR SEVENTEEN _ 039 ABOUT TIME EIGHTEEN 040 ACKNOWLEDGE TIMER NINETEEN 041 APRIL TOOL TWENTY 042 THIRTY 043 AUGUST UNDER FORTY 044 AUTO FIFTY 045 AUXILIARY GOOD 046 BATTERY USE NOUN MORNING 047 BIG VALVE AFTERNOON 048 BUSY VERIFY EVENING 049 CALLING VOLTS CLEARANC
5. The integrate rate is used to filter each of the analog inputs so that a momentary large change in analog voltage will be averaged with prior readings A large integrate rate can be used to eliminate some noise and interference Each analog input can be programmed to a different rate of 1 through 8 This number is the number of prior readings of the ADC that are averaged together The output value of the integrate routine is then used by the minimum and maximum value register and the analog alarm functions COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 72 72 Input Data 72 Input Input 1 though 8 Data 1 through 8 72 1 4 Analog channel number 1 will integrate the last four readings All inputs 4 4 6 4 ENABLE ANALOG INPUT FOR ALARM OUTPUT With this command you can define which of the analog inputs will be used by the alarm function This command can also be effective in disabling an input that is currently generating an alarm allowing you to reestablish the arm mode without that input generating a new alarm COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 73 73 Input Data 73 Input Input through 8 Data Zero 0 or Non Zero 1 9 Zero disable input for alarm output 73 1 1 4 Enable input number 1 for alarm output 73 2 0 Disable input number 2 for alarm output All inputs 0 4 65 ENABLE ANALOG INPUT FOR ALARM RELAY O
6. Change the existing Unit Address to 1221 DEFAULT 0000 Page 21 Pacific Research 4 5 6 ARM DELAY PET 820 User Manual In applications where the PET 820 is used to monitor exit or entrance doors the ARM DELAY may be used to provide a delay after the unit has received an arm command This allows a person to exit a building before the unit is armed COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 16 16 Data 16 Data 000 to 255 seconds 256 through 999 is invalid data and will abort the command 16 30 Set the alarm delay for 30 seconds 15 seconds 4 5 7 COMMUNICATION DELAY BEFORE DIALING This feature allows the user to delay for a time of 2 to 255 seconds before dialing in which to abort the transmission of an alarm Note that values of 0 and 1 entered into this command will generate a minimum of 2 seconds dial delay is also used as a delay between each of the dial attempts COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 17 17 Data 17 Data 000 to 255 seconds 256 through 999 is invalid data and will abort the command 17 30 Sets the dial delay to 30 seconds 5 seconds 4 5 8 ALARM RELAY OUTPUT CUTOFF TIME On alarm conditions that operates the relay an automatic cutoff timer may be programmed to turn off the relay after the cutoff time has elapsed A 000 may be programmed for no alarm relay cutoff COMMAND CODE PROGRAM S
7. PROGRAMMING INSTRUCTIONS 40 PROGRAMMING Programming is the principle means for the user to configure with a computer based system The PET 820 s operation enables the user to tell the system what to do and how to do it This programming dose not require special tools and can be done either by telephone or by the optional keypad display panel 41 PROGRAMMING COMMAND FORMAT All programming commands have 3 parts The first part COMMAND CODE defines the function that is to be modified The second part USER DATA is the new information that replaces the previous information in that program command code memory location The third part identifies the end of a command string The works in the same manner as the ENTER key on a computer keyboard To only read back data you simply enter the command code without data and SYNTAX Command Code User Data WHERE Enter end of data string Prompts user for missing parameters or data lt gt Optional parameters or data When entering data and a mistake is noted prior to finishing the command the can be used to Clear the command and start over again The key can also be used to stop speech 42 PROGRAM AUTHORIZATION CODE Before entering the program authorization code the front panel switch for programming must be in the ON position or the PET 820 will not accept any programming commands This switch allows the user a level of security where changes to the ope
8. Select alarm delay for analog input Select ADC mode digital differential ended input Select ADC mode high low range Analog to digital converter initialization Analog scaling Engineering units Set offset values Set factorial values Set decimal point position Set decimal point round off Enable sign for analog scaled values Change speech identifier for analog scaled voltages COMMUNICATION PAGE 43 5 1 5 1 1 5 1 2 5 1 3 5 1 4 5 2 5 3 5 3 1 5 3 2 5 4 5 5 5 5 1 5 5 2 5 6 Speech communication protocol Sign on message Control and programming mode Alarm mode Dial and communication delays DTMF communication protocol Serial communication protocol Serial command mode Serial status mode Radio interface protocol Telephone company information Telephone company requirements Malfunction of equipment Serial port INSTALLATION PAGE 47 6 1 6 2 6 3 6 3 1 6 3 2 6 4 6 4 1 6 5 6 6 6 7 Planning the installation Installation considerations Mounting To wall mount To mount on concrete or mortar walls Connections Analog input connections Programming changes General system testing Calibration analog input option TROUBLESHOOTING PAGE 54 7 1 Analog input option troubleshooting Page
9. 15 programmed into this counter the PET 820 will not answer the call unless the program enable switch is on then the PET 820 will wait 15 rings before it answers the call COMMAND CODE 27 PROGRAM SYNTAX 27 Data READ BACK SYNTAX 27 WHERE Data 00 through 15 rings 00 disable EXAMPLE 27 04 Set the ring counter for 10 rings 27 00 Disables the ring counter DEFAULT 04 Rings 4 5 17 SELECT MESSAGE DELAY Once the PET 820 has finished dialing a telephone number it will delay for a pre programmed time before it begins sending the first speech message This delay is designed to allow time for the telephone company to complete the connection and for the user to answer the telephone If the PET 820 has been programmed to repeat the message several times it should not be a problem if a short delay was selected and the user missed part of the first message COMMAND CODE 28 PROGRAM SYNTAX 28 Data READ BACK SYNTAX 28 WHERE Data 0 through 3 0 No delay before alarm first message 1 Delay 5 sec before first message 2 Delay 15 sec before first message 3 Delay 30 sec before first message EXAMPLE 27 2 Delay 15 seconds before first alarm message DEFAULT 1 Delay 5 seconds Page 26 Pacific Research PET 820 User Manual 4 5 18 ALARM MESSAGE REPEAT This function allows you to define the number of times the alarm message is repeated when the PET 820 makes its telephone call COMMAND CODE 29 PROGRA
10. 45 PROGRAM SYNTAX 45 Data READ BACK SYNTAX 45 WHERE Data Zero 0 or Non Zero 1 9 0 password required EXAMPLE 45 Disables the requirement for the password DEFAULT 0 4 5 35 ENABLE PULSING ALARM RELAY OUTPUT The PET 820 may be programmed to pulse the alarm relay output upon an alarm condition COMMAND CODE 46 PROGRAM SYNTAX 46 Data READ BACK SYNTAX 46 WHERE Data Zero 0 or Non Zero 1 9 0 no pulse Non Zero pulse EXAMPLE 46 0 Set for no pulsing relay 46 1 Set for pulsing relay output DEFAULT 0 No pulsing Page 32 Pacific Research PET 820 User Manual 4 5 36 SELECT DTMF DIAL PULSE MODE This feature allows the user to select the initial mode in which a telephone is dialed In areas where DTMF dialing is not accessible dial pulse dialing may be used in order to dial telephone numbers COMMAND CODE 47 PROGRAM SYNTAX 47 Data READ BACK SYNTAX 47 WHERE Data Zero 0 or Non Zero 1 9 0 DTMF Non Zero dial pulse EXAMPLE 47 Select dial pulse mode DEFAULT 0 4 5 37 SET TIME RTC OPTION If your PET 820 has included the real time clock option the clock may be adjusted via this command When programming the current time hour and minutes must include leading zeros and A M P M must be defined If missing data or incorrect data is included the command is aborted and the current time is not adjusted COMMAND CODE 48 PROGRAM SYNTAX 48 Data READ BACK SYNTAX 4
11. This is a 8 digit number that is identified on top of the program EPROM and on the circuit board The program authorization is not required to execute this command so caution should be taken in identifying it to unqualified users the unit serial number and use of this command COMMAND CODE 81 PROGRAM SYNTAX 81 Serial No 4 5 47 CHANGE DIRECT BYTE IN EEPROM This command allows the user to change direct bytes in the EEPROM for purpose of debugging and solving certain types of problems Care should be taken in using this command because it is not necessary for normal programming operations Please refer to the EEPROM address chart located in APPENDIX D of this manual when implementing this command COMMAND CODE 82 PROGRAM SYNTAX 82 Address Data READ BACK SYNTAX 82 Address WHERE Address 3 digit value decimal Data 3 digits value decimal EXAMPLE 82001 025 Change address byte address 001 to 025 4 5 48 DEMONSTRATE SPEECH LIBRARY This command may be used for purpose of demonstrating all words in the speech library The library contains over 390 words The program authorization code is not required to execute this command COMMAND CODE 83 PROGRAM SYNTAX 83 46 ANALOG INPUT OPTION PROGRAMMING COMMANDS The programming commands for the analog option work in the same manner as the standard programming commands These commands provide two main function types First are commands that are used to configure the analog c
12. Use the following table to identify the ready indicator mode FLASH RATE DESCRIPTION None Off One or more loop circuits are set the unit is not ready to arm Steady All loop circuits are clear and the unit is ready to arm Fast flash One or more inputs are turned off but all other loop circuits are clear and the unit is ready to arm 3 2 4 ARM INDICATOR This indicates when the system is in the arm mode waiting to detect and process an alarm 3 2 5 ALARM INDICATOR This indicator is used to identify that an alarm is in process or has occurred Once the PET 820 has detected an alarm the alarm indicator will remain lit until the alarm has been reset 3 2 6 MONITOR INDICATOR This will indicate when the PET 820 s monitoring mode is on See section 3 9 6 for additional details regarding the monitor mode 3 2 7 RELAY INDICATOR This will indicate when the users programming relay is energized 3 2 8 LOW BATTERY INDICATOR This indicator signals when the battery voltage drops below 8 5 volts In this error condition the PET 820 will no longer operate If the PET 820 is being operated on 115 VAC and there is a low voltage condition this indicator will also light 3 2 9 KEYPAD TIME OUT TIMER The local keypad time out timer is used to reset the Program Authorization Code after 5 minutes of no activity This reset function is announced when it occurs EXAMPLE PA C time out The timer will also reset the command input operation if
13. WORD ADDRESS WORD ADDRESS WORD A RED i WORD ADDRESS WORD ADDRESS WORD ADDRESS mu ECRIRE RIS EE REN ui WORD WORD ADDRESS 03 Na WORD ADDRESS ind F jc RUIN SERIE 05 WORD ADDRESS WORD VR pq pem Page 68 Pacific Research PET 820 User Manual SPEECH MESSAGE BUFFER PROGRAMMING TABLE E E SPEECH WORD DATA Em WORD VR pq pem Page 69 Pacific Research PET 820 User Manual SPEECH MESSAGE BUFFER PROGRAMMING TABLE BUFFER ADDRESS SPEECH WORD DATA n pg cuc EE EE uoc WORD ADDRESS WORD ADDRESS WORD A RED i WORD ADDRESS WORD ADDRESS WORD ADDRESS mu ECRIRE RIS EE REN ui WORD WORD ADDRESS 15 NM SPARE WORD ADDRESS pax cuu ind RII RE SERIE SPARE WORD WORD ADDRESS WORD VR pq pem Page 70 Pacific Research PET 820 User Manual EEPROM PROGRAMMING DATA TABLE 00 1 40 5 150 98 HEX PROGRAM AUTHORIZATION CODE 118 76 HEX 987654 STORED IN BCD 084 54 HEX 050 32 HEX PASSWORD 321 STORED IN BCD 031 IF HEX 255 FF HEX 017 11 HEX KEY CODE 11 STORED IN BCD 255 FF HEX 255 FF HEX 012 000 00 HEX 0000 STORED IN BCD LOOP 1 DEFINITION LOW BYTE LOOP 1 DEFINITION HIGH BYTE LOOP
14. Word Data 000 through 255 reference APPENDIX C EXAMPLE Reference APPENDIX C DEFAULT MESSAGE BUFFER DATA 00 DC power is off MB 01 009 from unit 007 02 PET eight twenty MB 03 009 the time is 002 014 on 003 MB 04 Warning change machine is out of change MB 05 Smoke alert at unit 007 MB 06 Machine 007 is off line MB 07 Danger area temperature is below freezing MB 08 Zone 006 alert at unit 007 MB 09 Intruder alert intruder alert at zone 006 MB 10 Hire alert fire alert 11 Warning high level 12 Danger low pressure error 13 2 Warning over temperature error 14 Danger over pressure error MB 15 Warning power is Message Buffer Speech Command Word Page 25 Pacific Research PET 820 User Manual 4 5 15 SELECT SIGN ON MESSAGE The sign on message is the message that is sent when the user calls the PET 820 and establishes telephone communication Any one of the 16 speech buffers may be assigned as the sign on message COMMAND CODE 26 PROGRAM SYNTAX 26 Data READ BACK SYNTAX 26 WHERE Data 00 through 15 EXAMPLE 26 06 Sets message buffer 6 as the sign on message DEFAULT Message buffer 02 Message buffer 03 when RAM RTC option has been installed 4 5 16 SET RING COUNTER The ring counter value determines the number of rings before the PET 820 will answer the telephone If a value of 00
15. analog alarm limit 4096 Select input through 8 Sign Zero neg Non Zero pos Limit Data 0000 through 4096 ADC value disabled 72 ADC OPTION Set input integrate rate 72 INPUT Data 1 through 8 DATA Readings ADC OPTION Enable input to trigger alarm 73 INPUT Select input 1 8 Data Zero disable Non Zero enable DATA Disable 70 Select input 1 8 Data Zero disable Non Zero enable DATA ADC OPTION Telephone number access 75 INPUT Select 0 to 7 DATA None 1 Number 1 2 Number 2 3 Number 1 and 2 4 8 Number log 5 Number 1 and log 6 Number 2 and log 7 Number 1 2 and log 76 ADC OPTION Select analog alarm message 76 INPUT now Select input 1 8 Data 00 15 message buffer DATA Message 77 ADC OPTION Select alarm delay for analog alarm 77 INPUT 4 0 74 ADC OPTION Enable input to trigger alarm relay output 74 INPUT 0 1 0 Select input 1 8 Data Zero no delay Non Zero delay DATA No delay 0 1 ADC OPTION Select single differential ended input 78 DATA Data Zero single Non Zero diff er ADC OPTION Set analog high low range DOE Select input 1 8 Data Zero low Non Zero high High range 11 1 System EEPROM Initialization This command does not 81 SER NO None require Password of Program Authorization Code 0 Change direct byte in EEPROM 82 ADDRESS N A Address and data require 3 di
16. circuit alarm condition has been detected the program checks to determine which telephone number to call in association to that input The PET 820 may be programmed to call 1 2 both eight number telephone log or all 10 telephone numbers if desired The eight number telephone log is only active when the optional RAM RTC option has been installed COMMAND CODE 33 PROGRAM SYNTAX 33 Loop Data READ BACK SYNTAX 33 Loop WHERE Loop through 8 this identifies the loop for change Data 0 through 7 0 no alarm output to telephone 1 dial telephone 1 2 dial telephone 2 3 dial telephone 1 and 2 4 dial telephone number from eight number log 5 dial telephone 1 and eight number log 6 dial telephone 2 and eight number log 7 dial telephone 1 2 and eight number log EXAMPLE 33 15 Loop circuit 1 will dial telephone 1 and log 33 2 1 Loop circuit 2 will dial telephone 1 33 3 7 Loop circuit will dial all telephone numbers DEFAULT loops 1 28 Pacific Research PET 820 User Manual 4 5 23 CHANGE LOOP CONFIGURATION SELECT RESPONSE TIME Each loop circuit can be programmed to use one of two different response times The response time is used to ignore a momentary change in contact closure that is undesirable It is recommended that no less than 40 milliseconds response time is used In an applications where an unwanted contact closure may occur for one to two seconds and you do not wan
17. in 40 millisecond increments The fastest response time of 40 milliseconds with a data value of 001 and up to 10 2 seconds with a data value of 255 A data value larger than 255 will abort the command COMMAND CODE 10 Loop response timer 1 11 Loop response timer 2 PROGRAM SYNTAX Command Code Data READ BACK SYNTAX Command Code WHERE Command Code 10 or 11 Data 001 through 255 in 40 milliseconds increments EXAMPLE 10131 Sets loop response timer 1 for 5 24 seconds 11 025 Sets loop response timer 2 for 1 0 seconds DEFAULT Loop Response timer 1 001 40 milliseconds Loop Response timer 2 025 1 sec Page 20 Pacific Research PET 820 User Manual 4 5 2 CHANGE PROGRAM AUTHORIZATION CODE Changing the PROGRAM AUTHORIZATION CODE consist of the command code value 12 followed by the new program authorization code 1 to 6 digits Any amount of digits may be used within the range of 1 to 6 Each digit with a value of 0 through 9 The default authorization code 987654 can be changed Once this code is changed the default code will no longer work COMMAND CODE 12 PROGRAM SYNTAX 12 Data READ BACK SYNTAX 12 WHERE Data 1 through 6 digits each digit may be a value of 0 through 9 EXAMPLE 12 123321 Changes the existing authorization code to 123321 DEFAULT 987654 4 5 3 CHANGE OPERATE KEY CODE Changing the OPERATE KEY CODE consist of the command code value 13 followed by the new key code of 1 t
18. occur because of an error in sending the Password or the system Password was accidentally changed In order to get toa known Password the system EEPROM will need to be re initialized see programming command code 81 When initializing the EEPROM all prior changes to the system characteristic will be lost The connection to the telephone line may be to the wrong terminals reference the installation section of manual Make sure that the status LED is flashing red during ringing if not then check the telephone connections Make sure that the program switch is on and wait for a minimum of 16 rings Once the unit has answered then check the ring counter value program command code 27 and reset to a desired value One of the inputs may be turned off or improperly configured check there status operate command code 04 Also check there configuration programming command codes 30 through 36 This may occur due to the message assignments or bad data in the RAM First check the messages and their assignments programming command codes 24 through 26 If the message data is bad you can reset to the factory default data by using programming code 80 Unit responds to false Re evaluate the loop response timer values and the type sensor that are connected to each loop alarms you may try to increases the loop response time in order to ignore unwanted contact closures 71 ANALOG INPUT OPTION TROUBLESHOOTING This section provides procedu
19. pacres com LIMITS AND EXCLUSION There is no other expressed warranty except as listed above PACIFIC RESEARCH is not liable for indirect incidental or consequential damages in connection with the use of this product including but not limited to any cost or expense of providing substitute equipment or services during period of malfunction or non use and or any destruction to and or loss of property or bodily injury This warranty gives you specific legal rights and you may have other rights which vary from state to state Page 57 Pacific Research PET 820 User Manual OPERATE COMMAND TABLE En Code Syntax LT REM See programming table for default values See programming table for default values 00 End telephone communication 01 Arm Disarm system 01 KEY CODE DATA Data 0 Disarm 1 Arm None Toggle 02 Read back loop circuit status 02 KEY CODE lt LOOP gt Loop 1 through 8 Read Back last alarm status 03 KEY CODE Date and time is included if RAM RTC has been installed Turn loop ON OFF for alarm output 04 KEY CODE LOOP DATA Loop through 8 Data Zero Off Non Zero On Monitor mode ON OFF 05 KEY CODE lt DATA gt Data Zero Off Non Zero On N A N A et Relay and digital output control 09 KEY CODE R D DATA R D 0 Relay 1 Digital Data Zero Off Non Zero On ADC OPTION Read ADC input value directly 62 INPUT Inpu
20. the analog option to meet your needs We recommend that you review all pertinent sections of this manual to get familiar with the analog option and its basic operation Page 5 Pacific Research PET 820 User Manual SYSTEM DESCRIPTION 1 0 SYSTEM OVERVIEW The PET 820 system is shipped from the factory ready for use It comes pre programmed with factory basic default settings that fit most all applications The system can be re programmed from a standard telephone or the optional keypad display in order to meet a variety of needs All loop circuit alarm characteristics and communication parameters are programmable for most any applications that may occur The PET 820 comes standard with 8 dry contact inputs loop circuits one relay output and one digital output The relay output is completely programmable as to both alarm and or control functions 1 1 FACTORY DEFAULT SETTINGS AND PROGRAMMABLE PARAMETERS No special tools are required for programming and control of the PET 820 A simple connection to a standard telephone line is all that is required to communicate with the PET 820 system Before attempting to program with new characteristics review the programming tables provided at the end of the manual If any of the default settings described in this table do not meet your installation requirements you can easily change these settings using a touch tone telephone or the optional keypad display panel 1 2 PROGRAMMING LOOP CIRCUIT CONFIGURA
21. this time 3 Turn the power switch off The switch is located behind terminal 20 21 and 22 4 If 12VDC operation is intended make sure the power switch is off and connect the positive battery terminal to the PET 820 terminal 23 and the negative battery terminal to PET 820 terminal 24 5 Connect the telephone line loop circuits and relay contacts as required per your installation planning 6 Verify that the program enable switch right of the power switch is off 7 Connect AC power or plug in three prong line cord 8 Turn on the power switch Page 48 Pacific Research PET 820 User Manual 6 4 1 ANALOG INPUT CONNECTIONS The following section outlines connections that are importation to the analog option If your unit dose not contain this option skip to section 6 5 The maximum voltage that to be applied to any one of the analog inputs should not exceed 5 50 volts Make sure that the your voltage source can not go beyond these limits Refer to figure 6 2 for additional information on connections 1 Turn off the power switch 2 Connect analog signal to their appropriate input channels 3 Connect all un used analog inputs to ground The ground terminals 2 5 8 and 11 4 Make sure that all analog signals that you have connected can not swing beyond 5 50 volts 5 Turn on the power switch and you are now ready to use the analog input option 65 PROGRAMMING CHANGES Using your installation planning and the tab
22. 0 also provides a pause or wait character for the purpose of waiting for a second dial tone when using a PBX or some long distance carriers This wait is only 3 4 of a second and in some application you may require 3 or 4 waits in order to produce a longer pause If that is the case just string them together 9 9 9 Each special character occupies the same room as a standard digit and may be programmed into any position of the telephone number COMMAND CODE 22 Telephone number 1 23 Telephone number 2 PROGRAM SYNTAX Command code Data READ BACK SYNTAX Command code WHERE Data Telephone number through 32 digits each digit 0 through 9 and the following special characters 4 or clear 6 or enter 7 dial Pulse select 8 touch Tone select 9 Wait or pause 750 mS Enter end of string EXAMPLE 225555555 Telephone number 555 5555 22 9 9 7145551234 Telephone number 9 Wait 750mS 714 555 1234 DEFAULT No telephone numbers stored 4 5 12 1 CONFIGURE FOR PAGER ACCESS Most paging systems require you to dial a telephone number and send a pager ID or access number Operating the PET 820 within this format can be accomplished by separating the telephone number and the pager access number with one or more pauses Test your paging system by measuring the time delay from the end of the telephone number to when the paging system requires the access number You may want to add one additional pause to assure tha
23. 03 Page 64 Pacific Research ADDRESS 060 090 o 006 0 0099 100 16 CYCLE Er M ut DANGER pays io ABORT gt gt Nx 4 lt 2 2 lt SE 2 5 ADJUST AIR ALERT ALL AMPS gt Z g ANSWER gt gt gt AUTOMATIC BASE BELOW BREAK BUTTON CALIBRATE CALL CANCEL CAUTION CELSIUS CENTER CHANGE CHECK CIRCUIT CLEAR CLOCK CLOSED COMPLETE CONNECT CONTACT CONTROL 091 _ CURRENT oc c PET 820 User Manual WORD LEVEL LIGHT LINE LIST LONG LOW LOWER MACHINE MANUAL MEASURE MEGA METER MICRO MILLI 1150 24 MINUS 176 MINUTES MODERATE 178 MOTOR MOVE NEGATIVE NORTH 182 NOT NUMBER 186 187 18000 89000 19020 1220 14000 19 198 1900 LOW WORD GROUP WORD ADDRESS DIRECTION 113 DISPLAY 114 DOOR DOWN EAST EMERGENCY ENGINE ENTER EQUAL ERROR EVACUATE EXIT FAIL FAHRENHEIT FAST FEET FINAL FIRE FLOW FOR FREQUENCY FROM 116 118 S m m m m m m tA 45 5 45 45 p gt S NIN oleo 00 2 N ON oo N
24. 13 92 Page 60 Pacific Research PET 820 User Manual _ PROGRAMMING TABLE Syntax Setting Set telephone number into eight number log RAM option 37 POS DATA None Select log position 1 through 8 Telephone number 1 to 32 digit Delete number from eight number log Ram option Select log position 1 through 8 Set day of week RTC option 39 DATA Current Select 1 to 7 1 Sunday 2 Monday 3 Tuesday Day 4 Wednesday 5 Thrusday 6 Friday 7 Satderday Select 0 to 3 0 1 DTMF 2 Speech 4 Modem Speech Select 0 to 3 0 1 DTMF 2 Speech 4 Modem pee ZERO or NON ZERO 0 Telephone 1 Radio Pt Enable local ARM DISARM control ZERO or NON ZERO 0 Disable 1 Enable Enable Enable loop input 8 ARM DISARM control BE ZERO or NON ZERO 0 1 Enable Disable Disable PassWord requirement e es 3 ZERO or NON ZERO 0 PW Required 1 PW Disable Required Enable pulsing alarm relay output ZERO NON ZERO 0 pulsing 1 Pulsing No pulsing Set telephone dial mode DTMF Dial Pulse ee ZERO or NON ZERO 0 DTMF 1 Dial Pulse DTMF Data format HH MM A P 0 AM 1 PM Time Date format MM DD YY ree Serial port baud rate Select 1 to 6 1 300 2 600 3 1200 4 2400 5 4800 6 9600 um ZERO NON ZERO 0 1 Enable ANALOG SCALING Set ADC offset values EL E gt cA Selec
25. 2 Pacific Research PET 820 User Manual COMMUNICATION 5 0 COMMUNICATION The PET 820 is equipped with the latest technology in digital speech synthesis capable of reporting a different alarm condition for each loop circuit The PET 820 can dial up to ten different 32 digit telephone numbers using either rotary dial pulse or touch tone dialing Multiple PET 820s can be connected to a single telephone line or twisted pair of wires The access to only one of the units is then done by issuing the designated unit s Password It should be noted that telephone and ringing voltages are not required in order to operate the unit This section includes a detailed description of the communication programmable features and operations Reference SECTION 4 0 and APPENDIX B for a full listing of the communication programming commands 51 SPEECH COMMUNICATION PROTOCOL The PET 820 s speech synthesizer is the principal means for the PET 820 to communicate with the user This communication occurs during the command mode programming mode and alarm mode In the command and programming mode speech is used to respond to the data input sent by the user In the alarm mode speech is used to identify the source of the alarm The following is a brief description of what you should expect when communicating with the PET 820 5 1 1 SIGN ON MESSAGE After the PET 820 has counted the pre programmed number of rings it will pick up the receiver Off Hook and respond w
26. 2 Dial telephone 2 3 Dial both telephone 4 dial telephone number from eight number log 5 dial telephone 1 and eight number log 6 dial telephone 2 and eight number log 7 dial telephone 1 2 and eight number log EXAMPLE 75 15 Loop circuit 1 will dial telephone 1 and log 75 2 1 Loop circuit 2 will dial telephone 1 DEFAULT All inputs 1 4 6 7 SELECT ANALOG ALARM MESSAGE Once an alarm has occurred and the PET 820 has established telephone communication with the user the PET 820 will read back of 16 different messages The message that is read back corresponds to the message number that has been programmed for that analog input Each of the 8 analog inputs may be programmed to read back anyone of the 16 different messages COMMAND CODE 76 PROGRAM SYNTAX 76 Input Data READ BACK SYNTAX 76 Input WHERE Input through 8 this identifies the input for change Data 00 through 15 identifies the message buffer to speak during an alarm communication EXAMPLE 762 03 Analog input number 2 will speak message buffer 03 during an alarm DEFAULT All inputs 00 4 6 8 SELECT ALARM DELAY FOR ANALOG INPUT Once the PET 820 has detected an alarm condition at an analog input the system will begin to initiate the alarm mode A giving input can include an alarm delay in order to allow the user to turn off the alarm prior to that alarm condition being stored permanently and communication being established When no
27. 2 DEFINITION LOW BYTE LOOP 2 DEFINITION HIGH BYTE LOOP 3 DEFINITION LOW BYTE LOOP 3 DEFINITION HIGH BYTE LOOP 4 DEFINITION LOW BYTE 23 LOOP 4 DEFINITION HIGH BYTE LOOP 5 DEFINITION LOW BYTE 025 LOOP 5 DEFINITION HIGH BYTE LOOP 6 DEFINITION LOW BYTE 27 LOOP 6 DEFINITION HIGH BYTE LOOP 7 DEFINITION LOW BYTE 029 LOOP 7 DEFINITION HIGH BYTE LOOP 8 DEFINITION LOW BYTE 031 LOOP 8 DEFINITION HIGH BYTE PASSWORD ERROR COUNTER LOW NIBBLE 071 086 001 050 049 201 158 186 000 000 SPEECH MESSAGE BUFFER 1 000 000 000 000 000 000 000 000 DC POWER IS OFF 087 102 001 009 014 134 240 007 000 000 SPEECH MESSAGE BUFFER 2 000 000 000 000 000 000 000 000 009 FROM UNIT 007 000 00 HEX END OF SPEECH BUFFER 0 SERIAL CONFIGURATION BYTE 9600 BAUD 0 8 3 ALARM MESSAGE COUNT 255 11111111B SYSTEM CONFIGURATION BYTE 4 107 127 ALL 255 FF HEX UNUSED Page 71 Pacific Research PET 820 User Manual SYSTEM CONFIGURATION BYTE 1 BIT NO BYTE DEFAULT DESCRIPTION ADDRESS 76433201 1 1 1 0 NEWEEPROMFLAG 20 4 0 LOOP8EXTERNAL ARM DISARM 7643201 1 8 O ENABLEDIALPULSEE 7634300 16 O PROGRAM COMMUNICATION SELECT 2 BITS 7654530 3 765432101 64 O ALARM COMMUNICATION SELECT 2 BITS TOTAL VALUE 196002 SYSTEM CONFIGURATION BYTE 2 BIT NO BYTE DEFAULT DESCRIPTION ADDER 1 0OJARMDISARM 764210
28. 20 allows for delays before going OFF HOOK dialing a telephone number and begins communication of the alarm message These delays are designed to allow time for disabling the PET 820 dial tone telephone network connection and ringing Each of these delays are programmable reference SECTION 4 0 for more information on programming these parameters 52 DTMF COMMUNICATION PROTOCOL The DTMF protocol was designed for use with the Remote Control Panel details of this protocol are listed in the User Manual for this unit For more information on the Remote Control Panel you should contact your local dealer or Pacific Research 5 3 SERIAL COMMUNICATION PROTOCOL If the PET 820 includes the optional RS 232 serial port you can connect the system to a terminal or printer to be used in configuring COMPUTER 820 the system or monitor status information 0 09 50 DBOS PIN For additional information on connecting the serial port refer to figure 5 1 The serial port connector uses the same pin assignment standards as a PC using a GROUND standard serial printer cable should be adequate in most all applications If you plan on building your own cable note that for most all application the only connections that are required are TX Data RX Data and Ground O TX DATA RX DATA FIGURE 5 1 Page 44 Pacific Research PET 820 User Manual 5 3 1 SERIAL COMMAND MODE The serial command mode operat
29. 3 Pacific Research PET 820 User Manual 9 0 GLOSSARY AND WARRANTY PAGE 57 10 0 OPERATE COMMAND TABLE PAGE 58 110 PROGRAMMING COMMAND TABLE PAGE 59 12 0 SYSTEM SPEECH LIBRARY PAGE 64 13 0 MISCELLANEOUS INFORMATION PAGE 71 Page 4 Pacific Research PET 820 User Manual INTRODUCTION The PET 820 Personal Electronic Technician represents the latest technological advances in the remote monitoring industry The PET 820 utilizes a microprocessor design combining all control and communication electronics on a single printed circuit board This type of design enables the PET 820 to deliver superior and competitive performance All program options are stored in a NON VOLATILE EEPROM Electrically Erasable Programmable Read Only Memory which maintains its data even with the power disconnected This EEPROM may be re programmed by the user in order to change the system characteristics with no additional equipment required for programming PET s microprocessor and power supply is constantly monitored by a WATCHDOG TIMER which maintains the operational integrity of the system The PET
30. 8 WHERE Data Format HH MM A P HH Hours MM Minutes 0 A M 1 P M EXAMPLE 48 11 30 1 Sets the time to 11 30 P M 48 02 59 0 Sets the time to 2 59 A M DEFAULT Current time 4 5 38 SET DATE RTC OPTION If your PET 820 has included the real time clock option the date may be adjusted via this command When programming the current date month day and year must include leading zeros If missing data or incorrect data is included the command is aborted and the current date is not adjusted The RAM RTC option will announce the date with day of the week and month as a word not a number for day of the week command refer to code 39 COMMAND CODE 49 READ BACK SYNTAX 49 PROGRAM SYNTAX 49 Data WHERE Data Format MM DD YY MM Month DD Day YY Year EXAMPLE 49 12 12 90 Set the date to the 12th month 12th day year of 90 49 03 04 91 Sets the calendar to the 3rd month 4th day year of 91 3 5 92 will be announced as Thursday March Sth 92 DEFAULT Current date Page 33 Pacific Research PET 820 User Manual 4 5 39 SERIAL PORT BAUD RATE If your PET 820 has included a serial port you may use this command to select the desired baud rate Once the command is issued the baud is instantly changed COMMAND CODE 50 PROGRAM SYNTAX 50 Data READ BACK SYNTAX 50 WHERE Data through 6 1 300 baud 2 600 baud 3 1200 baud 4 2400 baud 5 4800 baud 6 9600 baud EXAMPLE 50 3 Set t
31. 820 is easy to set up and use We recommend that you read sections 1 and 2 of this manual first to get familiar with the system and its basic operation The other sections of this manual provide a thorough explanation of the PET 820 s many Features Available to the PET 820 are many other optional features The operation of these features have been included in this manual and may not pertain to your application Some of these options and their features are listed below 1 RAM RTC Random Access Memory Real Time Clock This option is used to enhance the features and performance of the PET 820 These features include date and time stamp of alarms increased programmable speech buffers and a larger telephone number list This option is also required with the Analog Input option 2 BATTERY The battery option will provide operating power for the PET 820 for up to 8 hours without external power 3 KEYPAD DISPLAY This option gives the user the freedom to operate the PET 820 at the unit without a telephone line connected 4 ANALOG INPUT With this option the PET 820 can be used to monitor analog voltages for alarm conditions The eight channel analog input option uses a plus and minus twelve bit integrating type converter Although this type of converter is somewhat slow approx 30 conversions per second it has excellent accuracy and noise immunity There are various items that are programmable for this option These items will allow you to customize
32. E 0 through 9 00 through 99 or 00 through XX 000 through 255 Zero 0 or non zero 1 through 9 for ON OFF or Enable Disable functions 44 EXAMPLE OF PROGRAMMING As an example of programming we will review changing the systems password After you establish communication with the PET 820 you must first execute the current password and program authorization code Now you are ready to change the password by sending 14 28774 the first 14 is the change password command code next 28774 is the new password data This can be any value from 0 through 9 and any number of digits from to 6 and the last item is the end of a string or enter key If the command was correctly entered and data correctly updated the PET 820 will read back the new password data Now if you only send 14 command code and enter the PET 820 will respond with the current password data 45 PROGRAM COMMANDS The following sections will detail each of the program command codes to show syntax examples and the default data values The programming commands for the Analog option have been separated and will follow at the end of this section for better clarification 4 5 1 SET LOOP RESPONSE TIME The loop response time is used to denounce each of the loop circuit inputs A large response can be used to eliminate some noise and interference Each of the loop circuits can be programmed for either one of two loop response times Each of the response times are programmed
33. E WAIT CODE WARNING COME WATTS CRANE WEATHER DATE WEST DAY WRONG DECEMBER 090 YELLOW DIALING DIVIDED ZONE PAUSE time ESTIMATED FEBRUARY a FRIDAY 0 FRONT GEAR STOP e Page 66 Pacific Research PET 820 User Manual HIGH WORD GROUP HIGH WORD GROUP HIGH WORD GROUP WORD GOOD BYE 09 SATURDAY SEPTEMBER SHORT SUNDAY SYSTEM THIS THURSDAY 139 TODAY TOMORROW TONIGHT TRANSMIT TUESDAY 13 UNTIL me 14 MESSAGES 15 WEDNESDAY MOBILE 116 117 WELCOME MONTH 118 NET 1 19 YESTERDAY NOVEMBER SEYMOUR WASTE 2 6 8 0 ADDRESS SOUND 132 133 134 135 136 137 WORD UTILITY Baldwinsville Batavia Burlington Cooper Crescent Ellenburg Fairport False Finchville Intake Lewiston Money Point Oneida Overlook Plattsburg Switchyard Talcottville Transition Wellsite Wilson 2 2 41 42 43 44 47 49 151 152 153 154 155 156 157 158 159 160 161 162 PATCH WATER POLICE TREATMENT PRIORITY PLANT 7 9 ALARM CONDITION EXIST SEWAGE gt oo ON tA oo Page 67 ADDRESS Pacific Research PET 820 User Manual SPEECH MESSAGE BUFFER PROGRAMMING TABLE BUFFER ADDRESS SPEECH WORD DATA ET sssi EE uoc
34. ET DECIMAL POINT POSITION The decimal point position is used to convert the scaled integer value to a decimal value When the PET 820 multiplies the ADC and factorial values the result is returned as an integer To convert this integer to a decimal value you must define the decimal point position This is done by counting the total number of digits right of the decimal point that were used in the ADC and factorial values For more detailed information on this procedure please refer to section 4 6 12 2 Set Factorial Values COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 58 58 Input Data 58 Input Input through 8 Data 0 through 7 58 1 4 Set the decimal point position 4 digits to the left ADC offset 0345 0 345 decimal point position 3 Factorial 0255 25 5 decimal point position 1 Then 0345 X 0255 87975 with a decimal point position of 4 the result would be 8 7975 All inputs 6 Page 41 Pacific Research 4 6 12 4 PET 820 User Manual SET DECIMAL POINT ROUND OFF The decimal point round off is used to define the number of digits right of the decimal point that will be used when reading the scaled analog units COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 4 6 12 5 59 59 Input Data 59 Input Input through 8 Data 0 through 7 59 1 2 Set the decimal point value to round off input 1 two positi
35. M SYNTAX 29 READ BACK SYNTAX 29 WHERE EXAMPLE DEFAULT Data 00 through 15 00 disables messages 2 08 The alarm message will repeat 8 times 10 message repeats 4 5 19 CHANGE LOOP CONFIGURATION SELECT ACTIVE STATE Each of the 8 loop circuits can be assigned 1 of 4 normal active states A loop that has been assigned 0 disabled will be completely ignored in all applications including monitoring function If the loop is assigned normally open or normally closed as the condition then no additional external components are required in the loop for proper operation If a loop is assigned as a resistor supervised loop then a 2 2K ohm resistor is required in series with the loop Reference the installation section of this manual for additional information on connecting the PET 820 to different loop circuit conditions COMMAND CODE 30 PROGRAM SYNTAX 30 Loop Data READ BACK SYNTAX 30 Loop WHERE Loop through 8 this identifies the loop for change Data 0 through 3 0 Disable loop 1 Normally closed loop 2 Normally open loop 3 Resistor supervised loop EXAMPLE 30 1 1 Sets loop circuit 1 for a normally closed contact DEFAULT All loops 2 normally open contact 4 5 20 CHANGE LOOP CONFIGURATION SELECT ALARM DELAY Once the PET 820 has detected a change in input activity the system will begin to initiate the alarm function An input can include an alarm delay to allow the user to turn off the alarm pri
36. NNECTOR PROGRAM ENABLE SWITCH KEYPAD DISPLAY CONNECTOR 2 2K OHM RESISTOR RESISTOR SUPERVISED NORMALY OPEN NORMALY CLOSED LOOP CIRCUIT DETAIL FIGURE 6 1 Page 51 Pacific Research PET 820 User Manual HIGH RANGE ADJUST Ces z g 1111 J1 ADJUST J2 222200009902 4 5 EG E7 EO El 12 08 RS 232 PORT SINGLE ENDED INPUT CONNECTIONS NOTE ALL INPUT SIGNALS MUST BE WITHIN 5 50 VOLTS OF GROUND 22220000 EL L2 t3 L4 Lo 6 E9 LO ETL E12 SIG HI u SIG HI CHANNEL 1 SIG LO SIG LO CHANNEL 4 GND GND SIG HI SIG HI CHANNEL 2 SIG LO SIG LO CHANNEL 3 GND GND DIFFERENTIAL INPUT CONNECTIONS NOTE ALL INPUT SIGNALS MUST BE WITHIN 5 50 VOLTS OF GROUND FIGURE 6 2 Page 52 Pacific Research PET 820 User Manual TO TELEPHONE WIRING TO TELEPHONE NETWORK 1 INCOMMING PHONE LINE pR USER PHONES USOC RJ38X MINIATURE POSITION SE
37. PACIFIC RESEARCH PET 820 REMOTE MONITORING AND CONTROL USER MANUAL This manual contains information proprietary to Pacific Research and is provided for the operation and maintenance of the equipment described This manual is not to be reproduced or used for any other purpose without written authorization Revised 05 01 99 Pacific Research PET 820 User Manual TABLE OF CONTENTS 1 0 2 0 3 0 1 1 Factory default settings and programming parameters 1 2 Programming loop circuit configurations 1 3 Control and Programming 1 4 RAM and Real Time Clock option 1 5 Analog option 2 1 Unpacking the PET 820 2 2 Start up procedure 2 2 1 Analog input option startup procedure 2 3 Establishing communication 2 4 Operate procedure 2 5 Programming procedure 3 1 Printed Circuit Board indicators 3 2 Keypad Display panel optional 3 2 1 Power indicator 3 2 2 Communicate indicator 3 2 3 Ready indicator 3 2 4 Arm indicator 3 2 5 Alarm indicator 3 2 6 Monitor indicator 3 2 7 Relay indicator 3 2 8 Low Battery indicator 3 2 9 Keypad time out timer 3 3 Operating command format 3 4 Telemetry read back 3 5 Password 3 6 Key Code 3 7 Valid data types 3 8 Operating command code examples 3 9 Operating command codes 3 9 1 End communication 3 9 2 Arm Disarm 3 9 3 Read back loop circuit status 3 9 4 Read back alarm status 3 9 5 Loop circuit ON OFF 3 9 6 Loop monitor ON OFF 3 9 7 Reserved for future use 3 9 8 Reser
38. RESPONSE 1 1 RESPONSE TOTAL VALUE 190402 LOOP DEFINITION HIGH BYTE BIT NO BYTE DEFAULT DESCRIPTION ADDER 76543210 1 O ALARM MESSAGE SELECT FIRST 4 BITS 764210 2 0 08 15 08 LOOP CIRCUIT 1 sso 4 o 764320 1 8 8l 765450 32 2 76 330 64 8 ssa 020840000 Page 73
39. RIES JACK SHORTING BAR SHORT REMOVED ON PINS 1 4 AND 5 8 WHEN PLUG IS INSTALLED MINIATURE 8 8 POSITION PLUG IG PET 820 0 2 GRAY 15 BROWN 2 5 RED 15 GREEN 3 AND 6 ARE ARE R RV FOR CONNECT TO LOOP CIRCUIT ee nee TO SUPERVISE CONNECTOR FIGURE 6 3 820 J4 STATUS 1 0 sv 1 2 12V DISPLAY DATA OUT 3 4 KEYPAD DATA IN RADIO COS DATA CLOCK 5 6 DATA LATCH RADIO DIGITAL GROUND RADIO GROUND RECEIVE AUDIO 9 TRANSMIT AUDIO FIGURE 6 4 Page 53 PET 820 User Manual TROUBLESHOOTING Pacific Research 7 0 STANDARD TROUBLESHOOTING This section provides procedures to solve some common problems that may occur with the PET 820 PROBLEM SOLUTION Operate LED flashing Unit answer Dose not except the Password Unit detect ring tries to answer and then communication is lost Unit dose not answer Unit dose not respond to an alarm input Alarm or sign on message confusing or incorrect The program is not running this will occur because of low AC line voltage or low battery voltage the PET 820 should operate down to 90 Volts AC If the unit has adequate voltage there may be some type of hardware failure The unit is not recognizing the Password that is being sent this can
40. T FACTORIAL VALUES A factorial value is a positive integer that is multiplied with the ADC value in order to setup a volts per scaled unit You then use the decimal point position command in order to create a decimal value of this integer The equation that is performed in software is ADC VALUE ADC OS FACT RESULT THEN DECIMAL ADJUST ADC Analog to Digital Converter value OS OFFSET FACT FACTORIAL As an example if the transducer that you had connected to the analog board had an output of 2 500 volts which represented 300 0 scaled units and assuming that 0 0 volts represented 0 0 scaled units We would normally multiply the 2 500 volts by 120 in order to get 300 0 scaled units With the PET 820 you must first convert your analog voltage to the correct ADC count in this case 2500 and multiply that value by 1200 which is the same as 120 0 The result will be an integer of 3 000 000 or 300 0000 if the decimal point was 4 places to the left Now to place your decimal point in the proper position you count the total number of digits right of the decimal point that were used in the original values In this case 2 500 used 3 and 120 0 used 1 for a total of 4 which is programmed at the next command code decimal point position If you had chosen a factorial value of 0120 than a value of 3 would have been programmed for the decimal point position except this would have left one less digit right of the decimal point in your result The f
41. TIONS The PET 820 has 8 loop input circuits that can be defined as normally open contact normally closed contact or a resistor supervised contact Each of the inputs defined as resistor supervised contacts may be wired with a combination of normally open and normally closed devices Loop circuit 8 may also be re programmed to accept a momentary switch closure for ARM DISARM control Refer to the programming section of the manual for more information on this subject Use the programming table in APPENDIX B to provide additional assistance in planning the loop circuit and system configuration 1 3 CONTROL AND PROGRAMMING The PET 820 implements three levels of security The first level is a Password When communication is established with the PET 820 via a telephone the user must enter a Password in order to continue with operation or programming The second level of security is the Key code The key code is used in conjunction with some command codes to provide additional security when operating the PET 820 The third level of security is the Program Authorization Code PAC This code is required in order to change or alter any of the configuration data Without the Password and Program Authorization Code none of the systems parameters may be altered The PET 820 provide one additional level of security for the programming mode This is a program enable switch that is located in the main circuit board When this switch is in the OFF position the user
42. The following sections will detail each of the operating command codes to show syntax and examples of data values 3 9 1 END COMMUNICATION This command is used to terminate the communication with the PET 820 It will also reset the password and or program authorization mode so that the user is not required to reset those functions prior to issuing an end communication command If you wish not to issue an end communication command you can hang up the phone and after a 3 minute period of no communication commands the PET 820 will disconnect itself If the end communication command is issued the disconnection will be identified with the message Good bye telephone call complete COMMAND CODE 00 COMMAND SYNTAX 00 EXAMPLE 00 Ends communication READ BACK Good bye telephone call complete end communication Telephone call timed out no communication for 3 minutes Page 14 Pacific Research PET 820 User Manual 3 9 2 ARM DISARM This command is used to arm and disarm the PET 820 Once an alarm occurs and the PET 820 has called a pre programmed telephone number the user must issue the disarm command in order to stop the PET 820 from issuing the alarm status and re calling the telephone number again To arm the PET 820 all inputs must be in the normal or clear condition If the input is not in a clear condition when the arm command is issued the PET 820 will identify the error The error must be corrected or the input must be turned o
43. UTPUT Each of the analog inputs can be configured in a manner to energize the alarm relay once the alarm has been detected This feature may be used to operate a siren or flashing lamp to identify the alarm condition Note that the alarm relay is also shared with the monitoring and relay output control function Anyone of these other functions can also effect the operation of the relay COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 74 74 Input Data 74 Input Input through 8 Data Zero 0 or Non Zero 1 9 Zero disable input for alarm relay output 74 1 1 Enable input number 1 for alarm relay output 74 2 0 Disable input number 2 for alarm relay output All inputs 0 Page 37 Pacific Research PET 820 User Manual 4 6 6 SELECT TELEPHONE NUMBER ACCESS FOR EACH ANALOG INPUT ALARM Once an analog input alarm condition has been detected the program checks to determine which telephone number to call in association to that alarm The PET 820 may be programmed to call telephone 1 2 both eight number telephone log or all 10 telephone numbers if desired The eight number telephone log is only active when the optional RAM RTC option has been installed COMMAND CODE 75 PROGRAM SYNTAX 75 Input Data READ BACK SYNTAX 75 Input WHERE Input through 8 this identifies the input to change Data 0 through 7 0 No alarm output to telephone 1 Dial telephone 1
44. X jack to determine if the problem is with the telephone network or with the PET 820 If a problem is found with the PET 820 leave it disconnected until repaired or replaced Page 46 Pacific Research PET 820 User Manual EQUIPMENT INSTALLATION 6 0 INSTALLATION The PET 820 was designed for wall mount installation The enclosure is water resistance and provides conduit connections for the wiring This section will detail all necessary connection and mounting precautions 61 PLANNING THE INSTALLATION The first step in the installation is planning the job Programming can be minimized by analyzing the job requirements and comparing these with the factory default settings Use APPENDIX B to aide in the system design Use this guide to decide what characteristics you want for each loop circuit and how the overall system shall respond Before making connections draw a rough sketch of the individual circuits and how they may operate 6 2 INSTALLATION CONSIDERATIONS Avoid installing the PET 820 in the following places Doing so may result in malfunction or noise to the system 1 In direct sunlight and hot cold or humid places The temperature range should be from 32 degrees Fahrenheit to 110 degrees Fahrenheit 2 Sulfuric gases produced in areas where there are thermal springs etc may damage the equipment or contacts 3 Places in which shock or vibration are frequent or strong 4 Near high frequency electronic welders 37 Near
45. YNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 18 18 Data 18 Data 000 to 255 minutes 000 will disable the alarm relay cutoff function 256 through 999 is invalid data and will abort the command 18 30 The alarm relay will turn off after 30 minutes 30 minutes 4 5 9 ALARM DELAY Once an alarm condition has occurred the alarm delay time may be programmed in order to allow the user adequate time to locally disarm the unit The unit will not attempt to establish communication or operate the relay until the alarm delay has timed out COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 19 19 Data 19 Data 000 to 255 seconds 000 will disable the alarm relay cutoff function 256 through 999 is invalid data and will abort the command 19 45 Sets the alarm delay to 45 seconds 15 seconds Page 22 Pacific Research PET 820 User Manual 4 5 10 PASSWORD ATTEMPT ERRORS When communication has been established a counter will keep track of the number of times an incorrect password has been sent If the counter value exceeds the maximum allowed errors programmed the PET 820 will hang up and require the user to re establish communication This setting can be used to limit unauthorized access of the system COMMAND CODE 20 PROGRAM SYNTAX 20 Data READ BACK SYNTAX 20 WHERE Data 00 through 15 00 will disable the password error attempt counter EXAMPLE 20 03 Sets the p
46. age WORD ADDRESS 000 Each message buffer is only 16 words long but if longer messages are required then you can string message buffers together by not using an end of message command word until the last buffer WORD SPEECH COMMAND WORD ADDRESS END OF MESSAGE 000 750 mS PAUSE 001 SPEAK TIME HH MM AM PM 002 SPEAK DATE MM DD YY 003 1 SPEAK BCD DATA SUPPRESS LEADING ZERO HTM 004 1 SPEAK HEX DATA NEXT BYTE START POSITION 005 SPEAK ALARM STATUS LOOP NUMBER 006 SPEAK SYSTEM ADDRESS 007 1 SPEAK FROM INT RAM 4 WORDS MAX SP BUFF 008 GOOD MORNING AFTERNOON EVENING 009 N A 010 SPEAK ALARM STATUS ANALOG VOLTAGE 011 N A 012 NULL WORD USE TO CLEAR WORD OR FILL SPACE 013 SELECT SPEECH LIB LOW WORD GROUP 014 SELECT SPEECH LIB HIGH WORD GROUP 015 1 These speech command words are typically used by the program and serve no practical use for user programmable speech LOW WORD GROUP LOW WORD GROUP WORD ADDRESS ZERO 016 017 018 019 020 021 022 023 024 025 026 027 NINETY 028 044 0600 029 030 031 z lt Z C o 2 m W FIVE IX SEVEN EIGHT NINE n 4 m 2 THIRTEEN FOURTEEN FIFTEEN WORD ADDRESS ZERO 016 ONE 1017 Two 9 THREE 019 FOR 0002 EVE 01 SIX 02 SEVEN 023 EIGHT 024 NINE 05 O TEN o ELEVEN 027 TWELVE 028 THIRTEEN 09 FOURTEEN 030 FIFTEEN
47. alarm delay has been selected and once the system has detected an alarm condition the alarm is immediately recorded and communication will then begin COMMAND CODE 77 PROGRAM SYNTAX 77 Input Data READ BACK SYNTAX 77 Input WHERE Input through 8 this identifies the input for change Data Zero 0 or Non Zero 1 9 Zero No alarm delay instant Non Zero Enables alarm delay EXAMPLE 77 3 1 Enable analog input 3 for alarm delay DEFAULT inputs 0 Page 38 Pacific Research PET 820 User Manual 4 6 9 SELECT ADC MODE SINGLE DIFFERENTIAL ENDED INPUT This feature allows the analog inputs to be used in a differential mode Keep in mind that neither of the high or low input signals should exceed 5 50 volts in reference to ground Refer to Figure 5 1 in this manual for information on connecting signals for the differential mode At this point we advise not to use the differential mode because it has not been completely tested This mode will be tested and updated prior to the next software release COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 78 78 Data 78 Data Zero or non zero Zero Single ended mode Non Zero Differential mode 78 1 Select differential ended input mode 0 Single ended 4 6 10 SELECT ADC MODE HIGH LOW RANGE This feature allows you to select a voltage range to use for all input of the analog option The high range is 4 095 vol
48. answer the call with a sign on message P E T Eight Twenty or the Time and Date if the real time clock option has been included Before you can continue further you must now enter the password The default password is 60321 the read back telemetry should then say Pass O K You now are ready to send control commands to the PET 820 Refer to paragraph 2 4 for continued operation If the keypad display option included with your PET 820 you will immediately be ready to send control commands without entering a password You should continue to section 2 4 of the manual If the PET 820 is connected to the simulated telephone test circuit as described in APPENDIX D of the manual Then in order to establish communication in this configuration pick up the telephone receiver that is connected to the simulated interface and enter the password 603214 PET 820 should then respond with the sign on message PET Eight Twenty or the time and date if the real time clock option has been included Once this communication has been established you may continue with section 2 4 of this manual Page 9 Pacific Research PET 820 User Manual 2 4 OPERATE PROCEDURE Rather than using examples of all commands you will only ARM the PET 820 This is done by issuing the command code 01 the default key code 11 the data which will be 1 for arm and 01 11 1 The read back telemetry will say ON You may now disconnect the communication by sending 00 th
49. are clear and the unit is ready to arm Green Fast flash One or more inputs are turned off but all other loop circuits are clear and the unit is ready to arm Grn Red Slow flash Unit is in ARM delay mode user exit delay Red Slow flash Unit is in ARM mode Red Fast flash Unit is in ALARM mode Red Steady Unit is in communication mode off hook 32 KEYPAD DISPLAY PANEL OPTIONAL The keypad display can offer additional operating and programming flexibility It also provides for a local voice telemetry and detail display of system status All aspects of the keypad display are identical to operating the unit by telephone except that the system password is not required 3 2 1 POWER INDICATOR This indicates the correct operation of the PET 820 The PET 820 includes hardware which will monitor this operating integrity of the software and hardware When a failure is detected the monitor hardware will attempt to restart the PET s program If the program cannot be restarted successfully this indicator will go out 3 2 2 COMMUNICATE INDICATOR This indicator has two functions First it will identify when the PET 820 is off hook connected to the telephone line Second it will indicate when an incoming call is ringing the PET 820 In the ringing mode the indicator will flash once for each ring Page 11 Pacific Research PET 820 User Manual 3 23 READY INDICATOR This indicator is used to identify the condition of the loop circuit inputs
50. assword error attempt to 3 DEFAULT 2 Attempts 4 5 11 COMMUNICATION DIAL ATTEMPTS The communication dial attempt value determines the number of times the PET 820 will attempt to dial the preprogrammed telephone number before giving up Each time all programmed telephone numbers are tried the dial attempt counter will be reduce by 1 This means that if two or more telephone numbers are programmed and the desired attempts for each number is 5 then a value of 5 must be programmed COMMAND CODE 21 PROGRAM SYNTAX 21 Data READ BACK SYNTAX 21 WHERE Data 00 through 15 00 disables the dialer EXAMPLE 21 03 Sets the dial counter to 3 attempts DEFAULT 8 Attempts Page 23 Pacific Research PET 820 User Manual 4 5 12 CHANGE TELEPHONE NUMBER The PET 820 is capable of dialing a 32 digit telephone number This number can also include special characters for the purpose of waiting for a second dial tone switching to dial pulse or touch tone at any point in the number being dialed In order to provide a method of programming these special characters the PET 820 requires that a double enter is used to identify the end of the string Note that the telephone number programming commands are the only commands that use the double enter When programming pulse tone select use command code 46 to define the initial start condition for dial pulse or tone dialing After the first digit use 7 or 8 to change the mode of dialing The PET 82
51. ations that will communicate with the remote control panel COMMAND CODE 40 PROGRAM SYNTAX 40 Data READ BACK SYNTAX 40 WHERE Data 0 through 3 0 None 1 DTMF 2 Speech 3 Modem EXAMPLE 40 2 Communicates using speech DEFAULT 2 4 5 30 PROGRAMMING AND CONTROL COMMUNICATION This feature allows the user to define what type of communications will be used during the programming and control modes of the system DTMF communication should only be selected in applications that will communicate with the remote control panel COMMAND CODE 41 PROGRAM SYNTAX 41 Data READ BACK SYNTAX 41 WHERE Data 0 through 3 0 None 1 DTMF 2 Speech 3 Modem EXAMPLE 41 2 Communicates using speech DEFAULT 2 4 5 31 RADIO INTERFACE ENABLE When this feature is selected it enables a protocol to allow the system to communicate via a two way radio Reference the installation section of this manual for more information on interfacing with a two way radio In most applications where telephone interface is desired this function should be disabled COMMAND CODE 42 PROGRAM SYNTAX 42 Data READ BACK SYNTAX 42 WHERE Data Zero 0 or Non Zero 1 9 0 Telephone interface EXAMPLE 42 0 Enables the telephone interface DEFAULT 0 Page 31 Pacific Research PET 820 User Manual 4 5 32 LOCAL ARM DISARM CONTROL This feature allows the user to add a local ARM DISARM switch for arm and disarm control Reference the
52. e nothing more then the PET 820 a screw driver some wire and a keypad display panel or telephone communication via central office telephone lines or a PBX You may also need an adjustable voltage source 0 to 1 5 volts minimum if your unit has the ANALOG option The following steps will take you through hook up operation and limited programming of the system 21 UNPACKING THE PET 820 Inspect the carton for the following contents and if any of these items are missing or damaged notify your PET 820 dealer immediately PET 820 user manual PET 820 Miscellaneous hardware package Three prong line cord with liquid tight strain relief NaS 22 START UP PROCEDURE The following is a start up procedure for the PET 820 Default password key code and Program Authorization Code are used in the examples Refer to figure 6 1 for detailed hook up diagram of the PET 820 1 Remove the 2 screws from the lower terminal cover of the PET 820 then remove the cover 2 If your PET 820 includes the battery option connecting the AC power at this time is not necessary With power turned off the left hand switch next to terminals 20 21 and 22 connect the three prong line cord black to terminal 20 white to terminal 21 and green to terminal 22 as shown in figure 6 1 It is very important to re check this connection before applying power to the unit You can check the connection by turning off the power switch and plugging in the cord With a standard AC
53. e read back telemetry will say Good by Telephone Call Complete At this point the system is now armed and ready to use Before continuing we suggest that you re establish communication via the method that was pre described and issue the disarm command 01 11 0 as described in the operate section of this manual Unfortunately at this point you have not programmed a telephone number or other pertinent information in order for the PET 820 to respond to an alarm properly 2 5 PROGRAMMING PROCEDURE Reestablish communication with the PET 820 as described in paragraph 2 3 Once the password has been sent you are ready to access programming you must enter the program authorization code the default program authorization code is 61 987654 If the PET 820 responds with P A C switch is off this means that the circuit board programming switch is currently in the off position Without disconnecting or turning off power change the circuit board programming switch the right hand switch located next to terminal 23 to the ON position and re issue the program authorization code The PET 820 should then respond with P A C O K you are now ready to change the operating characteristics of the PET 820 The first item that you will attempt to do is programming a telephone number this will enable the PET 820 to call with an alarm message Using program command code 22 you enter 22 telephone number and The PET 820 should then read back the telephone number
54. e transducer may range from 0 to 1 00 volt indicating 0 to 200 0 PSI By properly setting the factorial decimal point position round off point and identifier the PET 820 will now read this value as Zero point Zero P S I through Two hundred point zero P S I The following commands in this sub section may be used to set up engineering units to fit your application Page 39 Pacific Research 4 6 12 1 PET 820 User Manual SET OFFSET VALUES This command may be used to add or subtract a value or voltage from the analog to digital converter in order to set a zero point for your scaled reading We recommend that when setting this value you establish an analog input voltage that represents a zero value within your scale Using command code 63 to read the current analog voltage add or subtract an equal value from this reading to set a zero value the offset will only effect command code 67 the scaled value When programming the offset you may use any ADC value in millivolts or 100 microvolt depending on the analog scale selected COMMAND CODE 56 PROGRAM SYNTAX 56 Input Sign Data READ BACK SYNTAX 56 Input WHERE Input 1 through 8 Sign Zero or Non Zero Zero negative subtract Non Zero positive add Data 0000 through 4095 the analog converter value EXAMPLE 56 1 0 2000 Subtract 2000 from the ADC value input 1 2 000 volts or 0 2000 volts depending on the range selected DEFAULT inputs 0000 4 6 12 2 SE
55. elephone system for dialing This is a method where the hook switch is pulsed on and off These pulses are then counted by the telephone to determine the telephone number being dialed DISABLED Turned off or not active DTMF Dual Tone Multi Frequency Used by telephone systems for dialing also referred to as Touch Tone EEPROM A special type of non volatile memory that retains its programming information without power ENABLED Turned on or active ENTER Identifies the end of a string of digits for entry of information INITIALIZE To set up the minimum data requirement for the system INTEGRATE A method of filtering an analog voltage where a quick change on the input of the integrator results in a slower change on its output KEY CODE A programmable code that is used with a command code to provide security of the command codes LOOP CIRCUIT A circuit that may have normally open or normally closed or a combination of both types of contacts that identify a failure or change in the operating status of the equipment or process in which you wish to monitor LOOP RESPONSE TIME The amount of time that a loop circuit has to remain violated in order to cause an alarm NEXT DATA Information that is used to program or change the operating characteristics of the system OFF HOOK When telephone receiver is picked up or removed from the hook switch this is termed as off hook ON HOOK When telephone receiver is hung up or returned to the ho
56. ephone number 555 5555 37 39 9 714555 1234 Telephone log position 3 telephone number 9 wait 750mS telephone number 714 555 1234 DEFAULT No telephone numbers stored 4 5 27 DELETE TELEPHONE NUMBER FROM LOG This command is used to delete a telephone number that has been programmed into the EIGHT NUMBER TELEPHONE LOG The PET 820 looks at each position in the log to determine valid telephone data from dialing Once a position in the log has been programmed with a telephone number the only way to remove that number from the log is to delete it However a telephone number dose not have to be deleted in order to change it COMMAND CODE 38 PROGRAM SYNTAX 38 Log position READ BACK SYNTAX 38 WHERE Log position through 8 telephone log position EXAMPLE 38 2 Delete telephone number from log position 2 Page 30 Pacific Research PET 820 User Manual 4 5 28 SET DAY OF WEEK RTC OPTION If your PET 820 has included the Real Time Clock option the day of week can be adjusted using this command COMMAND CODE 39 PROGRAM SYNTAX 39 Data READ BACK SYNTAX 39 WHERE Data through 7 1 Sunday 2 Monday 3 Tuesday 4 Wednesday 5 Thursday 6 Friday 7 Saturday EXAMPLE 39 3 Set the day for Tuesday DEFAULT Current day 4 5 29 ALARM COMMUNICATION This feature allows the user to define what type of communications will be used during the alarm condition DTMF communication should only be selected in applic
57. er Operated Switch COS signals to operate a standard 2 WAY radio Instead of a telephone ring signal the user is required to send the Password in order to gain access into the system When this protocol is selected do not connect to a telephone line except to make changes in programming if required The PET 820 is not set up to communicate over both telephone and radio at one time But you can still use the telephone communication for programming when the radio is not in use The main difference is that when an alarm is detected the unit will not try to sent the alarm via the telephone but only the radio However when the telephone mode is selected the PET 820 will operate the PTT any time there is a speech message to send For additional information on wiring this feature refer to figure 6 4 The PTT and COS input output are both 5 volt logic levels The PTT goes high 5 volt out when the PET 820 wants to key the radio transmitter this output is capable of driving 1 mA load The COS is active 5 volt in when a signal is present on the radio receiver The COS signal is only required when you don t want the PET 820 to transmit when the radio receiver has detected an active signal 5 5 TELEPHONE COMPANY INFORMATION In compliance with the requirements of Part 68 of the FCC Rules and Regulations for connection of a terminal system this device is classified as terminal system to the telephone network and for your convenience the following informatio
58. erate properly The purpose of the key code is to maintain a second level of security for system access Like the password the key code is also programmable and may be changed at any time DEFAULT KEY CODE 11 Page 13 Pacific Research PET 820 User Manual 3 7 VALID DATA TYPES Most all operating command codes only require values of zero 0 through 9 or Zero 0 and Non Zero values In some commands where the data is optional or when the data is left off either a read back of the command data occurs or a toggle of the function occurs Example toggle from ON to OFF or from OFF to ON DATA TYPE EXAMPLES 0 through 9 Zero 0 or Non Zero 1 through 9 which is used for ON OFF or ENABLE DISABLE functions 38 OPERATING COMMAND CODE EXAMPLES The most likely used command code will probably be ARM DISARM As an example of this command send the password then arm the system by sending 01 11 1 The first 01 is the ARM DISARM command code the next item 11 is the key code the third item 1 is the data which identifies that you want to arm the system and the last item is the end of string or enter key If the command was correctly entered and executed the PET 820 will read back the new current condition ON If you only wanted to interrogate the current arm condition you would send 01 11 command code key code and enter key and the PET 820 would respond with it s current condition ON or OFF 3 9 OPERATE COMMAND CODES
59. es much in the same manner as the Touch Tone command mode when entering data Refer to sections 3 and 4 for detailed operations When a terminal is first connected to the PET 820 the system in not in the command mode To enter into the command mode use C Control C To exit the command mode use the Escape key When the command mode is entered the PET 820 will return with a sign on message and a prompt to enter a command serial command use a two digit number the same as used for the Touch Tone commands The main difference is that you only enter the two digit command and the PET 820 will prompt you for data The serial command mode will also respond to two letters commands Rather than detailing each of these commands if you enter the command HP Help The PET 820 will list all of the two letter command and there descriptions 5 3 2 SERIAL STATUS MODE The serial status mode when enabled by command 55 will set the PET 820 to output status information with date and time This information can be used the determine the internal operation of the system This information can be valuable for monitoring system operation and debugging When the serial command mode is enabled the status mode will temporarily disable Once the command mode is ended the status mode will re enable 54 RADIO INTERFACE PROTOCOL The radio interface works in the same manner as the telephone interface except that the PET 820 provides for a Push To Talk PTT and Carri
60. essor TOGGLE To change state turns on if off or turns off if on TOUCH TONE Used by telephone systems for dialing a telephone number Page 56 Pacific Research PET 820 User Manual LIMITED WARRANTY PACIFIC RESEARCH will repair this product with new or rebuilt parts free of charge in the United States for a period of 1 year from the date of the original purchase in the event of a defect in the material or workmanship This warranty is extended only to the original purchaser A purchase receipt or other proof of date of original purchase will be required before warranty performance is rendered This warranty only covers failures due to defects in materials or workmanship which occurs during normal use It does not cover damage which occurs in shipment or failures which are caused by products not supplied by PACIFIC RESEARCH or failures which result from an accident misuse abuse neglect mishandling misapplication alteration faulty installation modification or serviced by anyone other than PACIFIC RESEARCH or authorized service centers of PACIFIC RESEARCH or damage that is attributed to ACTS OF GOD If a problem with the product develops during the warranty period you may contact your dealer If the problem is not handled to your satisfaction you may contact us in writing at PACIFIC RESEARCH 3050 Estepa Dr Cameron Park CA 95682 Customer Service Dept Tel 916 672 9053 Fax 916 672 8749 email pacres pacres com fttp www
61. ff in order to arm the PET 820 When using the Arm Disarm command the ON OFF Zero Non Zero information is not required If it is not used an arm condition will change to disarm or the disarm condition will change to arm The analog input alarm mode is armed and disarmed in conjunction with the standard digital input alarm mode Once an analog alarm occurs the PET 820 will not respond to the digital inputs and the analog alarm itself will respond in the same manner as it does for the digital input If you wish to only operate the PET 820 using analog alarms you will need to disable all unused digital input reference the programming command code 30 for this operation COMMAND CODE 01 COMMAND SYNTAX 01 key Code lt ON OFF gt READ BACK SYNTAX 01 WHERE Key Code reference current key code ON OFF Zero 0 or Non Zero 1 9 EXAMPLE 01111 Turns the Arm mode ON 01 11 4 Toggle the Arm from ON to OFF condition 01 Read back the current Arm condition 3 9 3 READ BACK LOOP STATUS This command may be used to interrogate each of the input loop circuits current status or the current status of all input loops circuits The read back dialogue will indicate Set if a loop circuit is a non normal condition The dialogue for a normal loop circuit condition will be Clear When using this command if you leave out the loop information all 8 loops will be interrogated COMMAND CODE 02 COMMAND SYNTAX 02 Key Code Loop WHERE Ke
62. ge you will need to reset this feature using programming command code 66 COMMAND CODE SYNTAX WHERE EXAMPLE 64 64 Input Input through 8 64 1 Read analog high value input channel number 1 64 3 Read analog high value input channel number 3 Page 17 Pacific Research PET 820 User Manual 3 9 14 READ ANALOG LOW MINIMUM VALUE This command reads the minimum analog voltage which occurred since the last time it was reset The minimum voltage will also include the time and date at which it occurred This feature monitors all analog inputs at all times so when you are ready to start recording the minimum voltage you will need to reset this feature using programming command code 66 COMMAND CODE SYNTAX WHERE EXAMPLE 65 65 Input Input through 8 65 Read analog low value input channel number 1 65 8 Read analog low value input channel number 8 3 9 15 READ ANALOG SCALED VALUE This command may be used to read a scaled value of an analog input This feature can be useful for reading an analog voltage as PSI FEET TEMPERATURE Etc For more information on setting up the scaling for an analog input refer to section 4 6 12 of this manual COMMAND CODE SYNTAX WHERE EXAMPLE 67 67 Input Input through 8 67 1 Read scaled analog value input channel number 1 67 4 Read scaled analog value input channel number 4 Page 18 Pacific Research PET 820 User Manual
63. git values DATA Demonstrate all words in speech library ADC OPTION Initialization ADC 84 SER NO Revised 12 14 94 81 82 83 84 Page 62 Pacific Research PET 820 User Manual ADC OPTION PROGRAMMING TABLE a Code Description 1 2 3 4 5 6 7 8 Setting NALOG SCALING 0000 De ofan __ ALOG SCALIN 1000 Clicr ai _ NALOG SCALING nal pont postin _ LI NALOG SCALING 3 ecimal point round off value NALOG SCALING NON 245 g gt gt gt gt 2 gt D gt gt m nable sign for analog scaled values NALOG SCALING Speech identifier for scaled values Select single differential ended input Set analog high low range Revised 10 13 92 gt 70 71 72 73 74 75 76 77 78 9 7 Page 63 Pacific Research PET 820 User Manual SPEECH LIBRARY If your application requires words that are not listed in this manual additional words and custom words are available from the factory Please contact the factory for more information on supplemental words The following include a full list of all words that are currently supplied with the PET 820 and a Speech Message Buffer Programming Tables have been provided to assist you in setting up the system messages When setting up a message buffer the message should start with a 750 mS pause WORD ADDRESS 001 however this pause is not required The message buffer must always end with a End of Mess
64. inish mounting the PET 820 using the lower two holes on the left and right side of the terminal compartment 6 4 CONNECTIONS There are six 1 2 conduit knockouts three on the bottom and three on the back provided in the PET 820 enclosure Before punching out these knockouts you should remove the front panel and circuit board or boards from the enclosure as not to damage them The main circuit board will rotate out of the enclosure without force Make sure the enclosure is on a flat and solid surface Using a punch and hammer tap on the inside edges of the knockout plug until it is removed Once this is done the circuit board and panel may be replaced When connecting conduit to the PET 820 enclosure use only U L LISTED or recognized conduit hubs that have a minimum of NEMA 12 type rating same as the enclosure Conduit hubs must be connected to the conduit before being connected to the enclosure Refer to figure 6 1 for additional information on connections 1 Attach an earth ground wire minimum 18 gauge to the PET 820 terminal 22 Although a ground terminal is provided on the three prong line cord a direct connection to a ground rod is preferred Do not use conduit gas or water pipe A good earth is required in order for transient protection to be effective 2 Direct wire or connect the three prong line cord white wire NEUTRAL to terminals 21 and the black wire LINE to terminal 20 do not plug in the line cord or connect AC power at
65. installation section of this manual for additional information on wiring of the local ARM DISARM switch When this function is enabled a momentary contact closure or change in contact status will arm or disarm the system COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 43 43 Data 43 Data Zero 0 Non Zero 1 9 0 disable front panel control 43 0 Disable local ARM DISARM control 1 4 5 33 ENABLE LOOP 8 ARM DISARM CONTROL Loop circuit 8 may be redefined as an ARM DISARM control When this function is enabled a momentary contact closure or change in contact status will arm or disarm the system If this feature is enabled the PET 820 will output a signal to the digital output terminal similar to the front panel status indicator This output may then be connected to a LED or a small lamp in order to indicate the PET 820 s status COMMAND CODE 44 PROGRAM SYNTAX 44 Data READ BACK SYNTAX 44 WHERE Data Zero 0 or Non Zero 1 9 0 Disable loop 8 control EXAMPLE 44 1 Enable loop circuit 8 control DEFAULT 0 4 5 34 DISABLE PASSWORD REQUIREMENT This function allows the user to disable the password requirement for controlling and programming However it does not defeat the ability to activate the system by sending a password It only effects the requirement of a password during an alarm condition or when the PET 820 has answered the telephone via ringing COMMAND CODE
66. ith the appropriate pre programmed message P E T eight twenty or if RAM RTC option has been installed the message will be Good Morning afternoon evening the time is current time on current date These messages are programmable reference SECTION 4 0 for more information on changing this message 5 1 2 CONTROL AND PROGRAMMING MODE When the proper command is sent for controlling and programming the PET 820 a voice response referred as READ BACK in this manual of the current or most recently changed date will occur When the format or data within a command is incorrect the PET 820 will not respond this was done as not to encourage unauthorized use of the system Reference SECTIONS 3 0 and 4 0 for more information on the READ BACK format 5 1 3 ALARM MODE Once the PET 820 has been armed and an alarm condition occurs the PET 820 will go OFF HOOK and dial the preprogrammed telephone number When the dialing is finished there will be a pause before the first message is sent The PET 820 will repeat this message for the preprogrammed number of times before it gives up and hangs up the phone This delay and message repeat should allow the user enough time to identify the message and disarm the unit All of the parameters and messages described here in are programmable reference SECTION 4 0 for more information on programming these parameters Page 43 Pacific Research PET 820 User Manual 5 1 4 DIAL AND COMMUNICATION DELAYS The PET 8
67. les in APPENDIX B Establish contact with the PET 820 send the password and program authorization code By using the programming tables located in APPENDIX B go through each of the items that require changes and make them accordingly 6 6 GENERAL SYSTEM TESTING 1 Once programming has been completed re establish communication with the PET 820 and arm the system If an error message occurs the message will identify the loop circuit in which the error occurs Trouble shoot your connections in order to delete the error Re arm the PET 820 and end communication with the PET 820 2 Force an alarm condition by shorting or opening the appropriate loop circuit as required to simulate an alarm condition 3 Check for the end result of the alarm whether it has been a telephone that has been dialed or relay contact that closes Either way confirm that the system responded according to your programming plans Page 49 Pacific Research PET 820 User Manual 6 7 CALIBRATION ANALOG INPUT OPTION Calibration adjustments to the analog input option are done via the two potentiometers located on the analog board reference Figure 6 2 for information on the location of these two adjustments In order to make these adjustments you will need a precision voltage source or an adjustable voltage source and a volt meter with a minimum of 4 1 2 digits of resolution First we will check and adjust the low range then repeat the same procedure for the high ra
68. n is presented The telephone company may make changes to it s communication facilities equipment operations or procedures where such action is reasonable and required in it s business and is not consistent with the rules and regulations in FCC Part 68 of the FCC Rules and Regulations If such change can be expected to render the PET 820 incompatible with the telephone company facilities the telephone company shall give it s customers adequate notice to make modifications to maintain uninterrupted service Page 45 Pacific Research PET 820 User Manual 5 5 1 TELEPHONE COMPANY REQUIREMENTS All connections to the telephone network must be made through standard plugs and standard telephone company jacks or equivalent in such a manner as to allow for easy and immediate disconnection of the terminal equipment If the PET 820 is unplugged from the jack this should not interrupt any other equipment still connected to the telephone network Before connecting the PET 820 to the telephone network the telephone company must be notified for the installation of an Universal Service Order Code USOC RJ38X jack See figure 6 3 for correct wiring of the RJ38X jack The FCC prohibits customer provided terminal equipment to be connected to party lines or to be used in conjunction with coin telephone service 5 5 2 MALFUNCTION OF EQUIPMENT In the unlikely event that the PET 820 should ever fail to operate properly it should be disconnected from the RJ38
69. nclude special characters for the purpose of waiting for a second dial tone switching to dial pulse or touch tone at any point in the number being dialed To provide a method of programming these special characters the PET 820 requires that a double enter is used to identify the end of the string Note that the telephone number programming commands the only commands that use the double enter When programming the initial pulse tone select use command code 46 to define this start condition After the first digit then use 7 or 8 to change the mode of dialing The PET 820 also provides a pause or wait character for the purpose of waiting for a second dial tone when using a PBX or some long distance carriers This wait is only 3 4 of a second and in some applications you may require 3 or 4 waits in order to produce a longer pause in this case just string them together 9 9 9 Each special character occupies the same room as a standard digit and may be programmed into any position except for the last position of the telephone number COMMAND CODE 37 PROGRAM SYNTAX 37 Log position Data READ BACK SYNTAX 37 Log position WHERE Log position Telephone log number through 8 Data Telephone number 1 through 31 digits each digit 0 through 9 4 or clear 6 or enter 7 dial pulse select 8 touch tone select 9 wait or pause 750 mS enter end of string EXAMPLE 371 5555555 Telephone log position 1 tel
70. ndow will generate an alarm in the same manner as the digital switch input alarm These commands are used to set up the upper and lower voltage limits that will not generate an alarm condition Once these limits are set for a given channel and that channel is enabled to generate an alarm If a voltage exceeds this upper or lower limit the unit will initiate an alarm in the same manner as it does for the digital switch input alarm When programming these limits you may use any value positive or negative as either limit The data used is the ADC value in millivolts or 100 microvolts depending on the analog scale selected Setting the setpoint to a value larger than 4095 will cause that limit to be ignored by the program COMMAND CODE 70 Upper limit 71 Lower limit PROGRAM SYNTAX Command code Input Sign Data READ BACK SYNTAX Command code Input WHERE Input 1 through 8 Sign Zero or Non Zero Zero negative Non Zero positive Data 0000 through 4096 the analog converter value 4095 is the maximum converter value and 4096 is the converters over range value Setting the limit to 4096 will disable that alarm limit EXAMPLE 701 1 2000 Set analog input number 1 high alarm setpoint to 2 000 volts or 40 2000 volts depending on the range selected DEFAULT All upper limits analog inputs 4096 All lower limits analog inputs 4096 Page 36 Pacific Research PET 820 User Manual 4 6 3 SET ANALOG INPUT INTEGRATE RATE
71. nge using a higher voltage 1 Disconnect all analog signals that are connected to the analog board and connect your voltage source channel 1 of the analog board Turn power to the PET 820 on and make sure the unit is not armed 2 Set the precision voltage source to 0 4000 volts Other lower voltages may be used but try to use the highest voltage to 0 4000 volts as possible If you don t have a precision voltage source than set the adjustable voltage source to 0 4000 volts using your volt meter 3 Set the PET 820 s ADC mode to low range using programming command code 790 4 Using command code 621 read the analog voltage at channel 1 and adjust R13 low range adjust shown in Figure 6 2 until the unit speaks the same voltage that is being applied to the input 5 Now you are ready to adjust the high range Re adjust the voltage source to 4 000 volts or as close as you can 6 Set the PET 820 ADC mode to high range using programming command code 791 7 Using command code 621 read the analog voltage at channel and adjust R11 high range adjust shown in Figure 6 2 until the unit speaks the same voltage that is being applied to the input 8 Re set the PET 820 s ADC mode to the original range and re connect all of the analog signals This completes the procedure Page 50 Pacific Research PET 820 User Manual EEPROM OPTION CONNECTOR REAL TIME CLOCK PROGRAM MEMORY DATA RAM er AD uas A GUNZ
72. no activity is detected for 30 seconds This is announced when it Occurs EXAMPLE KB time out KeyBoard Page 12 Pacific Research PET 820 User Manual 33 OPERATING COMMAND FORMAT All operating commands contain four parts The first part Command Code defines the function that is to be executed The second part Key Code is used as a security function within the operating command codes The third part User Data is the new information that replaces the previous information in the appropriate command code memory location The data information is not always required Refer to each command for details The fourth part identifies the end of the command string This works in the same manner as the ENTER key on a computer keyboard The following is an example of a typical operating command COMMAND SYNTAX Command Code Key Code lt User Data gt The user data may be optional or required in certain commands Throughout this section the following punctuation will be used to identify the syntax of all command codes WHERE Enter end of data string Clear start command over again Prompts user for missing parameters lt gt Prompts user for optional parameters 34 TELEMETRY READ BACK Once the user has issued an operating command the PET 820 will read back the current condition of that operation in standard English speech You can also read back the current condition of any command code data by not entering
73. o 1200 baud DEFAULT 6 9600 baud 4 5 40 RESERVED FOR FUTURE USE COMMAND CODE 51 4 5 41 RESERVED FOR FUTURE USE COMMAND CODE 52 4 5 42 RESERVED FOR FUTURE USE COMMAND CODE 53 4 5 43 RESERVED FOR FUTURE USE COMMAND CODE 54 4 5 44 SERIAL PORT STATUS ENABLE If your PET 820 has included the 5 232 serial port you can connect it to a terminal PC with terminal emulator software or printer and enable the status mode The PET 820 will then output status information on internal operations This can be valuable for monitoring system operation and debugging COMMAND CODE 55 PROGRAM SYNTAX 55 ON OFF READ BACK SYNTAX 50 WHERE ON OFF Zero 0 or Non Zero 1 9 0 2 Off EXAMPLE 55 1 Turn on status mode DEFAULT 0 OFF 4 5 45 INITIALIZATION OF SPEECH DATA RAM OPTION REQUIRED This command will return all data in the 16 speech message buffers back to the original factory default settings All data subsequently stored or changed will be lost COMMAND CODE 80 PROGRAM SYNTAX 80 Page 34 Pacific Research PET 820 User Manual 4 5 46 SYSTEM EEPROM INITIALIZATION This command will re initialize all of the systems characteristics to the original factory default settings CAUTION When using this command any changes or new characteristics that have been stored will be lost including passwords key code and program authorization codes In order to operate this command the user must include the unit serial number
74. o 6 digits Any amount of digits may be used within the range of 1 to 6 Each digit with a value of 0 through 9 The default key code of 11 can be changed but once this code is changed the default code will no longer work COMMAND CODE 13 PROGRAM SYNTAX 13 Data READ BACK SYNTAX 13 WHERE Data 1 through 6 digits each digit may be a value of 0 through 9 EXAMPLE 13 1441 Changes the existing operate key code to 1441 DEFAULT 11 4 5 4 CHANGE PASSWORD Changing the PASSWORD consist of the command code value 14 followed by the new PASSWORD of 1 to 6 digits Any amount of digits may be used within the range of 1 to 6 Each digit with a value of 0 through 9 The default password 321 can be changed but once this code is changed the default code will no longer work COMMAND CODE 14 PROGRAM SYNTAX 14 Data READ BACK SYNTAX 14 WHERE Data 1 through 6 digits each digit may be a value of 0 through 9 EXAMPLE 145551 Changes the existing Password to 5551 DEFAULT 321 4 5 5 CHANGE UNIT ADDRESS This is a 1 to 4 digit value that may be programmed in order to identify the location of the PET 820 that generated the alarm The speech command word 007 may be included into one of the message buffers to speak the unit address or identify the source of an alarm COMMAND CODE 15 PROGRAM SYNTAX 15 Data READ BACK SYNTAX 15 WHERE Data 1 through 4 digits each digit may be a value of 0 through 9 EXAMPLE 15 1221
75. ok switch this is termed as on hook OPERATE COMMAND CODE An instruction that tells the system to perform a function PASSWORD A system access code that is used to secure access to all functions of the PET 820 Page 55 Pacific Research PET 820 User Manual PROGRAM AUTHORIZATION CODE programmable code that allows access to programming or changing characteristics of the system PROGRAM COMMAND CODE A code that identifies the feature or function in which you wish to alter RAM Random Access Memory This is a type of computer memory that is used to store both temporary and long term data In the PET 820 this memory is battery backed which means that when the power is removed the the system will still retain its data READ BACK A voice response from the PET 820 due to an operation from the user RTC Real Time Clock This is a hardware function separate form the microprocessor which keeps track of time and date Time and date could tracked by the microprocessor but power would have to be maintain on the system in order not to lose time In the PET 820 the RTC is powered by a battery so that the time and date will not be loss SINGLE ENDED A signal where one side of the connection is at zero volts and can be connected to ground The equipment will measure the other connection s voltage in reference to ground or zero volts SYNTHESIZED SPEECH A method of generating synthetic speech typically from some type of computer or microproc
76. ollowing table provides examples of different values that can be used to solve the appropriate conditions Analog voltage ADC ADC Offset Fact D P Round Full scale Zero scale Full scale value range value value pos off units 0 1010 0 3010 3010 LOW 0110 0862 5 2 25 00 0 000 1 225 1225 HIGH 0000 0816 6 2 1 00 0 000 1 225 1225 HIGH 0000 0816 4 1 100 0 2 335 3 335 3335 HIGH 2335 0770 4 3 77 000 Page 40 Pacific Research PET 820 User Manual The following list are items to consider while you are setting up values for the purpose of scaling 1 Use the offset value to set zero point remember that if your span was 2 000 volts 1 000 to 1 000V and you want to offset the 1 000V to 0 000V Adding 1 000V to the ADC value will still have a span of 2 000 volts 0 000V to 2 000V 2 Pay attention to high and low range mode of the ADC this will effect the decimal point position 3 To divide an ADC value use a factorial value less than one This is done by increasing the decimal point position so that the factorial value becomes a 0 XXXX value 4 If the sign identifier is disabled keep in mind that 0 1 and 0 1 will now appear to have the same value zero point one COMMAND CODE 57 PROGRAM SYNTAX 57 Input Data READ BACK SYNTAX 57 Input WHERE Input 1 through 8 Data 0000 through 2047 EXAMPLE 57 1 1200 Multiply analog input 1 value by 1200 DEFAULT All inputs 1000 4 6 12 3 S
77. ommands that are available for your use Page 10 Pacific Research PET 820 User Manual OPERATING INSTRUCTIONS 3 0 OPERATING The operating commands are the principle means for the user to control the PET 820 s basic operations These functions typically do not change the characteristics of the system but only turn on off or interrogate conditions of the system The operating commands can be issued either from a telephone or by the optional local keypad display 31 PRINTED CIRCUIT BOARD INDICATORS There are two LED or indicators located inside of the terminal cover These LED s are used for monitoring the status of the PET 820 The left indicator green LED indicates the operation of the PET 820 If this LED is flashing it is indicating that the PET 820 is no longer operating This may occur due to low battery voltage or certain types of hardware or software failures If this LED continues to flash see the trouble shooting section of this manual in order to determine the problem The LED on the right indicates the operating mode of the PET 820 This is a two color indicator red and green and is used to display the status mode of the system Reference the following table as to the modes that this LED may display Also note that the LED will flash red upon receiving a ring signal from the telephone line COLOR FLASH RATE DESCRIPTION None None One or more loop circuits are set the unit is not ready to arm Green Steady All loop circuits
78. on Turn off power to the PET 820 before disassembly and hook up Remove the 4 screws from the upper panel and remove the panel Under this panel is the location of the analog input board and its terminals Using some hook up wire connect channel 1 of the analog input to an adjustable power source The channel 1 high side is terminal 1 of the analog board and ground or return is terminal 2 Turn on the power and adjust your power source for a known voltage less than 4 095 volts You can check this voltage at the terminal of channel 1 input Establish communication with the 820 and send the units password if required Now send 631 the PET 820 will read back the current voltage at this input in volts Review the programming section of this manual to get familiar with all of the characteristics prior to making any changes in the units operation ESTABLISHING COMMUNICATION The following are three different methods for establishing communication with the PET 820 These methods vary due to the type of communication interface that you may used Review each method to determine which applies to your condition and also understand how the other methods work as they may apply in future applications 1 If the PET 820 is connected to a standard telephone line or PBX and a second line or station extension is available to communicate with the system Dial the telephone number at which the PET 820 is connected to After 4 rings the unit should
79. ons right of the decimal point All inputs 3 ENABLE SIGN FOR ANALOG SCALED VALUES This command allows you to enable the positive or negative sign for use in the analog scaled values If the sign is disabled the word positive or negative will not be spoken as part of the scaled analog value COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 4 6 12 6 68 68 Input Data 68 Input Input through 8 Data Zero 0 or Non Zero 1 9 Zero disable Non Zero enable 68 1 0 Disable the sign information for scaled analog input 1 All inputs Non Zero Enable CHANGE SPEECH IDENTIFIER FOR ANALOG SCALED VOLTAGES The identifier is a group of one to four words that can be added to the end of the scaled analog value to identify the type of units being measured An example would be PSI Fahrenheit Celsius Feet Volts Watts Etc The identifier is programmed as a single group of words which is not in the same manner that you would program the speech message buffer The identifier does not require an end character or a pause COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 69 69 Input Word lt Word gt lt Word gt lt Word gt 69 Input Input through 8 Word 000 through 255 69 1 064 062 059 The identifier for input 1 is R P M 69 1 111 126 The identifier for input 1 is Degrees Fahrenheit All inputs 245 VOLTS Page 4
80. onverter and how it operates Second are commands that are used to set up scaling factors for each of the inputs In most all of the analog commands data is referred to as ADC values plus and minus 0000 through 4095 This is the total range of the analog converter These are the counts of the analog converter and each count in the high scale equals 1 millivolt In other words an analog count of 1000 would be 1000 millivolts or 1 000 volts In the low scale each count equals 100 microvolts an analog count of 1000 in this scale would equal 1000 microvolts or 0 1000 volts Page 35 Pacific Research PET 820 User Manual 4 6 1 RESET ANALOG HIGH AND LOW VALUES This command is used to reset the analog values in the high and low maximum and minimum register Each channel can be independently reset so not to effect other channels that may be currently recording their values When you reset a channel the current analog voltage is recorded along with the time and date Then these registers will be updated each time a new analog value exceeds a value currently stored in the register COMMAND CODE 66 PROGRAM SYNTAX 66 Input WHERE Input 1 through 8 EXAMPLE 66 1 Reset analog input 1 high and low values to current values 4 6 2 SET ANALOG HIGH AND LOW ALARM SETPOINT Both the high and low alarm setpoints are used to define a window or group of voltages that are considered to be acceptable Any voltage measurement that is outside of this wi
81. oop configuration Select alarm relay output Change loop configuration Select phone access Change loop configuration Select response time Change loop configuration Select alarm message Change loop configuration Select monitor output Eight telephone number log Delete telephone number form log Set day of week RTC option Alarm communication Programming and control communication Radio interface enable Local ARM DISARM control enable Loop 8 ARM DISARM control enable Disable password requirement Enable pulsing alarm relay output Select DTMF DIAL PULSE mode Set time RTC option Set date RTC option Select serial port BAUD RATE Reserved for future use Reserved for future use Reserved for future use Reserved for future use Serial port status enable Initialization of speech data RAM option required System EEPROM initialization Change direct byte in EEPROM Demonstrate speech library Analog input option programming commands Page 2 Pacific Research 5 0 6 0 7 0 8 0 4 6 1 4 6 2 4 6 3 4 6 4 4 6 5 4 6 6 4 6 7 4 6 8 4 6 9 4 6 10 4 6 11 4 6 12 4 6 12 1 4 6 12 2 4 6 12 3 4 6 12 4 4 6 12 5 4 6 12 6 PET 820 User Manual Reset analog high and low values Set analog high and low alarm setpoints Set analog input integrate rate Enable analog input for alarm output Enable analog input for alarm relay output Select telephone number access for each analog input alarm Select analog alarm message
82. or detailed word list and programming tables Each word in the speech library has a word address associated to it The word address is the number that is used when programming the required word Each word is programmed into the message buffer one at a time The speech library is also separated into two parts a low word group and a high word group The low word group starts at word address 016 and ends at address 255 The high word group also starts at 016 and ends at address 255 except that each word is different When selecting the high or low word group the speech command word 014 or 015 must be programmed Keep in mind that each time a speech buffer begins it starts by using the low word group so a 014 does not need to be programmed as the initial word group select The speech command words 000 through 015 may be used regardless to whether the low word group or the high word group has been selected It is also recommended that all messages start with 750 millisecond pause speech command word 001 and end with an end of message speech command word 000 If the end of message command word is missing the speech may continue on into the next buffer unless this condition is desired The message buffer programming tables included in the APPENDIX C may also be used in planning and assist in the programming of the message buffers COMMAND CODE 25 PROGRAM SYNTAX 25 lt Word Address gt Word Data READ BACK SYNTAX 25 WHERE Word Address 00 through 15
83. or to that alarm function being stored permanently and communication being established When no alarm delay has been selected and once the system has detected a change in the input status the alarm is recorded and communication will then begin COMMAND CODE 31 PROGRAM SYNTAX 31 Loop Data READ BACK SYNTAX 31 Loop WHERE Loop through 8 this identifies the loop for change Data Zero 0 or Non Zero 1 9 Zero No alarm delay instant Non Zero enables alarm delay EXAMPLE 313 1 Enable loop 3 for alarm delay DEFAULT loops 0 Page 27 Pacific Research PET 820 User Manual 4 5 21 CHANGE LOOP CONFIGURATION SELECT ALARM RELAY OUTPUT Each of the loop circuits can be configured in a manner to energize the alarm relay once the alarm has been detected This feature may be used to operate a siren or flashing lamp to identify the alarm condition Note that the alarm relay is also shared with the monitoring and relay output control function Any one of these other functions can also effect the operation of the relay COMMAND CODE 32 PROGRAM SYNTAX 32 Loop Data READ BACK SYNTAX 32 Loop WHERE Loop through 8 this identifies the loop for change Data Zero 0 or Non Zero 1 9 Zero no relay output Non zero enables relay output EXAMPLE 323 1 Set loop 3 for alarm relay output DEFAULT Loop 1 Non Zero Loop 2 through 8 0 4 5 22 CHANGE LOOP CONFIGURATION SELECT PHONE ACCESS Once a loop
84. radio broadcast antennas 6 Install at least 8 ft from radios and televisions 6 3 MOUNTING The wall where the PET 820 is to be mounted must be able to support the weight of the PET 820 If screws other than the ones supplied are used make sure to use the same size screws as supplied with the system Three mounting holes are provided in the PET 820 enclosure Top center has a sealing plug provided The lower two holes are isolated for improved sealing 6 31 TO WALL MOUNT 1 Place the template included Appendix D on the wall and mark the three screw positions 2 Install the top middle screw so that the head is 1 16 to 1 8 from the wall 3 Remove the terminal cover this is lower cover that is held on two screws Hook 820 on the first screw already installed 4 Finish mounting the PET 820 using the lower two holes on the left and right side of the terminal compartment Page 47 Pacific Research PET 820 User Manual 6 3 2 TO MOUNT ON CONCRETE OR MORTAR WALLS 1 Place the template included in Appendix D on the wall and mark the three screw positions 2 Drill three holes and drive the anchor plugs included with a hammer flush to the wall 3 Install the top middle screw into the anchor plug so that the head is 1 16 to 1 8 from the wall 4 Remove the terminal cover this is the lower cover that is held on by two screws Hook the PET 820 on the first screw already installed 4 F
85. rating characteristics may completely disabled Once programming has been completed and no other changes are desired this switch should be returned to the off position The Program Authorization Code consists of the command code digit 61 followed by the authorization data 987654 and Entering the program authorization code places the PET 820 into the user programming mode Before you can enter the program authorization code you must first enter the password The default program authorization code is 987654 and can be changed Once this code is changed the default code will no longer work In order to execute the program authorization code you must have the password activated and the unit in the disarm mode SYNTAX 61 authorization data EXAMPLE 61 987654 Enables the PET 820 for programming DEFAULT 61987654 43 VALID DATA When you are programming data with values 000 through 255 you must include leading zeros with their values You must also use leading zeros for 2 digit values EXAMPLE To program 1 into a 3 digit value you must enter 001 or to program 10 you must enter 010 Page 19 Pacific Research PET 820 User Manual 4 3 1 DATA TYPES USED Some data values have maximum values and if you exceed these values the command will be aborted As an example if a given command data values range form 00 to 15 and you enter a single digit value or a value larger than 15 the command will abort and data will not be updated EXAMPL
86. rcuit 6 Message buffer 13 Loop circuit 7 Message buffer 14 Loop circuit 8 Message buffer 15 4 5 25 LOOP CONFIGURATION SELECT MONITOR OUTPUT When the alarm monitor function has been turned on any of the 8 loop circuits that have been programmed to output to the relay or digital output will do so when that loop circuit is abnormal Note that both the relay and digital outputs share other functions and when using this feature the user should consider how it might affect other features that also operate the relay or digital outputs COMMAND CODE 36 PROGRAM SYNTAX 36 Loop Data READ BACK SYNTAX 36 Loop WHERE Loop through 8 this identifies the loop for change Data 0 through 3 0 no output 1 relay output 2 digital output 3 both output EXAMPLE 36 3 02 Enable loop 3 for digital output DEFAULT loops 0 Page 29 Pacific Research PET 820 User Manual 4 5 26 EIGHT NUMBER TELEPHONE LOG When the optional RAM RTC is installed the PET 820 is capable of dialing an additional 8 telephone numbers with up to 31 digits each This allows for up to ten 10 different numbers to be dialed during an alarm This eight number telephone log operates differently than the standard 2 telephone numbers When this log is selected the PET 820 will look up and dial each and every number that has been programmed into the log The log positions that don t have a number programmed will get skipped Each of these numbers can also i
87. res to solve some common problems that may occur with the PET 820 One of the inputs may be turned off or improperly configured Check their status with an alarm input programming command codes 70 through 77 Alarm or sign on This may occur due to the message assignments or bad data in the RAM First check the messages and their assignments programming command codes 24 26 and 76 If the message data is bad you can reset to the factory default data by using programming code 80 message confusing or incorrect Unit responds to false Re evaluate the integrate rate values and the type of sensors that are connected to each input you may try to increases the integrate rate in order to ignore unwanted noise Page 54 Pacific Research PET 820 User Manual GLOSSARY AND WARRANTY REPAIR 8 0 GLOSSARY ADC Analog to Digital Converter this is a device or circuit that converts an analog voltage to a digital number ANALOG A voltage that has multiple or dynamic levels with in a given range CLEAR Aborts a function before it is completed to allow the user to start over again DEFAULTS Pre set values that define the system characteristics A default is the value that the unit is set to when supplied from the factory DIFFERENTIAL ENDED signal where neither side of the connection may be at zero volts The equipment typically will measure the voltage between the two connections and not ground DIAL PULSE Used by older t
88. rom operating the relay COMMAND CODE COMMAND SYNTAX WHERE EXAMPLE 09 09 Key Code Relay Digital ON OFF Key Code Reference current key code Relay Zero 0 Digital Non Zero 1 9 ON OFF Zero 0 or Non Zero 09 11 0 1 Energize turn on the relay 09 11 1 0 Turn off the digital output 3 9 11 READ ANALOG INPUT VALUE This command is used to directly read the current analog input voltage at the analog to digital converter prior to any integrating or scaling of the voltage COMMAND CODE SYNTAX WHERE EXAMPLE 62 62 Input Input through 8 62 Read analog input channel number 1 62 4 Read analog input channel number 4 3 9 12 READ ANALOG INTEGRATE VALUE This command is used to read the current analog voltage after the integrator The integrator is a math routine which averages the last predetermined number of readings from the analog to digital converter COMMAND CODE SYNTAX WHERE EXAMPLE 63 63 Input Input through 8 63 1 Read analog integrate value input channel number 1 63 2 Read analog integrate value input channel number 2 3 9 13 READ ANALOG HIGH MAXIMUM VALUE This command reads the maximum analog voltage which occurred since the last time it was reset The maximum voltage will also include the time and date at which it occurred This feature monitors all analog inputs at all times When you are ready to start recording the maximum volta
89. t through 8 ADC OPTION Read ADC integrated value 63 INPUT Input through 8 ADC OPTION Read high maximum value 64 INPUT Input through 8 ADC OPTION Read low minimum value 65 INPUT Input through 8 ADC OPTION Read analog scaled value 67 INPUT Input 1 through 8 ENTER END OF COMMAND STRING CLEAR START COMMAND OVER AGAIN PROMPTS USER FOR MISSING PARAMETERS PROMPTS USER FOR OPTIONAL PARAMETERS A Vo Page 58 Pacific Research PET 820 User Manual PROGRAMMING TABLE Code Syntax Setting Setting 40 Milliseconds to 10 2 Seconds 001 40 mS 40 mS 40 Milliseconds to 10 2 Seconds 025 1000 mS 1 Sec 1000 mS 1 to 6 Digits 1 to 6 Digits 1 to 6 Digits 1 to 4 Digits 000 to 255 Seconds Seconds 000 to 255 Seconds Seconds 000 to 255 Seconds Seconds 000 to 255 Seconds Seconds 00 to 15 Errors 00 Disable counter Errors Set communication dial attempts 00 to 15 Attempts 00 No communication attempts Attempts 1 to 32 Digits 1 to 32 Digits Buffer address 00 through 15 Buffer 0 Change speech message data 25 WORD ADDRESS gt WORD See Section Word Address 00 through 15 4 4 15 Word 000 through 255 Message buffer 00 through 15 Buffer 2 Set ring counter for off hook 27 DATA 04 00 to 15 Rings Rings 00 Disable counter or 15 rings with program switch on Select alarm message delay Select 0 to 3 O None 1 5 Sec 2 15 Sec 3230 Sec 5 Seconds
90. t enough time is allowed This type of configuration will tend not to require an alarm message If a message was included because an another telephone number required the message this type of configuration should not effect the paging system operation 4 5 13 SELECT SPEECH MESSAGE BUFFER FOR UPDATE The PET 820 comes standard with two message buffers that can be updated This is message buffer 00 and 01 If the RAM option has been included then all 16 message buffers may be updated This command is used to select the desired buffer in which to update and can be used to interrogate each of the message buffers This command should always be issued prior to changing data in any of the speech message buffers COMMAND CODE 24 PROGRAM SYNTAX 24 data READ BACK SYNTAX 24 data WHERE Data 00 through 15 EXAMPLE 24 02 Selects message buffer 2 DEFAULT 00 ifa value is not previously entered after the program mode is enabled Page 24 Pacific Research PET 820 User Manual 4 5 14 CHANGE SPEECH MESSAGE BUFFER DATA This command is used to alter the data in the pre selected speech message buffer Once the speech message buffer has been selected using command code 24 the word pointer is reset to 00 Each time a word is entered into the buffer the pointer will be incremented by one You may also force the word pointer to any position 00 through 15 The next word that is entered will be at the next position location Reference APPENDIX C f
91. t input 1 through 8 Select sign ZERO or NON ZERO 0 Neg 1 Pos Data 0000 through 4095 ADC value ANALOG SCALING Set ADC factorial values Select input 1 through 8 Data 0000 through 2047 ANALOG SCALING Set decimal point position ANALOG SCALING Set decimal point round off value Select input 1 through 8 DATA Data 0 through 7 digits right of decimal point 5 2217 73 NR E __ EA Select input 1 through 8 Data 0 through 7 digits right of decimal point Revised 10 13 92 Page 61 Pacific Research PET 820 User Manual PROGRAMMING TABLE Command Programming Command Description Command Factory New Code Syntax Setting Setting 60 Reserved for future use ites e Reserved for future use es C 62 65 See OPERATE COMMAND TABLE Luc alis pe ADC OPTION Reset analog high and low values None Select input 1 through 8 67 See OPERATE COMMAND TABLE ___ ANALOG SCALING Enable sign for analog scaled 68 INPUT 0 values DATA Enable Select input through 8 Non Zero Enable ANALOG SCALING Change speech identifier for analog 69 INPUT 245 scaled values WORD Volts Select input 1 through 8 lt WORD gt Word 000 through 255 String to 4 words together lt WORD gt lt WORD gt ADC OPTION Set upper analog alarm limit 4096 Select input through 8 Sign Zero neg Non Zero pos Limit Data 0000 through 4096 ADC value disabled ADC OPTION Set lower
92. t to detect this closure as an alarm A three seconds response delay may be programmed for that input and all contact closures that occur for less than 3 seconds will be ignored as an alarm COMMAND CODE 34 PROGRAM SYNTAX 34 Loop Data READ BACK SYNTAX 34 Loop WHERE Loop 1 through 8 identifies the loop for change Data 0 or non zero 0 response time 1 non zero response time 2 EXAMPLE 34 2 Selects response time 2 for loop circuit 1 DEFAULT loops 0 4 5 24 CHANGE LOOP CONFIGURATION SELECT ALARM MESSAGE Once an alarm has occurred and the PET 820 has established telephone communication with the user the PET 820 will read back 1 of 16 different messages The message that is read back corresponds to the message number that has been programmed for the loop circuit that generated the alarm Each of the 8 loop circuits may be programmed to read back anyone of the 16 different messages during the alarm condition COMMAND CODE 35 PROGRAM SYNTAX 35 Loop Data READ BACK SYNTAX 35 Loop WHERE Loop through 8 this identifies the loop for change Data 00 through 15 identifies the message buffer to speak during an alarm communication EXAMPLE 35 2 03 Loop circuit will speak message buffer 03 during an alarm DEFAULT Loop circuit 1 Message buffer 08 Loop circuit 2 Message buffer 09 Loop circuit 3 Message buffer 10 Loop circuit 4 Message buffer 11 Loop circuit 5 Message buffer 12 Loop ci
93. that you just programmed If you wish to recheck this number you can enter 22 and the PET 820 will then read back the number Once you have completed this task re arm the PET 820 using the command code 01 11 1 the PET 820 will respond with ON Then issue 00 to end the telephone communication Now the PET 820 is armed and waiting for a change to one of the loop circuit inputs You should be able to identify this conditions from the right hand status LED located between terminals 12 and 13 first flashing red and green indicating arm delay then flashing red at a slower rate indicating armed If you take the loose end of the wire that you connected to the terminal 2 and short it to terminal 1 you should notice that the LED status indicator is flashing at a faster rate or is steadily on After the alarm time delay the PET 820 will then call the telephone number that you just programmed and read back the pre programmed message associated with that alarm input Once the PET 820 has established communication and you have received this message at least one time you may disarm the system by entering the password as pre described 60 321 and disarm command 01 11 0 The PET 820 will then respond with OFF Then you may enter 00 to terminate the communication We have now reviewed some basic operations of the PET 820 and you should review sections 3 0 OPERATING and 4 0 PROGRAMMING Get familiar with the different operating and programming c
94. the user data Examples of this are shown in the command read back syntax 3 5 PASSWORD The password is an individualized code that enables you to gain access to the system The system will respond in standard English speech when the password is excepted A password is required in order to issue any of the following commands First in applications where telephone communication has been established through the PET 820 via the local telephone port and when the system has not answered the original call the password can be used to force the PET 820 to establish communication and disconnect the auxiliary telephone port The default password code is 321 and can be changed through programming Once this code is changed the default code will no longer work reference the programming section of this manual for further details on changing the password code When attempting to send a password the PET 820 keeps track of the number of times that the wrong password is sent and will terminate the telephone call if this count exceeds the maximum number errors allowed see the programming section for more details in changing this counter COMMAND CODE 60 COMMAND SYNTAX 60 Password WHERE Password Current password code EXAMPLE 60 321 Will enable the system to except additional commands DEFAULT 60 321 3 6 KEY CODE Once a password has been issued the user is ready to operate the system operating commands require a key code in order to op
95. to generate an alarm 3 9 6 LOOP MONITOR ON OFF COMMAND Any of the 8 loops may be programmed to operate the relay or digital output for the purpose of monitoring the loop circuit s input activity Issuing a loop monitor ON command will enable any loop circuit that has been defined to operate either the relay or digital output to do so reference the programming section of this manual for more information on configuration of the monitor function This function will operate independent of the ARM DISARM function including the turning loop circuits off COMMAND CODE 05 COMMAND SYNTAX 05 Key Code lt ON OFF gt READ BACK SYNTAX 05 WHERE Key Code reference current key code ON OFF Zero 0 or Non Zero 1 9 EXAMPLE 05 11 Toggle loop monitor function to opposite mode 05 11 0 z Turn loop monitor function off 3 9 7 RESERVED FOR FUTURE USE COMMAND CODE 06 3 9 8 RESERVED FOR FUTURE USE COMMAND CODE 07 3 9 9 RESERVED FOR FUTURE USE COMMAND CODE 08 Page 16 Pacific Research PET 820 User Manual 3 9 10 RELAY AND DIGITAL OUTPUT CONTROL This command allows the user to directly control the operation of the relay or digital output This function may be used to control a remote application turning off on equipment Keep in mind that the control of the relay is also shared by the monitor and alarm function If you wish to solely use the relay as a remote control you must disable the monitor and the alarm functions f
96. ts in 1 millivolt increments and the low range is 0 4095 volts in 100 microvolt increments Regardless of which range that is used do not supply an analog voltage greater than 5 50 volts to any of the inputs COMMAND CODE PROGRAM SYNTAX READ BACK SYNTAX WHERE EXAMPLE DEFAULT 79 79 Data 79 Data Zero 0 or Non Zero 1 9 Zero Low range 0 4095 volts Non Zero High range 4 095 volts 79 1 Select low range 1 High range 4 6 11 ANALOG TO DIGITAL CONVERTER INITIALIZATION This command will reinitialize only the systems characteristics relating to the analog input option The reset values are the original factory default settings Caution when using this command any changes to the operation of the analog input option or new characteristics that have been stored will be lost In order to operate this command the user must include the unit serial number This is a 8 digit number that is identified on top of the program EPROM and on the back side of the circuit board The program authorization is not required to execute this command Caution should be taken in identifying to unqualified users the unit serial number and use of this command COMMAND CODE PROGRAM SYNTAX 84 84 Serial No 4 6 12 ANALOG SCALING ENGINEERING UNITS This feature has been provided for the purpose of scaling an analog input value to engineering units or some meaningful data for the user As an example an output from a pressur
97. ved for future use 3 9 0 Reserved for future use 3 9 10 Relay and Digital output control 3 9 11 Read analog input value 3 9 12 Read analog integrate value 3 9 13 Read analog high maximum value 3 9 14 Read analog low minimum value 3 9 15 Read analog scaled value Page 1 Pacific Research 4 0 PET 820 User Manual 4 1 4 2 4 3 4 3 1 4 4 4 5 4 5 1 4 5 2 4 5 3 4 5 4 4 5 5 4 5 6 4 5 7 4 5 8 4 5 9 4 5 10 4 5 11 4 5 12 4 5 12 1 4 5 13 4 5 14 4 5 15 4 5 16 4 5 17 4 5 18 4 5 19 4 5 20 4 5 21 4 5 22 4 5 23 4 5 24 4 5 25 4 5 26 4 5 27 4 5 28 4 5 29 4 5 30 4 5 31 4 5 32 4 5 33 4 5 34 4 5 35 4 5 36 4 5 37 4 5 38 4 5 39 4 5 40 4 5 41 4 5 42 4 5 43 4 5 44 4 5 45 4 5 52 4 5 53 4 5 54 4 6 Programming command format Program Authorization Code Valid data Data types used Examples of programming Programming command codes Set loop response time Change program authorization code Change operate key code Change password Change unit address Arm delay Communication delay before dialing Alarm relay output cutoff time Alarm delay Password attempt errors Communication dial attempts Change telephone number Configure for pager access Select speech message buffer for update Change message buffer data Select sign message Set ring counter Select message delay Alarm message repeat Change loop configuration Select active state Change loop configuration Select alarm delay Change l
98. voltmeter on the AC scale check the voltage from terminal 21 and 22 there should be less than 3 volts AC If this test fails then re check your wiring and or have an electrician check the AC outlet for proper wiring 3 Connect a telephone line to terminals 13 and 14 or you may use the keypad display If telephone lines PBX or keypad display are not available refer to the diagram in APPENDIX D for information on building a simulated telephone interface test circuit 4 Using a 6 long wire strip 1 4 at both ends and connect one end to terminal 2 5 Turn on the power switch the left hand switch near terminals 20 21 and 22 You should observe that the left hand green LED on the circuit board or the LED labeled operate on the front panel if keypad option was included is on and not flashing If the LED will not turn on or is flashing consult the trouble shooting section of this manual for further information Page 8 Pacific Research PET 820 User Manual 2 21 ANALOG INPUT OPTION START UP PROCEDURE The following is a start up procedure for the PET 820 s Analog option Default password key code and Program Authorization Codes are used in the following examples Refer to figure 6 2 for detailed electrical hook up diagram for the analog option If this section does not apply go to section 2 3 of the manual 1 2 2 3 Follow the bench testing procedures located in SECTION 2 2 before going any further within the following secti
99. will not be allowed to access the programming mode If programming is desired you must turn this switch to the NO position 1 4 RAM and REAL TIME CLOCK OPTION If your unit has included the RAM RTC option you will fine that some of the PET 820 s operations are enhanced These enhancements include the following 1 Increased the number of message buffers from 2 to 16 that can be modified 2 Increase the number of telephone numbers form 2 to 10 that can be stored 3 Add date and time stamp to the alarm When alarm message is received the date and time of the alarm will be included with the message 4 This option is required in order for the analog option to operate Page 6 Pacific Research PET 820 User Manual 1 5 ANALOG OPTION The analog option is used to monitor analog voltages and initiate an alarm if a voltage goes above or below a preset limit This option can monitor up to eight analog voltages You can scale each of the voltages to engineering units temperature level pressure flow You can also interrogate as to the current voltages or engineering units and the last high or low readings when they occurred since the last time you reset the them Page 7 Pacific Research PET 820 User Manual GETTING STARTED 2 0 BENCH TESTING The following paragraphs provide a method for becoming familiar with the PET 820 prior to understanding all of its capabilities and detailed operational characteristics This test assume you hav
100. y Code Reference current key code Loop 1 through 8 EXAMPLE 02 11 3 Read back current condition of loop circuit 3 02 11 Read back current condition of all eight loop circuits 3 9 4 READ BACK LAST ALARM STATUS This command may be used to read back the systems most recent alarm If your system was ordered with the RAM RTC option the read back of the alarm status will also include a date and time stamp of when the alarm occurred This command operates the same for both digital and analog inputs The read back of an analog alarm status will always include a Date and Time stamp due to fact that the RAM RTC option is required COMMAND CODE 03 COMMAND SYNTAX 03 Key Code WHERE Key Code Reference current key code EXAMPLE 03 11 Read back most recent alarm Page 15 Pacific Research PET 820 User Manual 3 9 5 LOOP CIRCUIT ON OFF This command may be used to turn ON or OFF any of the 8 loop circuits without effecting the monitoring capability This command can be effective in disabling an input that has generated an alarm in order to allow you to re establish the ARM mode without that input generating a new alarm COMMAND CODE 04 COMMAND SYNTAX 04 Key Code Loop ON OFF READ BACK SYNTAX 04 Loop WHERE Key Code Reference current key code Loop 1 through 8 ON OFF Zero 0 or Non Zero 1 9 EXAMPLE 04 11 1 0 Turn off loop 1 so that it will not generate an alarm 04 11 1 1 Turn on loop 1 and allow it

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