CHAPTER 1 - Decision
Contents
1. Operations Manual RS232 Watchdog box Operations Manual RS232 Watchdog box 0000000000000 00000 CHAPTER 7 CONTINUATION OF THE CHART EXTENSION POWER CONTROL B OX RATE MUST MUST MAX POWER VOLTAGE OPERATIVE DROPOUT VOLT COMSUMPTION VDC VOLTAGE VOLTAGE W 7 1 Features 1 Miniature high power designed for mounting on P C Board cs his A 2 High contact rating 10 30A high shock vibration resistance 3 High reliability and long life 5 4 High temperature design F class 155 degree C is available WE 12 7 2 Specification 18 75Max 10Min 120 Max 0 9 Approx 24 COIL RATING ag 110 RATE COI RATED VOLTAGE RESISTANCE CURRENT VDC 5 27 185 6 40 93 12 155 77 18 380 47 24 660 36 46 2300 21 110 13400 a a 25 26 DECISION Computer International DECISION Computer International Operations Manual RS232 Watchdog box Operations Manual RS232 Watchdog box Mo lo da I I o I IE I IE IE Il IE IE a IE IE IE IE IE IE IE IE I IE IE I I dl I IE IE I IE I I DECISION Computer International a 27 7 3 Characteristics UL CSA RATING TYPE Contact SPST 1 Form A SPDT 1 Form 0 Form A Form B Form C Arrangement 50 60 Hz 50 60 Hz 50 60 Hz Contact Material AGODO NO NC NO NC Contact 50 m ohm Max Resistive 10A 240V2. 2 RG59AU Connector The RG59AU connector of watchdog is used to connect to expansion power control box 3 Y Mode RS232 Cable The Y mode RS232 cable contains three connectors first is control side second is signal side third is watchdog side The signal side is connected to the device or computer that is used to detect its signals the watchdog side is connected to watchdog box and the control side is connected to device or computer that communicates with signal side connector Control side Signal side 10 DECISION Computer International Operations Manual RS232 Watchdog box Mo lo IE IE I I I IE I IE IE I IE I I IE IE IE IE IE IE IE IE IE IE IE IE IE IE I I IE IE ML I j 4 RS232 Cable The RS232 cable is used to connect between computer and watchdog box Under command check mode user can send command from computer to watchdog box If you select command check mode you must connect this cable and write application program to refresh timer RS 232 CABLE STAND ALONE WATCHDOG BOX Ed POWER BOX POWER ADAPTER RESET CABLE FSS a J A YMODE CABLE 43 LED There are two LEDs in the watchdog dog box one is power on LED and another is status LED When watchdog is activation the power on LED will light The status LED will show the status of watchdog in the normal condition the LED will flash at low speed about 0 5 AN DECISION Computer International 11 Operatio
3. signals Under this mode the hardware configuration is shown in the follow Two general converters must be connected at both control side and signal side User can select communication mode to reset computer or reset power control box or select command check mode to refresh timer from computer 3eneral Convertes Watchdog RG59 cable Reset line Signal side 3eneral Convertes Power control box Reset MODEM power DECISION Computer International 17 Operations Manual RS232 Watchdog box I IE I I I I IE I O IE IE a a IE DM IE Ma IE IE IE IE IE Ma IE IE I I IE I IE HE IE IE IE IE IE The signal configuration of general converter is TxD RxD RIS CTS DTR DSR TxD RxD RTS CTS DTR DSR A a a a a a a a a a an 18 DECISION Computer International Operations Manual RS232 Watchdog box I IE I I I I I IR IR I IR IR IR IR IE IE IE IE IE IE I IE IE IE IE I I IE I I I I ME I I Mi I 5 Monitoring device User can set watchdog to monitor device signals Under this mode 1t can be used to monitor device signals the hardware configuration is shown in the follow The general converter must be connected at control side User can select communication mode to reset computer or reset power control box or select command check mode to refresh timer from computer 3eneral Convertes Watchdog Signal side Reset line Power control box Reset device p
4. 5A 240 V 10A 240V 5A 240V Resistance AC AC AC AC Switching DC 125V Max AC 250 V Max Tungsten SA 240V 3A 240V 5A 240V 3A 240V Operate Time lt 10 ms HP 1HP 125V AC 2HP 1 2HP 125V AC 1HP Pelr ase me ens Coil Ratin Una ee Insulation 1000M ohm min 500V DC E Resistance Dielectric 1400 VAC 60 Hz 1 min between Eom eee Eom E ce Strength open contact2800 VAC 50 Hz 1 min Hz a A ES and contact H type NO NC NO NC Shock Resistance 10g Approx a A mo c si c aes c 100k Vibration 1 65 mm excursions from 10 55Hz ane VDC 240VAC 240 VAC 20A Resistance 10 55 Hz 240V 240VA Ambient Storage 55 C to 130 C Operating AC C eva eae HP 1HP 30LRA 1hp 30LRA Humidity EE E 16 IOFLA 12 16FLA Operation Life Mechanical 10 Electricaal 10 at FLLA 0V 30 120V 10FLA rated load 120V 120V Weight 22 gr Approx Open Type 28 gr 2HP LRA 2hp 30LRA Appro Sealed Type 12 FLA 10FLA 24 12FLA te 2 i 240V 0V 240V IOFLA Note Specifications are subject to change without notice 240V Coil Ratings 5 120VDC aa 28 DECISION Computer International Operations Manual RS232 Watchdog box Mo lo I IE a lo I IE I IE IE Il a IE I IE IE IE I IE I IE IE I I IE I I dl I IE o a j APPENDIX A WARRANTY INFORMATION A 1 Copyright Copyright 2001 2002 DECISION COMPUTER INTERNATIONAL CO LTD All rights reserved No part of WATCH DOG software and manual may b
5. of motherboard Connect the J2 to the reset switch of PC panel Connect RGS9AU connector to expansion power control box and then connect the power control box to the power plug Also connect peripheral power to power control box if necessary Connect Y mode RS232 cable among RS232 watchdog box computer and MODEM Connect power adapter to RS232 watchdog box and power plug Turn on the power of your PC aaa 6 DECISION Computer International Operations Manual RS232 Watchdog box Mo lo I Il I I I IE I IE I Ml IE IE Md IE IE IE I IE IE IE IE Il IE IE I I dl I IE IE I IE I I CHAPTER 4 HARDWARE CONFIGURATION 4 1 Jumper Settings Be sure to connect J1 and J2 at reset signal of main board and to reset push button then set the jumpers 1 Mode Selection MODE SWITCH Communication Check Mode SW1 ON Command Check Mode SW2 ON Ring Check Mode SW3 ON The SW1 SW2 and SW3 are used to select control modes that watchdog box will entering To select control mode user can switch corresponding switch to ON state The watchdog box supports multiple modes together it means you can select more than one switch to ON state 1 1 Communication Check Mode When SWI is ON the watchdog box enter to communication check mode it will monitor TxD DTR and RTS signals that connect to RS232 port of the computer Any activity of one of these lines will refresh watchdog timer The system will be reset if n
6. to refresh watchdog timer Second is communication check mode which refresh watchdog timer automatically while Transmit Data TxD Data Terminal Ready DTR and Request To Send RTS signals are activated Another is ring check mode which reset system automatically if ring no answer is detected after preset ring count In the distribution diskette we provide software for MS DOS Linux Unix Windows 95 Windows 98 Windows NT4 0 workstation and Windows 2000 operating systems The features of the stand alone RS232 watchdog box are e Plug and play features for easy installing e User can monitoring communication signals without write any program e Provides user selectable refresh timer e Monitoring the RS232 control lines TxD DTR RTS activity The system will be reset if no RS232 signals activity during preset refresh time e Monitoring the Ring Indicator RI signal The system will be reset if ring no answer is detected after preset ring count e When the application program or computer system does not generate refresh signal the computer will be reset 2 DECISION Computer International Operations Manual RS232 Watchdog box Mo lo IE IE I I I IE I Ml IE Il IE IE I IE IE IE IE IE IE IE IE I IE IE I I I Bb I IE IE LM o I automatically e Provides command check mode to control watchdog from computer side e Provides user selectable power on delay timer to let computer start monitor system until complete
7. E IR IE IE IE IE IE IE IE IE I I Bb I IE IE I IE I a j CHAPTER 6 SOFTWARE In the distribution diskette we support the sample programs for MS DOS Windows 95 Windows 98 Windows 2000 Linux Unix and Windows NT to access watchdog 6 1 Diagnostic under DOS After configuring the necessary settings on the DOS prompt type QCSWD then press ENTER to run the DOS test program As you run the test program it has the following control that need to be identified to manage the QCSWD DOS test program properly SP Space Bar this keys need to be press first to display the test program navigation output 0 zero press zero 0 to start monitoring the Watchdog 1 one press to override the timer functions by turning ON and OFF the watchdog manually 2 two press to reset the Watchdog operation 3 three press to reset the Watchdog in 10 seconds To update the reading or value on the screen press SP space bar 4 four press to hold or stop the checking progress to continue checking press SP 5 five press to swap the type of connection between COM1 or eee DECISION Computer International 23 Operations Manual RS232 Watchdog box RRR RRR RRR RRR IE IE IE IE I IE IE IE IE IE IE IE IE IE IE IE IE IE COM2 8 eight press to trigger RTS and DTR modes 9 nine press to trigger transmit receive modes aaa 24 DECISION Computer International
8. Operations Manual RS232 Watchdog box Mo I IE IE I I I IE I IE IE Il IE IE I IE IE IE IR IE IE IE IE IE IE IE IE IE IE Ml IE EE IE I IE IE I j CHAPTER 1 INTRODUCTION The standalone RS232 watchdog box is your systems and peripheral applications protector RS232 Watchdog box provides user selectable refresh timer to be used inside your PC which prevents the computer to hang by automatically resetting the system of your computer it is also monitoring RS232 control lines and detecting ring indicator signal from MODEM which prevents the computer and peripheral to hang by automatically resetting your computer and peripherals RS 232 CABLE STAND ALONE WATCHDOG BOX a POWER ADAPTER RESET CABLE FSS a D Y MODE CABLE DECISION Computer International 1 Operations Manual RS232 Watchdog box Mo IE o a IE I IE I I IE IE Md I IE IM IE I IE IE IE IE IE I IE IE IE IE IE I IE IE IE IE IE IE IE The RS232 watchdog box is an external device that connect between your computer and MODEM when the RS232 watchdog box is enable the system software application program or MODEM must refresh watchdog before selected time slice is reached otherwise the computer will be reset and the power of power control box that connects to peripheral devices will also be reset To refresh watchdog timer there are three modes can be selected one is command check mode which reguires application program to use command
9. a a a a a a a a a a a aaa aaa 14 DECISION Computer International Operations Manual RS232 Watchdog box I I I I I I I IR IE I IR IR IR IR IE IE IE IE IE IE I IE IE IE IE IR IR IE IE IE IE I ME I I Ni I c Reset both computer and power control box When time out is detected the computer will be reboot and the power control box will be reset Signal side 2 Monitoring application program of computer To write application program to refresh timer Watchdog RG59 cable Reset line Power control box Watchdog box Reset line IN DECISION Computer International 15 Operations Manual RS232 Watchdog box Mo I o I I I IE a I I IE a ID IE I amp IE IE Ma I IE I I IE I IE IE IE IE IE IE IE IE IE IE IE IE IE 3 Monitoring communication parameters and application program of computer Watchdog side Watchdog RG59 cable Signal side Another COM port Reset line device RS232 cable mra ara a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a aaa aaa 16 DECISION Computer International Operations Manual RS232 Watchdog box Mo IE IE IE a I I IE I IE I Il IE IE I I IE IE IE IE IE IE IE Il I IE IE I IE Il I IE IE IE IE I I 4 Monitorine MODEM User can set watchdog to monitor MODEM signals In the previous mode the watchdog is used to monitor computer signals however under this mode it can be used to monitor MODEM
10. ace or repair the item at no additional charge This limited warranty does not cover damage resulting from incorrect use electrical interference accident or modification of the product All goods returned for warranty repair must have the serial number intact Goods without serial numbers attached will not be covered by the warranty Transportation costs for goods returned must be paid by the purchaser Repaired goods will be dispatched at the expense of WATCH DOG To ensure that your WATCH DOG product is covered by the warranty provisions it is necessary that you return the Warranty card Under this Limited Warranty DECISION s obligations will be limited to repair or replacement only of goods found to be defective as specified above during the warranty period DECISION is not liable to the purchaser for any damages or losses of any kind through the use of or inability to use the WATCH DOG product DECISION reserves the right to determine what constitutes watranty repair or replacement Return Authorization It is necessary that any returned goods are clearly marked with an RA number that has been issued by DECISION Goods returned without this authorization will not be attended to A a a a a a a a a a a a an 30 DECISION Computer International
11. booted e The maximum distance of RG59 cable from watchdog box to power control box is up to 5m e Available with 110V and 240V 10A Plug type UK Europe USA and Austria type selectable for extension power control box e Suitable for MS DOS Linux Unix Windows 95 Windows 98 Windows NT Windows 2000 operating systems 1 1 Applications On industrial application lots of computers are automatically operating itself once the power turns on In case the application got hang surely the computer and its operation hang also If you don t boot your computer again it will not go back to its regular operation but not with the watchdog Because once the watchdog was not refresh it will reset the computer automatically While using your computer unexpectedly your modem got hang One way of connecting it again is to switch off then turn on your modem to continue on working But now it s the new way around RS232 watchdog box will be automatically reset the modem power or computer system It will protect your application software system If your RS232 device hang RS232 watchdog box will automatically reset the device It let your device alive again A aa DECISION Computer International 3 Operations Manual RS232 Watchdog box RRR I IE I RRR RRR RRR IE IE IE IE IE I IE IE I RESE 1 2 The Difference between Watch Dog Adapter and Stand Alone RS232 Watch Dog Box The advantage of standalone RS232 watchdog box over the watchdog I a
12. e reproduced transmitted transcribed or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without the prior written permission of DECISION COMPUTER INTERNATIONAL CO LTD Each piece of WATCH DOG package permits user to use WATCH DOG only on a single computer a registered user may use the program on a different computer but may not use the program on more than one computer at the same time Corporate licensing agreements allow duplication and distribution of specific number of copies within the licensed institution Duplication of multiple copies is not allowed except through execution of a licensing agreement Welcome call for details A 2 Warranty Information DECISION warrants that for a period of one year from the date of purchase unless otherwise specified in the warranty card that the goods supplied will perform according to the specifications defined in the user manual Furthermore that the WATCH DOG product will be supplied free from defects in materials and workmanship and be fully functional under normal usage A DECISION Computer International 29 Operations Manual RS232 Watchdog box Mo IE I I I I IE I ID IE IE a a IE ID IE IE Md I IE IE IE IE Md IE IE I IE IE I IE IE IE IE IE IE IE In the event of the failure of a WATCH DOG product within the specified warranty period DECISION will at its option repl
13. mended you set this switch to ON state A a a a a a a a a a a a an 8 DECISION Computer International Operations Manual RS232 Watchdog box I IE I I I I R O I IR IR IR IE IE IR IR I I I ERE 3 Refresh Timer and Ring Count SW5 SW6 SW7 Refresh Timer Ring Count ON ON ON 15 Secs 2 ON ON OFF 30 Secs 3 ON OFF ON 1 Min 4 ON OFF OFF 10 Mins 5 OFF ON ON 30 Mins 6 OFF ON OFF 1 Hr 7 OFF OFF ON 2 Hrs 8 OFF OFF OFF 3 Hrs 9 The SW5 to SW7 are used to select refresh timer and ring count When communication check mode or command check mode is selected these switches are used to set watchdog refresh timer otherwise it selects ring count under ring check mode 4 Communication Parameters Communication Parameters SWITCH 9600 N 8 1 SW8 ON 2400 N 8 1 SW8 OFF The SWa is used to set communication parameters of RS232 port When set switch to ON 1t will set 9600 baud rate none parity 8 data bits and 1 stop bit Otherwise set 2400 baud rate none parity 8 data bits and 1 stop bit A DECISION Computer International 9 Operations Manual RS232 Watchdog box Mo I I I I a IE I I I IE Ma a IE ID IE IE Ma IE IE I I IE I I IE IE IE IE IE IE HE IE IE IE IE IE 4 2 Connector 1 Jl and J2 If necessary please connect J1 to reset connector of your CPU main board and connect J2 to reset push button on the front panel of your PC
14. nd II is that the standalone watchdog box has an RS232 control lines monitor features it also provides command check mode to let user program can control RS232 watchdog box directly User can also reset the power of power control box by RS232 watchdog box directly without reset whole the computer system When you set to communication check mode or ring check mode for standalone RS232 watchdog box you need not write any program just plug and play it A an 4 DECISION Computer International Operations Manual RS232 Watchdog box Mo lo I IE a I I IE I IE I Ml IE IE a IE IE IE I IE IE IE IE I IE IE I I dl I IE o a j CHAPTER 2 UNPACKING INFORMATION Check that your watchdog package includes following items Standalone RS232 watchdog box Watchdog expansion power control box AC to DC power adapter User manual Y mode RS232 cable with reset line and power control line Reset line RS232 cable General converter option Utility software DECISION Computer International 5 Operations Manual RS232 Watchdog box Mo IE I I I I IE I a I IE a a RRR IE Ma IE IE I I IE I IE IE IE IE IE IE IE IE IE IE IE IE I CHAPTER 3 HARDWARE INSTALLATION The steps for installation are shown as follows 1 CPO Set the DIP switches of RS232 watchdog box Turn off the Power of your PC connect RS232 cable between RS232 watchdog box and computer if necessary Connect the J1 to the reset switch
15. ns Manual RS232 Watchdog box I IE o IE IE I IE I I IE I Ma O IE ID IE IE I IE IE IE IE IE IE IE IE IE IE IE IE IE IE IE IE IE IE IE sec flash one time when the communication signals is activation the LED will flash at medium speed when the watchdog reset condition is detected the LED will flash at high speed 4 4 Hardware Configurations JP1 and JP2 Connection for watchdog tana PCB Reset Connector Reset Push Button aaa 12 DECISION Computer International Operations Manual RS232 Watchdog box 2000000000000 4 5 Applications for Difference Hardware Configuration There are many watchdog applications In the following we describe some applications for difference hardware configurations however you can set up more applications by yourself 1 Monitoring computer communication parameters User can set watchdog to monitor computer signals such as TxD DTR RTS and RI Under this configuration three difference configurations are set a Reset computer When time out is detected the computer will be reboot Watchdog Reset line Signal side DECISION Computer International 13 Operations Manual RS232 Watchdog box RRR I IE I RRR RRR RRR I IE I IE IE IE IE IE I RESE b Reset power control box When time out is detected the power control box will be reset Watchdog Signal side Power control box mra ara a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
16. o RS232 signals activity during preset refresh time Under this mode it need not write any program to control computer just plug and play to monitor your computer signals A DECISION Computer International 7 Operations Manual RS232 Watchdog box Mo Ma I RRR I IE IE RRR RRR IE IE IE IE IE I IE IE IE I IE I IE HE IE IE IE IE IE 1 2 Command Check Mode When SW2 is ON the watchdog box enter to command check mode 1t will accept commands from computer The system software or application program must refresh watchdog timer by using command before selected time slice is reached otherwise the computer will be reset 1 3 Ring Check Mode When SW3 is ON the watchdog box enter to ring check mode it will monitor RI signal that connect to MODEM If the number of rings is exceeded a preset number the system will be reset Under this mode it need not write any program to control computer just plug and play to monitor RI signal 2 Power On Delay DELAY TIMER SWITCH Wait 3 mins SW4 OFF Wait until complete booted SW4 ON The SW4 is used to set delay time when watchdog start to work When SW4 is OFF the watchdog wait 3 minutes to allow computer boot after 3 minutes the watchdog will start monitoring the whole system When SW4 is ON the watchdog will start monitoring until computer booted Carefully to make sure your computer boot time otherwise your watchdog will reset the system continuously We highly recom
17. ower DECISION Computer International 19 Operations Manual RS232 Watchdog box Mo IE o RRR I IE a a IE ID IE IE Md IE IE IE IE IE I IE HE IE IE IE IE IE IE IE IE IE IE IE CHAPTER 5 COMMAND CHECK MODE FUNCTIONS Under the command check mode the computer can send command from RS232 port to watchdog box to control watchdog Any command was sent to watchdog box it will refresh watchdog timer In the following we will introduce command format and functions 5 1 Command Format The command is a 6 bytes format its format is 0x01 command code p1 p2 p3 0x02 1 The first byte is 0x01 to let watchdog interpretes next byte command code will be described in the next section 3 pl p2 p3 are parameters for extend purpose In this version only send 0 to these parameters 4 The end of command is 0x02 When watchdog box receives command it will reply one or more bytes to computer depends on what command is issued its format is response data response data can be e 0x01 is the ACK response it means OK O 0x07 is invalid command O Others return code depending on command mra a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a sen 20 DECISION Computer International Operations Manual RS232 Watchdog box Mo lo I IE a I I IE I Ml I Ml IE IE I IE IE IE IR IE IE IE IE I IE IE I I IE o I 5 2 Command Functions There are 8 functions that
18. watchdog box can accept COMMAND DESCRIPTION 0x20 ACK 0x21 Version number 0x22 Enable watchdog 0x23 Disable watchdog 0x24 Reset PC now 0x25 Reset PC in 10 secs 0x26 Turn of power control bocx 0x27 Turn on power control box 1 ACK 0x20 Send ACK to the watchdog It will reset watchdog timer Watchdog reply 0x01 2 Version number 0x21 This command will return version of watchdog firmware Watchdog reply version number 0x01 3 Enable watchdog 0x22 This command will enable the watchdog Watchdog reply 0x01 4 Disable watchdog 0x23 This command will disable the watchdog Watchdog reply 0x01 A DECISION Computer International 21 Operations Manual RS232 Watchdog box RRR I IE a RRR IE IE Md IE IE I IE IE I IE IE IE IE IE I IE IE IE IE IE IE IE 5 Reset PC now 0x24 This command will reset PC and power control box after watchdog receives command Watchdog reply 0x01 6 Reset PC in 10 secs 0x25 This command will reset PC and power control box after 10 secs when watchdog receives command Watchdog reply 0x01 7 Turn on power module 0x26 This command will turn on power control box Watchdog reply 0x01 8 Turn off power module 0x27 This command will turn off power control box Watchdog reply 0x01 A a a a a a a a a a a a aa 22 DECISION Computer International Operations Manual RS232 Watchdog box Mo lo I lo I I I IE a Il I Ml a IE I Ml IE I
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