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WDT-01/WDT-02
Intelligent Watchdog Timer Card |
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| Model: WDT-01 |
Model: WDT-02 |
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The WDT-01/WDT-02 are watchdog card that provides watchdog timer, temperature monitor and power monitor functions. It also provides many signals and mechanism such as relay control, reset signal, power-good signal that allow the user to control their system as soon as the errors are occurred. There are also many signals, such as IRQ, I/O status RS-232, LED, Buzzer, will tell the user or operator that some errors are occurred. Once the WDT-01 has been power on, it will monitor the power and the temperature of PC automatically. After the software enable the watchdog timer, the WDT-01 will monitor the operations of software and hardware in the most inexpensive cost with the excellent protections. The WDT-02 is an economical version of WDT-01.Refer to the following comparison table. |
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- Toolkit for Windows DOS
- Toolkit for Windows 95/98
- Toolkit for Windows NT
- Toolkit for Windows 2000/XP
- Driver for LINUX
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- Watchdog Timer:
Software programmable from 0.01 second to 167772.15 seconds.
- Temperature Monitor:
Temperature:0¢XC-75¢XC;
Precision:+-1¢XC;onbord 2 digital LED display; Warming temperature Setting:50¢XC,60¢XC,70¢XC or none.
- Computer Power Monitor:
PC Power +5V,External Power +12V
- Transmit Message Includes:
watchdog timer state,Temperature status,Current Temperature scale, External & PC power status...etc.
- Power Required:
1.External power:+12V,3W or 2.Internal power:+12V,3W
- Printer-like I/O Interface:
LPT0(3bch),LPT1(378h),LPT(278h)or User Define, only need 3 I/O ports
- Output Signals:
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| Signal/Function |
WDT timeout |
Over Temperature |
Power failure |
| Reset |
Yes |
No |
No |
| IRQ |
Yes |
Yes |
No |
| I/O
status |
Yes |
Yes |
Yes |
| RELAY |
Yes |
Yes |
No¡@ |
| TTL |
Yes |
Yes |
No |
| LED |
Yes |
Yes |
Yes |
| RS232 |
Yes |
Yes |
Yes |
| Buzzer |
Yes |
Yes |
Yes |
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- WDT <=> Watchdog
Power failure LED display only on terminal
board.
IRQ:3,4,5,6,7,9,10,11,12,14,15
- 4 BIT TTL output:
logic high:2.4Vdc min,source 400uA.
logic low:0.5Vdc max,sink-10mA
Two Relay for watchdog or temperature
failure
Contacts:FoRM c.
Max switched current:1A 30V/dc
Max switched voltage:120Vac/60Vdc
Max carry current:1.25AC/DC
- Output Signals:
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WDT-01 |
WDT-02 |
| Software driver |
Yes |
Yes |
| on-board 7-seg LED |
Yes |
No |
| Temperature measurement |
Yes |
No |
| on board buzzer |
Yes |
No |
| Relay output for watchdog alarm |
Yes |
No |
| Relay output for temperature alarm |
Yes |
No |
| Terminal board |
Yes |
No |
| Other |
Yes |
Yes |
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- Program Example:
WDT-01 is assigned to LPT2(278) I/O address.
<CR>means Hexcode 0d
The content of Set.da files:t=4<CR>s<CR>
The content of End.da files:<CR>e<CR>
<DOS command>
type Set.da>1pt2
(set the period of the watchdog timeout,and
start counting)
type End.da>1pt2(stop watchdog counting)
Please note:If with DOS command
Copy con LPT2
the DOS will send<CR><LF>after
press ENTER key.
WDT-01 will not accept<LF>code.
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- Factory Automation
- Product Test
- Laboratory Automation
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| WDT-01 |
Intelligent Watchdog Timer card with terminal Board and 1 meter cable
Include :CA-0205(2-pin Black & Red Cable 0.5m); CA-2520(25-pin D-sub Cable 2.0m) |
| WDT-02 |
Intelligent Watchdog Timer card without terminal board,cable,buzzer relay,LED,temperature sensor
Include :CA-0205(2-pin Black & Red Cable 0.5m); CA-2520(25-pin D-sub Cable 2.0m) |
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| CA-0205 |
2-pin Black & Red cable, 0.5m |
| CA-2520 |
25-pin Male-Male D-sub flat cable, 2m |
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