WDT-01 Intelligent Watchdog Timer card with terminal Board and 1 meter cable

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Mã sản phẩm: WDT-01

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Watchdog Timer:
Software programmable from 0.01 second to 167772.15 seconds.
Temperature Monitor:
Temperature:0°C-75°C;
Precision:+-1°C;onbord 2 digital LED display; Warming temperature Setting:50°C,60°C,70°C 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:

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:

	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

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.