- 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:
|
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 |
|
- 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.
means Hexcode 0d
The content of Set.da files:t=4s
The content of End.da files:e
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 sendafter press ENTER key.
WDT-01 will not acceptcode.
|