ADLINK Technology ND-6021, User Manual

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1-6 Initialization & Installation
Another safety fucntion is the watchdog. Whenever the host is loss
contact with the remoted NuDAM module, or the micro-processor is
down, the module will reset itself and send the safety value to the
analog output therefore the industry safety is guarantee. The safety
value / power-up value can be set by configuration software.
Features of NuDAM-6024
•
4 channel bipolar analog output
•
Programmable host watchdog timer for host failure protection
•
Internal watchdog timer for device failure protection
•
Easy programming by software
•
Easy installation and wiring
Specifications of NuDAM-6024
²
Interface
•
Interface : RS-485, 2 wires
•
Speed (bps) : 1200, 2400, 4800, 9600, 19.2K, 38.4K
²
Analog Output
•
Channel numbers : 4
•
Singal Output type: Differential output
•
Voltage Output:
±
10V
•
Resolution: 12-bit resolution
•
Accuracy:
±
1/2 LSB
•
Gain Drift:
±
5ppm/
°
C
²
Digital Input
•
Channel numbers : 7
•
Logical level 0: +2V max.
Logical Level 1: +3.5V ~ +30V
²
Isolation
•
Isolation voltage: 5000 Vrms
²
Watchdog Function
•
Module internal watchdog timer : 150 ms
•
Power failure threshold : 4.65 V
•
Host programmable watchdog : 100 ms ~ 25.500 sec
²
Power
•
Power supply : +10V to +30V
•
Power consumption : 2.5W