ICP DAS USA PCI-P16R16 Benutzerhandbuch

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2 .    Hardware applications 
Model Number 
OUTPUT 
Input 
PCI-P8R8 / PCI-P16R16  Relay Output 
Optical isolation 
PCI-P16C16 Transistor 
Output 
(Open collector) 
Optical isolation 
PCI-P16POR16 PhotoMos 
Relay 
Output Optical 
isolation 
 
 
 
 
 
2.1      Relay Output 
•  For PCI-P8R8 / PCI-P16R16 Only 
Whenever data is written data to the output control register, the relays will 
switch to NC or NO as specified by the control code. A`1'in the control 
register will energize the corresponding relay. The relay will switch from COM to 
NO (normally open ). A `0' in the control register will turn off the 
corresponding relay and the relay will be switch from COM to NC (normally 
closed). The control register powers-on in NC mode. A hardware reset signal or 
programmable reset signal will also turn the relay to NC!! 
The following figures show how to use the relay. 
 
 Basic Circuitry: (Current Rating < 0.3 A):  
 
 
 
 
 
 
 
 
 
 
 
 Figure 2-1. Basic Relay Circuit. 
 Load 
AC/ DC 
Power Supply 
COM NO 
Relay Contact 
PCI-P8R8/P16R16/P16C16/P16POR16 User’s Manual  (Ver.2.2, 2005/5/5) …
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