5. Each Component Function
76
User’s Manual
General-purpose I/O
The BOX-PC is equipped with three general-purpose isolated signals each for input and output in the
RAS connector. The input signals can also be used for interrupt input or remote reset input.
Specifications
[ Input ]
-
Input specifications
:
Current-driven input by opto-coupler isolation.
-
Input resistance
:
4.7k
Ω
-
Input signal count
:
3 [One of them can be used for remote reset and interrupt input.
(bit2<fixed>)]
-
Input protection circuit
:
Equipped with a reverse-connection protection diode
-
Input response time
:
Less than 100
µ
sec
-
External circuit power supply :
12 to 24VDC (±10%)
[ Output ]
-
Output specifications
:
Open-collector output by opto-coupler isolation.
-
Output rating
:
Max. 30VDC, 100mA
-
Output signal count
:
3 [One of them can be used for WDT alarm output.
(bit2<fixed>)]
-
Output response time
:
Less than 300
µ
sec
[ Common ]
-
I/O addresses
4000h and 4001h
How to Use General-purpose I/O and Remote Reset
Output data to port 4001h to set PI2 mode.
...
Event output
control
Implement input and output with port 4000h.
...
I/O
Figure 5.10. How to Use General-purpose I/O and Remote Reset
