Technical information

OPTO DIO Reference Opto IN24
Figure 6-10. Opto In24 Memory Map._________________________________
BASE ADDRESS DEFAULT DEFAULT IN24
OFFSET ADDRESS ADDRESS PORT REGISTER SELECTED
0000 READ 030C Hex 780 Dec PORT 0 PORT A INPUT PORT A
0001 READ 030D Hex 781 Dec PORT 1 PORT B INPUT PORT B
0002 READ 030E Hex 782 Dec PORT 2 PORT C INPUT PORT C
0003 R/W 030F Hex 783 Dec PORT 3 WATCH DOG ENABLE REG
READ TO REFRESH WATCHDOG
Opto IN24 Input Specification.___________________________
Number Of Port Input Lines...........................................................24
Input Logic level HIGH.............................................2.4 - 24.0 Volts
Input Logic level LOW..............................................0.0 - 2.38 Volts
Absolute Maximum Input Voltage........................................35 Volts
Maximum Input Current One In Line High..............7.25 mA at 24V
Maximum Input Current All In Lines High...............175 mA at 24V
PC Power Requirements................................................ 80 mA at 5V
Optical Isolation.......................................................... +/- 2500 Volts
Length x Height Of Card............................................. 6.2 x 4.2 inch.
All Inputs Reverse Polarity Connection Protected.
Page 74 Chapter 6