SeaLevel DIO-32.PCI User Manual page 11

PROGRAMMING THE DIO-32.PCI, CONTINUED
DB-78 Female Pin Assignments (Card Edge Connector)
Direct Hardware Control
In systems where the user's program has direct access to the hardware (DOS) the tables that follow give
the mapping and functions that the DIO-32.PCI provides.
Reading the Inputs
The inputs are active Low. If no voltage is applied across one of the differential inputs, it returns a one on
that bit. If an AC or DC voltage is applied, it returns a zero on that bit.
© Sealevel Systems, Inc.
Bit Port A Pins
0 55,74
1 54,73
2 53,72
3 52,71
4 51,70
5 50,69
6 49,68
7 48,67
GND 39,57,58
+12V 38
+5V 56
Function Available
RD
RD
RD/WR
RD/WR
RD = Read, RD/WR = Read or Write
8004 Manual | SL9022 9/2021
Port B Pins Port C Pins
47,66 2,20
46,65 3,21
45,64 4,22
44,63 5,23
43,62 6,24
42,61 7,25
41,60 8,26
40,59 9,27
18,36,37
Port Address Hex
A Base + 0
Optically Isolated Input Port
B Base + 1
C Base + 2
D Base + 3
Port D Pins
10,28
11,29
12,30
13,31
14,32
15,33
16,34
17,35
1
19
Port Type
Reed Relay Output Port
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