Opto 22 (Digital I/O) Interface; External Connections - VersaLogic VSBC-8 Reference Manual

Opto 22 (Digital I/O) Interface

Opto 22 (Digital I/O) Interface
The VSBC-8 includes a 16-channel digital I/O interface. The digital lines are grouped as two 8-
bit bi-directional ports. The direction of each port is controlled by software, and each signal is
pulled-up to +5V with a 10K ohm resistor.
The 24 mA source/sink drive and short protected outputs are an excellent choice for industrial
TTL interfacing, or they can be used to interface directly (plug compatible) with standard opto-
isolated modular I/O racks.
E C
XTERNAL ONNECTIONS
Note! The digital signals on connector J10 are shared with the analog input interface.
42 – Reference
Table 24: Digital I/O Connector
J10 Signal
Pin Name Function
13 NC No Connection
14 GND Digital Ground
15 NC No Connection
16 GND Digital Ground
17 DIO0 OPTO 22 Module 15
18 GND Digital Ground
19 DIO1 OPTO 22 Module 14
20 GND Digital Ground
21 DIO2 OPTO 22 Module 13
22 GND Digital Ground
23 DIO3 OPTO 22 Module 12
24 GND Digital Ground
25 DIO4 OPTO 22 Module 11
26 GND Digital Ground
27 DIO5 OPTO 22 Module 10
28 GND Digital Ground
29 DIO6 OPTO 22 Module 9
30 GND Digital Ground
31 DIO7 OPTO 22 Module 8
32 GND Digital Ground
33 DIO8 OPTO 22 Module 7
34 GND Digital Ground
35 DIO9 OPTO 22 Module 6
36 GND Digital Ground
37 DIO10 OPTO 22 Module 5
38 GND Digital Ground
39 DIO11 OPTO 22 Module 4
40 GND Digital Ground
41 DIO12 OPTO 22 Module 3
42 GND Digital Ground
43 DIO13 OPTO 22 Module 2
44 GND Digital Ground
45 DIO14 OPTO 22 Module 1
46 GND Digital Ground
47 DIO15 OPTO 22 Module 0
48 GND Digital Ground
49 PWR +5V Rack Power*
50 GND Digital Ground
* Optional. Refer to jumper V4 on page 15.
VSBC-8 Reference Manual