Specifications

Chapter 13 - Digital Input/Output Module (DIO)
142 Adept MV Controller User’s Guide, Rev C
13.1 Introduction
The Adept Digital I/O module is an opto-isolated 64-channel digital I/O module with 32
input channels and 32 output channels. It is a 6U VME slave module designed in full
conformance with the ANSI/IEEE specification. See the optional V
+
Language User’s Guide
for information on digital I/O.
There is also digital I/O capability on the SIO module: 12 input and 8 output channels. See
section 7.6 on page 85 for details.
13.2 Connections and Indicators
➊
þPass/Fail LED’s. The green Pass LED indicates the module
has passed start-up checks and is ready to operate. The red
Fail LED indicates a system failure has been asserted.
➋
P1 Input connector, for 16 Group 1 and Group 2 digital input
signals.
➌
P2 Input connector, for 16 Group 3 and Group 4 digital input
signals.
➍
P3 Output connector, for 16 Group 1 and Group 2 digital
output signals.
➎
P4 Output connector, for 16 Group 3 and Group 4 digital
output signals.
13.3 Inputs
The 32 input channels are arranged in four groups of eight. Each group is electrically
opto-isolated from the other groups and from the VMEbus circuitry. The eight inputs
within each group share a common ground.
The inputs are accessed through the two 26-pin D-sub Input connectors on the front of the
module. Each connector provides access to two input groups. Each group requires 10 pins:
8 Input signals and 2 Ground references. An input is turned on by providing a positive
potential on its input pin relative to the ground pin of its group. This type of input is
considered “sinking”, that is, to turn it on, current must flow into the input pin.
I
N
P
U
T
S
O
U
T
P
U
T
S
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N
P
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O
U
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DIO
FAIL PASS
P1
P2
P3
P4
➊
➋
➌
➍
➎
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