Digital Input Card0 pages

Digital Input Card
5622
Digital Input Card Datasheet
Introduction
The 16-channel opto-isolated digital input card reads inputs at a nominal 24V DC. The input circuit detects
both pull-up and pull-down signals. The inputs are arranged in two banks of eight, each with a separate
common terminal. Pull-up and pull-down signals may be mixed on the same card by separating the signals
between the two banks. LED’s are provided for a visual indication of input state.
2
The unit links to the I C Bus connector on a VM-1 Application Board. Up to four of these cards may be
attached to the bus (depending on how many other digital-channel-based cards are also used). Another four
may be attached if appropriate driver devices are substituted. See More than one card below for more
information.
4.0 mm
84.0 mm
78
23
901
3.5 mm
0 : 128
2 : 144
4 : 160
6 : 176
456
SW1
PL4
5V
GND
SCL
SDA
PL3
I2C
5V
LDA
LCL
GND
PL2
LIC
63.5 mm
83.5 mm
ø 3.5 mm
4.0 mm
0 1 2 3 4 5 6 7 CA 0 1 2 3 4 5 6 7 CB
91.5 mm
9.5 mm
WARNING: Users of Micro-Robotics Control Equipment should be aware of the possibility of a system failure, and must consider the
implications of such failure. Micro-Robotics Ltd. can accept no responsibility for loss, injury, or damage resulting from the failure of our
equipment. Use of our products in applications where their failure to perform as specified could result in injury or death is expressly
forbidden.
Copyright 2002-2006 Micro-Robotics Ltd
The Old Maltings
135 Ditton Walk
Cambridge
CB5 8QB
Doc D011 V20060403
tel: +44 (0) 1223 523100
fax: +44 (0) 1223 524242
sales@microrobotics.co.uk
www.microrobotics.co.uk
Digital Input Card
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