3.10.1
Digital I/O
The system has 6 slots for I/O boards, 5 if Winchester memory is included. Each digital I/O
board has 16 inputs divided into two groups of 8, and 16 outputs divided into two groups of
8. Each group is intended for supply from 24 VDC. The groups are galvanically isolated and
can be supplied from a separate voltage as long as the potential relative to system ground is
not too high, or all groups may be supplied from the cabinet 24 V I/O supply.
3.10.2
Technical data for each group of 8 channels
Inputs: Optoinsulated
Rated voltage 24 V DC + 45%, -20%
Input current at rated voltage 5.5 mA
Min. 15 V gives "1", closed input
Max. 5 V gives "0", open input
Outputs: Optoinsulated, current sourcing, short-circuit protected
Rated voltage 24 V DC +45%, -20%
Max. load capacity per output 200 mA
Max. load capacity for the complete group of 8 outputs 1A
Voltage drop in amplifier max. 2.5 V
An active signal (output set to 1) means that current is sourced.
3.10.3
Numbering of digital I/O
Under "I/O USE" it is possible to choose between "PREDEF" and I/O MAP
1
.
NOTE! When you push PREDEF and the BREAK/ACTIVE, you will have the predefined in-
and outputs activated. When you push I/O MAP and the BREAK/ACTIVE the I/O MAP is
activated.
PREDEF
PREDEF:The I/O boards are numbered from right to left. The logical numbering is 1-128
for inputs and outputs. The relation between physical inputs/outputs and logical
inputs/outputs is not dependant on the place at which the board is located. The numbering
always begins with the first digital board irrespective of its place in the rack.
If SYSTEM-I/O and/or REMOTE CONTROL PANEL alt. ESAB I/O are defined for one or
two of the I/O boards the consequent connection between physical inputs/outputs and
logical numbering of in/outputs will be changed in accordance with the following:
• SYSTEM-I/O or ESAB I/O defined.
The logical numbering of inputs/outputs omits the physical inputs/outputs 9-16 on the
board selected.
• REMOTE CONTROL PANEL defined.
The logical numbering of inputs/outputs omits the physical inputs/outputs 1-8 on the
board selected for Remote control I/O.
To avoid jumps in the numberingthe SYSTEM I/O and/or REMOTE CONTROL
PANEL I/O should be defined on the last digital I/O board.
INSTALLATION S3
3:22
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