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Figure A-2 – Opto-isolated Outputs
The signal “OUT[x]" is one of the isolated digital outputs where x stands for the digital output
terminals.
The OPTO-COMMON needs to be connected to an isolated power supply. The OUT[x] can be used to
source current from the power supply. The maximum sourcing current for the OUT[x] is 25 ma.
Sinking configuration can also be specified. Please contact Galil for detail.
When opto-isolated outputs are used, either a pull-up or pull-down resistor needs to be provided by the
user depending upon whether the signal is sinking or sourcing.
64 Extended I/O of the DMC-1415/1416/1425 Controller
The DMC-1415/1416/1425 controller offers 64 extended I/O points, which can be interfaced to
Grayhill and OPTO-22 I/O mounting racks. These I/O points can be configured as inputs or outputs in
8 bit increments through software. The I/O points are accessed through two 50-pin IDC connectors,
each with 32 I/O points.
Configuring the I/O of the DMC-1415/1416/1425 with DB-14064
The 64 extended I/O points of the DMC-1415/1416/1425 series controller with the DB-14064 daughter
board module can be configured in blocks of 8. The extended I/O is denoted as blocks 2-9 or bits 17-
80.
The command, CO, is used to configure the extended I/O as inputs or outputs. The CO command has
one field:
CO n
Where, n is a decimal value, which represents a binary number. Each bit of the binary number
represents one block of extended I/O. When set to 1, the corresponding block is configured as an
output.
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Appendices
DMC-14x5/6
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