Kingfisher Plus+ Hardware Manual
14. COMBINATION IO MODULES
Combinational IO modules provide digital and analogue IO in a single module. They can be
installed in any 4, 6, or 12 slot backplane.
IO-2: Combinational Digital IO Module
14.1.1 Overview
• 8 SPST relay outputs
• Digital inputs
This module can be installed in any slot of a 4, 6 or 12 slot backplane.
Digital Inputs
The digital inputs are designed to be powered using an external power supply. A wide range
of digital input devices can be used such as push buttons, limit switches and electronic
proximity switches. Current through an input (in either direction) results in a logic 1 in the
status register. Power to operate the field devices must also be supplied by the user.
Digital Outputs
The output points are arranged in one group of eight points with one common. The output
switching capacity of each output is 2 amps. The relay outputs can control a wide range of
load devices such as motor starters, solenoids and indicators. Power for the internal relay
circuits is provided by the +12 V
DC
bus on the backplane. The user must supply the AC or
DC power to operate the field devices. An internal fuse protects the relay contacts should
ratings be exceeded.
Hardware Manual Version 7.16
http://www.servelec-semaphore.com/
Page 197
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