What is it? A redundant controller is a
common term used in military, space
and nuclear industries to ensure Fail
Safe operation of critical processes
where human errors, wiring, sensor
or equipment failure is possible, thus
preventing loss of product, investment
or environment.
How is it done? In large and small
applications, 3 expensive and sophisticated computers are used to monitor/
control critical parameters. The TRC
is the fi rst instrument of its kind that offers redundant control at an affordable
price in a compact package dedicated
to redundant control of one (1) specifi c
parameter.
The TRC contains 3 identical isolated
channels with their own A/D, DAC, uC,
relays, Serial I/O and power supply.
The core of the TRC is the algorithm
performed by the CPU that continuously
compares the serial output of each channel to the other 2. Having all 3 channels
monitoring the signals from 3 different
sensors/transmitters at the process site
using their own isolated power source
and wiring eliminates single point
failures.
