ABB UNITROL 1010 Programmable Voltage Regulation Module
a gear wheel for example, andaccumulates this data to an accuracy
of +_0.01% over 20Hz to 20KHz.
Output values to 12 bit resolution can
provide voted and validated data to
field devices for control (see analogue
output module for output circuit
operation).
Communications Module
A four channel serial communications
module is always fitted to a Triguard
SC300E TMR system to allow
communications to the engineering
workstation and is installed in I/O slot
number 10 of the main chassis. All
four channels operate RS232423 up
to 19.2 kbits/sec and all four
communication ports are fully isolated.
The four channel communications
module is directly addressed by the
three Triguard SC300E processors and
contains a micro-computer that
controls the four programmable
multi-protocol ports. Data received
from the three processors is voted
2oo3 providing correct data for
onward transmission.
High speed network
connectivity feature (to be
released)
Triguard may be interfaced to standard
communications networks such as
Ethernet/TCP/IP using approved
gateway products.
DCS connectivity includes:
• Yokogawa Electric, Elsag-Bailey,
Fisher Rosemount, ABB, Honeywell
and Foxboro

Hot Repair Facility
A quick repair procedure, once any
fault is revealed, is important in the
total fault tolerant product strategy.
The hot repair facility achieves a quick
and easy repair by the user and this is
All I/O modules can be programmed
for a hot repair facility. A wrong or
faulty module in an allocated hot
repair I/O slot will not be accepted.
Hot repair slots are selected to be
next to the system I/O resident
module.
Field Termination Cards
The types of termination cards
available:
• 16 channel – digital input
• 32 channel – digital input
• 16 channel – digital output