246 Glossary
Trident Planning and Installation Guide
SRO Module Solid-State Relay Output Module.
system Set of components which interact under the control of a design.
TCP/IP Transmission Control Protocol/Internet Protocol (TCP/IP) are protocols for the
transport and network layers of the OSI network model. TCP/IP provides reliable,
sequenced data delivery.
time sync Triconex Time Synchronization protocol.
transient fault Fault or error resulting from a temporary environmental condition.
TMR Triple-Modular-Redundant architecture, which allows the system to achieve fault
tolerance. The complete system is triplicated; each of the three identical systems is
called a channel. Each channel independently executes the application in parallel
with the other channels.
Trident State-of-the-art programmable logic and process controller that provides a high
level of fault tolerance.
trip Safety-related shutdown of the controlled process, or a portion of the controlled
process.
TriStation 1131 TriStation 1131 is a Windows NT-based developer’s workbench for writing and
downloading applications and for performing maintenance and diagnostics on
Triconex systems.
TriStation
protocol
Master/slave protocol used by a TriStation for communication with the system.
The TriStation protocol supports a maximum of 10 systems, but each master can
communicate with only one slave at a time.
TSAA Triconex System Access Application (TSAA) protocol is a master-slave protocol
in which the master (an external host) communicates with one or more slaves over
an open network. TSAA supports a maximum of ten controllers.
TÜV Rheinland Technischer Überwachungs-Verein in German or Technical Supervisory
Association in English. In Germany, TÜV Rheinland is an authorized technical
inspection agency for a wide variety of products, processes, installations, plants,
and equipment. In addition, the agency is authorized to carry out statutory
inspections and acceptance tests by more than 25 other countries.
UDP/IP User Datagram Protocol/Internet Protocol (UDP/IP) are protocols for the Transport
and network layers of the OSI network model. UDP/IP provides best-effort
datagram delivery.
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