Specifications

Glossary
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subnet
A part of a network that shares a network address with the other parts of a network.
A subnet may be physically and/or logically independent of the rest of the network.
A part of an internet address called a subnet number, which is ignored in IP routing,
distinguishes the subnet.
surge suppression
The process of absorbing and clipping voltage transients on an incoming AC line or
control circuit. Metal-oxide varistors and specially designed RC networks are
frequently used as surge suppression mechanisms.
T
TC
thermocouple. A TC device is a bimetallic temperature transducer that provides a
temperature value by measuring the voltage differential caused by joining together
two different metals at different temperatures.
TCP
transmission control protocol. A connection-oriented transport layer protocol that
provides reliable full-duplex data transmission. TCP is part of the TCP/IP suite of
protocols.
telegram
A data packet used in serial communication.
TFE
transparent factory Ethernet. Schneider Electric’s open automation framework
based on TCP/IP.
Tx
transmission. For example, in a CAN-based network, a PDO is described as a
TxPDO of the device that transmits it.