Festo Controller CECC
76
P
Package: All of the configuration and expansion files that are required to make a specific controller
(target system) usable for the Codesys programming environment are combined in a package.
PLC: Programmable logic controller.
T
Target system ID: Unique device type code. Projects can only be uploaded to controllers if the set
device type matches.
TCP: Transmission Control Protocol; protocol for data transport and backup.
TCP/IP: Combination of the protocols TCP and IP, the most-widely used protocol in communication
via Ethernet.
U
UDP: User Datagram Protocol; a minimal, connection-free network protocol that has a lower protocol
overhead compared to TCP. This protocol has the advantage of a faster exchange of data.
Correct transmission must be monitored (e.g. by a user program) due to the absence of feedback.
User data: Telegram data without protocol frame data. The length of the user data is defined in the
configuration of the field bus slave.
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