WAGO 750 Series Manual page 179

Router
Connects neighboring subnets, the router operating with addresses and
protocols of the third ISO/OSI layer. As this layer is hardware independent,
the routers allow transition to another transmission medium.
To transmit a message the router evaluates the logical address (source and
destination address) and finds the best path if there are several possibilities.
Routers can be operated as repeaters or bridges.
Routing
Method of selecting the best path over which to send data to a distant
network.
S
SCADA
Abbreviation for Supervisory Control and Data Acquisition. SCADA
software is a program for the control and visualization of processes.
Segment
Typically, a network is divided up into different physical network segments
by way of routers or repeaters.
Server
Device providing services within a client/server system. The service is
requested by the Client.
Service
An operation targeted at an object (read, write).
SMTP
Short form for „Simple Mail Transfer Protocol". Standard protocol, with
which E-mails are sent away in the internet.
SOAP
Short form for "Simple Object Access Protocol". XML is a standard for
Meta data, the access on the XML objects takes place via SOAP.The
standard defines, how transactions via internet and XML can be done and
how dynamic Web services over distributed networks can be used.
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
Glossary • 173