Glossary • 139
WAGO-I/O-SYSTEM 750
Busklemmen
RIO Function (of TOPLON
®
PRIO)
With a fieldbus coupler 750
-
319 at the front end of the node the RIO-
functionality of the plug-in TOPLON
®
PRIO can be used. On the users sur-
face appears a schedular clear list of all dertermined I/O channels, which can
be assigned with network variables.
The abbreviation RIO means "Remote I/O".
Router
Routers serve to link neighbouring subnets the router operating with ad-
dresses and protocols of the
ISI-OSI
layer 3. This layer being hardware in-
dependent, the routers are capable of making the transition to a different
transmission medium. Routers can be operated in the
Repeater
or
Bridge
op-
erating mode.
S
Segment
As a rule a network is structured by a
Router
or
Repeater
in different physi-
cal network segments.
Server
Device providing a service within a Client-Server-system. The providing
service is requested by a
Client
.
Service
An operation (Read, Write) directed on an object.
Service Pin
The service pin is a special node input/output for service purposes. It is led
to the outside on a push button and an LED and sends broadcast news with
the Neuron ID and the program ID of the Neuron chip when the push button
is actuated.
SNVT
Short form for
S
tandard
N
etwork
V
ariable
T
ypes
SNVTs [
spoken: Sniwitts
] are fixed predefined, standardized variable types for
network variables.
Several SNVTs exist, e. g. SNVT_lux, SNVT_temp, SNVT_switch, etc.
(see:
network variable
)