DEUTSCHMANN AUTOMATION UNIGATE IC - LONWorks, Инструкция по эксплуатации

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30.9.20 Instruction manual UNIGATE
®
IC - LONWorks (62) V. 2.5 32
Deutschmann Automation GmbH & Co. KG LONWorks
A SNVT includes information on the type, resolution and size. The LonMark association defines
objects that are used for a specific application as a group of SNVT's. Please consider that the
customer can also define network variables as not standard and that they are generally called
network variables or NVs.
9.3.1 Implementing the network variables into the UNIGATE
®
-LONWorks
A LONWorks-node is application-specific - which means that it is impossible to have one univer-
sal group of network variables for all kinds of different applications. For that reason the
UNIGATE
®
-Lon has to be pre-configured with a fixed group of network variables, that might be
required for a certain kind of application.
9.3.2 Installation
The network variables can be connected with the nodes by means of an installation tool. This
bonding connects the network variables between different nodes. As soon as the bonding is
completed, the installation tool can be taken from the net. During the installation time every node
receives a unique net identity. Fro more information on LONWorks please read LONWorks-tech-
nology data from Motorola or the LONWorks documentation from Echelon.
9.3.3 Technical data (characteristics) for LONWorks
Technical transmission Free topology (FTT-10A) twisted pair cable, transmission rate 78 kbits/s
Max. bus length Bus up to 2000 m (with bus intensifiers)
Max. node-to-node distance 500 m
Max. number of nodes 32.385 nodes divided into 127 nodes/subnet 255-subnets/domain
Kinds of data Peer to peer Communication