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Serial communication Chapter 9
Data communication
2.6.2 Design
An optical serial interface with LON protocol enables the terminal to be part of a Substation
Control System (SCS) and/or Substation Monitoring System (SMS). This interface is located at
the rear of the terminal. The hardware needed for applying LON communication depends on the
application, but one very central unit needed is the LON Star Coupler and optic fibres connecting
the star coupler to the terminals. To communicate with the terminals from a Personal Computer
(PC), the SMS 510, software or/and the application library LIB 520 together with MicroSCADA
is needed.
2.6.3 Setting parameters
Path in local HMI: Configuration/TerminalCom/LONCom/NodeInfo/AddressInfo
These parameters can only be set with the LNT, LON Network Tool. They can be viewed in the
local HMI.
Table 151: Setting parameters for the LON communication
Path in local HMI: Configuration/TerminalCom/LONCom/NodeInfo
These parameters can only be set with the LNT, LON Network Tool. They can be viewed in the
local HMI.
Table 152: LON node information parameters
Path in local HMI: Configuration/TerminalCom/LONCom/SessionTimers
Parameter Range Default Unit Parameter description
DomainID 0 0 - Domain identification number
SubnetID 0 - 255
Step: 1
0 - Subnet identification number
NodeID 0 - 127
Step: 1
0 - Node identification number
Parameter Range Default Unit Parameter description
NeuronID 0 - 12 Not loaded - Neuron hardware identification number in
hexadecimal code
Location 0 - 6 No value - Location of the node
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