Dual Function; Construction And Outline - Toshiba TC-net Instruction Manual

5. Dual Function

This chapter describes about dual function.

5.1 Construction and outline

5.1.1. Parenthood
The own node succeeds
(backs up) he talker of the
parent node.
The child node succeeds
(backs up) the talker of the
own node.
Reference:
Maximum 10 OPC Servers can exist on the sysytem.
5.1.2. At the case of two OPC Servers
When there are two OPC Servers only, the parent node is the child node.
nVCON
OPC Server
Parent node
( )
OPC Server
Parent node
(
OPC Server
Own node
(
OPC Server
Child node
(
Client Client
OPC Server
(ST1)
...
nVCON
OPC Server
Parent node
( )
)
The own node monitors
the parent node.
)
The own node is
monitored by the child
node.
)
The child node is only
one.
...
Client
OPC Server
(ST2)
...
nVCON nVCON
5. Dual Function
There are able to be
several parent nodes.
Ethernet
TC-net
67