NR Electric RCS-9698G, Инструкция по эксплуатации

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Chapter 4 HMI Operation Introduction
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Figure 4.5-23 Dual Device Switching Scheme 5
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SCHEME 5 : it is dual system configuration. To IED s, both of the equipments are HOST
MACHINE s; to master station, one works as HOST MACHINE while the other one operates
as HOT STANDBY MACHINE . The two machines exchange their operation information from
each other via dual system communication channel. When the one that is used to be HOST
MACHINE falls down to be a HOT STANDBY MACHINE or out of service due to unexpected
causes or some exceptions, the other one that works as HOT STANDBY MACHINE will rise
to be a HOST MACHINE automatically. What matters is that under this scheme, the two kinds
of communication functions of the equipment to master stations and the equipment to the
IED s work independently from each other. I.e. a equipment, toward master station, it may be a
HOST MACHINE , but regarding to the IED s, it may be HOT STANDBY MACHINE . Here, the
Native Status reflects communication status between the equipment and IED s.
4.5.3.3 DUAL DEV.LINK
When the equipment is used in a dual system application, this menu item is for setting
communication channel by means of which data synchronization is done between two machines.
The selected Ethernet port is also used to receive and transmit a cyclical handshake signal (i.e.
heartbeat signal) from or to counterpart Only Ethernet port on CPU board 1 can be chosen to be
dual system communication channel. Press keys to choose desired Ethernet port. Either a
single channel or dual channel can be set to be data synchronization channel in dual system
application.
Figure 4.5-24 Dual System Communication Channel Selection
When the equipment is applied as a stand-alone system, CHANNEL1 and CHANNEL2 can be set