Redundancy via SCA-RS
SICAM RTUs, SICAM AK Redundancy
Unrestricted
47
DC2-026-2.07, Edition 10.2016
1.3.1.3 Redundant AUs, Voting by SCA-RS, Distance higher than 200 m
Implemented with the third party product MOXA Nport Server:
•
SCA-RS is connected to SICAM AK via the
socket connector SYS-IO on the SICAM AK
•
Redundancy synchronization of functional
diagrams and periphery is carried out via free
selectable communication (Ethernet preferred,
select transfer as fast as possible); a separate
interface is recommended
•
The electrical connection between Ethernet
and SICAM RTUs component or between
Ethernet and MOXA-Server can be up to
100 m
•
The protocol element for redundancy
synchronization must not be placed on the
M-CPU but should be necessarily situated
on the synchronized C-CPUs
•
In this configuration only redundant
periphery is possible
•
ATTENTION: Time-critical applications are
not possible in the FUD; minimal cycle time:
1 ms
•
The MOXA Server can be supplied by the
Power Supply HSA 50S24-P from MTM
Power (item number: MTM+HSA50S24-P)
1
HSA 50S24-P
HSA 50S24-P
2
2
2
2
1
4
SCA-RS Voter
Automation unit
SICAM AK
Ethernet
Cable
CM-1820
TB cable
length 15 m
Cable
Patch cable
Cable
High speed link
FO, max. length 200 m
MOXA NPort IA5150
with power supply
MOXA NPort IA5150
with power supply
Connector
UN1373-1B
back view CM-2816
CM-1820 TB cable
UN 1373-1B
UN 1373-1B
redundancy synchronization
preferred via Ethernet
see the sections
“Redundant Basic System Elements”
“Redundant AUs in ring configurations”
“Redundant AUs in star configurations”
and
and
to the remote
peripheral elements
to the slaves
IEC 69870-5-104
Cable
FO-cable indoor
1000 DUP (max. 15 m)
2 x Connector
UN 1373-1B
