Dual-network
architectures are becoming more and more common in power substations,
which rely on complex and sophisticated networks for data acquisition
and access control. Typically, costly software development and
specialized hardware are required to manage redundant systems.
Many devices, including protection relays, controllers, switch
gears, and RTUs, still have RS-232 or RS-485 serial interfaces,
so device servers are used to integrate them into major automation
systems and enable communication with PC hosts over an Ethernet
LAN.
With this application, legacy RS-232 and RS-485 serial devices
are connected to an Ethernet network to provide advanced management
capability, and to synchronize operations between local and
remote control sites. This type of setup provides stability
and reliability for data acquisition and access control through
redundancy.
Network Requirements:
•
Connect RS-232 and RS-485 legacy serial devices to Ethernet for advanced management and synchronization from local and remote control sites
•
Redundancy is preferred to ensure exceptional stability and reliability for data acquisition
and access control
•
Network devices
with a rugged design and rackmount installation are needed for
substation automation applications
Why Moxa?
•
Dual LAN ports allow the establishment of redundant networks to access dual hosts for data acquisition, which help ensure continuous operation in the event of connection problems
•
Meters, RTUs, and other RS-232/422/485 serial devices are easy to attach and can be used by custom applications for network integration with unlimited synchronization and management options
•
Easy-to-configure and ready-to-use Real COM/TTY drivers for Windows and Linux
•
"Redundant COM"
(patent pending) operation mode for setting up a redundant LAN
