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saia-pcd.com
PG5
RS-485
Ethernet
Ethernet
RS-485
Visi.Plus
Communication & Interaction
Networks for Wide Area Automated Systems
PCD controllers support the connection to the WAN (Wide Area Network) via all established telecommunication technologies. The IP-
based protocols (automation servers) are used to connect direct to the Internet either wired via Ethernet interfaces and DSL broadband
routers or wirelessly with GPRS/UMTS routers. Non-IP based connections with analogue, digital (ISDN) or GSM modems are also sup-
ported. The PCD3.WAC (Wide Area Controller) allows a direct connection via the integrated analogue, ISDN or GPRS/GSM modems.
Protocols and services
The WEB/IT protocols are used to support access to the automation server functions (web/FTP server, email, SNMP, etc.). The S-Bus
protocol enables communication with the PG5 programming device, the SBC OPC server or Visi.Plus. S-Bus is also used to exchange data
between PCD controllers via the WAN.
Other IP-based protocols such as Modbus TCP and BACnet® are also supported.
Local infrastructure
2.4
Wide Area Automation with Saia PCD®
Spanning geographical distances with a larger number of substations often places significant demands on a system. The integrated
automation server can be used to combine geographically distributed systems easily using the Internet and Intranet. This allows the
systems to be monitored and controlled remotely. It is possible to access the controllers directly during commissioning or servicing.
Management level
Connection of Saia PCD® controllers to the Internet
When Saia PCD® controllers are connected directly to the internet, they are also a potential target of cyber attacks.
Appropriate protective measures must always be taken to ensure secure operation.
Saia PCD® PCD controllers include simple, integrated protection features. However, secure operation on the internet
is only ensured if external routers, like the industrial Routers EBW-E100 and EBW-H100 are used with a firewall and encrypt-
ed VPN connections.
For more information, please refer to our support site:
EBW-E100
EBW-E100
EBW-H100
VPN
