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SBC Software
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SBC S-Web Technology
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Communication &
interaction
Communication & interaction
Functions for Wide Area Automation
FBoxes for sending emails
FBoxes are available for sending emails using the application program. It is possible to send
alarm, status and text messages. Sending file attachments (e. g. log data) is also supported.
Connection and availability with PCD3.WAC or external GPRS modem
Local networks are often connected to the Internet via a router. The router settings can be used
to specify the availability and security options. Controllers with an integrated GSM/GPRS modem
have the problem that the GPRS network operator often no longer issues fixed public
IP addresses. One option for preventing the dynamic issuing of the IP address is the DynDNS
service. This service now makes it possible to reach controllers using a fixed name. The service
is controlled directly via FBoxes in the application program.
Diagnostic tools
The controller uses so-called “lifechecks” to check at periodic intervals whether the Internet still
exists. If the connection has been interrupted, e.g. in the case of GPRS network disturbances,
the controller is able to re-establish the connection to the Internet.
Other diagnostics parameters independently monitor the communication e.g. to avoid roaming
costs.
FBoxes for modem communication
Communication via GSM, PSTN or ISDN modems is supported via a comprehensive FBox library.
SMS messages can be sent and received.
Security
When setting upWide Area Networks via the public Internet, the topic of security must also be given consideration. Installations
and systems should be protected against unauthorised access with a password. Sensitive data must sometimes also be encrypted
before transmission. Effective access protection should also be considered within a closed company network.
Saia PCD® controllers include a basic security function. For example, communication interfaces and individual functions can
be deactivated. Access to the automation server (web server, FTP server, etc.) can be protected with a simple password login.
It is the responsibility of the programmer to make use of these protective functions. They are simple basic functions. Highly secure
protective functions are implemented using external, specially designed communication components and devices such as routers
and firewalls. Today’s commercially available routers have suitable protective mechanisms in addition to the normal communication
functions, e.g. access protection with user administration, firewalls, encryption and protected VPN (Virtual Private Network) connections.
When connecting PCD controllers to the Internet, it is recommended using routers with suitable protective functions
and configuring them according to the security requirements.
