3-12
Document: 553632
(ICSTT-RM448_EN_P) Issue: 08:
System Build Manual (AADvance Controller)
RS485 Half
RS485 HalfRS485 Half
RS485 Half-
--
-Duplex
DuplexDuplex
Duplex
The Half -duplex connections should be terminated with the recommended values as
shown:
System Security
System SecuritySystem Security
System Security
Serial networks are closed and local and have limited protocol functionality, therefore,
immune to any external attack except local deliberate sabotage. The AADvance
system, however, with its workstations and DCS interfaces, uses Ethernet networks
which tend to be part of a larger corporate network and can expose the system to
accidental or malicious infection or attack.
There are some simple steps that can be taken to help prevent such issues:
Network and workstation security should be considered, for example:
AADvance should not be on a network with open unsecured access to the
Internet.
The Firewall must be active on the Workstation, preventing access to the
relevant Ethernet ports on each communication interface. Anti-virus software
must be installed and be kept up-to-date.
Note: Firewalls have been known to affect the operation of the AADvance Discovery
tool
The workstation should be password protected. If the workstation is a laptop,
it should be kept locked when not in use.
If the workstation uses a hardware license USB dongle it should be kept
secure, without it the workstation will not run.
The application should be password protected.
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