Network, data security, policies, passwords
PMX A4354-2.2 HBM: public 129
10.2 Data security
To minimize the risk of data security violations, we re
commend taking the following organizational and tech
nical measures for the system on which your applications
are running:
Avoid exposing the PMX and controller networks to open
networks and the Internet. Adopt additional safety
precautions to prevent this, such as a VPN for remote
access, and install firewall mechanisms.
The controller programming ports in particular must never
be vulnerable to unprotected access from the Internet.
The PMX ports used can be found in section 10.1.
Limit access to authorized persons, change any default
passwords and access rights that may exist when starting
up the system for the first time, and at regular intervals
thereafter. The procedures for changing PMX passwords
and policies can be found on the PMX web server in the
dialogs "Change password" and "Define policies", also
see section 10.3.
10.3 Policies definition and passwords
10.3.1 Policies definition
There are 3 levels to PMX policies definition: OPER
ATOR, MAINTENANCE and ADMINISTRATOR. The
PMX settings can only be displayed or changed if you are
at the MAINTENANCE or ADMINISTRATOR user level.
At the OPERATOR user level, only the OVERVIEW,
some SYSTEM SETTINGS and MONITORING (the LINE
WRITER) are accessible. Select the user level with
.
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