User Manual

In the exception program, too, the exceptions are created, modified or deleted by using
the navigation and editing keys. It is possible to define exception days (e.g. a bank
holiday) as well as exception periods (e.g. holiday periods).
Click the EXCEPTIONS field to display a list of all programmed exceptions.
The PXM20-E operator unit provides the user with five channels for trend logging,
enabling 5 data points to be logged.
There are three separate ways of viewing the trend data:
• Graphical view: In this view all the values of a trend data point stored in PXM20-E
will be displayed graphically
• Online graphical view: In the online view the values will be displayed in a graphical
and dynamic manner, i.e. in real time.
• List: In place of a graphic view, the values can be displayed in list form
Press the info key to switch to info mode. In this info mode two different kinds of
information can be called up:
• Pressing the info key a second time displays general information for the currently
displayed object (e.g. complete path, clear text of object).
• Pressing a direct access key in info mode displays information for the object or value
on the selected line.
Exit the info mode by pressing any key.
• Login by entering password with string editor
• Display and operation in accordance with user privileges
• Definition of user privileges during engineering of Desigo PX configurations
• Login always referenced to a site
• Alarms
– Alarm display depends on user privilege
– Alarm handling in accordance with user privileges
• Logout
If no operator activities are carried out within a set period the device switches off
automatically and the display is turned off.
Pressing any key activates the device automatically again and the background lighting
of the display is switched on.
When the operator unit is delivered the language is set to English. The language setting
can be changed internally.
Online trend
Info concept
Access protection
Auto logout
and sleep mode
Language versions
4/8
Siemens Operator unit PXM20-E CM1N9234en_04
Building Technologies 2015-01-06