Controller In "Nonoperated State; Safety Concept; Setting Levels And Access Rights - Siemens RVD110 Basic Documentation

Block skip function
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The value set will be adopted
• when selecting the next operating line, that is, by pressing a line selection button
or
• by pressing an operating mode button
If entry of --.- or --:-- is required, setting button
quired display appears. Then, the display shows constantly --.- or --:-- .
The operating lines are grouped as blocks. To select an individual operating line in a
block as quickly as possible, the other lines can be skipped. This is made by using 2
button combinations:
Procedure
Keep depressed and press
Keep depressed and press

22.1.4 Controller in "nonoperated state"

The controller assumes the "nonoperated state" when, during the last 8 minutes, none
of the buttons has been pressed or, previously, one of the operating mode buttons has
been pressed.
In the "nonoperated state", the time of day and all actual values can be viewed by pres-
sing the setting buttons
those on operating line 161. Any active limitations are indicated by
the priority. They can be retrieved on operating line 169.
When switching on again after a power failure, the display always shows the time of
day. Then, the display selected last will reappear.

22.1.5 Safety concept

The safety concept offers 3 choices to protect the controller against tampering:
•
The functions or setting of the function block "Locking functions" are locked on the
software side. These locking functions can be overridden (for details, refer to the next
subsection)
•
Locking on the hardware side can negate overriding the locking on the software side
(for details, refer to section 19.9 "Locking on the hardware side")
•
The fixing screws on the controller front are of the countersunk type. The holes can
be protected by a seal, which will be destroyed when removed

22.1.6 Setting levels and access rights

The operating lines are assigned to different levels. Assignment and access are as
follows:
Basic Documentation RVD110, RVD130
22 Handling
or
Effect
Selects the next higher block
Selects the next lower block
and . The codes of the actual values are identical with
must be pressed until the re-
or depending on
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