User Manual

CM2Z8567E / 04.1999 VISONIK DCS Functions and System Messages VVS18 Siemens Building Technologies
1-10 Quick Guide - Working in CTRL-D mode Landis & Staefa Division
PageDown, PageUp,

These keys can be used to select another parameter group in Ctrl-D mode. The
following parameter groups are possible:
•
Main parameter
•
Operating parameter
•
Configuration parameter
• •
Service parameter
CTRL+P
Entering CTRL+P starts the DCS dialogue parallel to Ctrl-D mode in the bottom half of
the screen.
CTRL+H
Entering CTRL+H allows for moving to the next higher entry hierarchy.
CTRL+K
Entering CTRL+K closes Ctrl-D mode and provides the entire screen to the DCS
dialogue.
Change warning limits of a measured value and observe data point
Parameter HIWL indicates the upper and LOWL the lower warning limit. If one of these
two limits is violated, a message appears on the terminal.
Proceed as follows to change the upper warning limit HIWL:
Step Procedure Comment
1
CTRL+D Start Ctrl-D mode
2
Enter and confirm
$52'020
Select address
3
Enter and confirm
HIWL
Select parameter
4
Enter and confirm
25
(e.g.) Enter parameter value that is
lower than the current actual
temperature value
On screen, the values (for an actual temperature of e.g. 26.4 deg. C and with HIWL=25)
are displayed as follows:
HIWL = 10 :
(10..9.99E+35)
. AI $52'020 (m9p1)
26.4 >HIWL PS
DOK-Server
AI =26.4 ALsta =2=Normal unacknowledged
SERVICE - Parameter
AERSTA=0: AICMAX=157.4 AICMIN=-47.4 AIRMAX=8191: ARC =19:
The actual temperature of e.g. 26.4 deg C thus has violated the upper warning limit
HIWL=25 which is indicated on-screen by
>HIWL
.
Commands and
functions
Example
Note