User Manual

Siemens Building Technologies VISONIK DCS Functions and System Messages VVS18 CM2U8567E / 04.1999
Landis & Staefa Division Function CB 2-23
2.6 CB Central COLBAS Tasks
Depending on specific project disk structuring there is a pre-defined number of up to 40
VISONIK COLBAS Tasks (TSK1 to TSK40) in the Server.
The individual Tasks (called TASK or TSK in the following text) can be called up through
Function CB.
–
VISONIK Tasks (TSK1 to TSK40) and PRV/BPS/EKL COLBAS Tasks (TSK1 to
TSK199) can be programmed by the user.
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Some VISONIK Tasks are used by LANDIS & GYR COLBAS programs, depending
on the relative VISONIK system configuration. Such Tasks should not be re-
programmed by the user.
–
VISONIK Server and substation Tasks are completely independent from each other.
2.6.1 Initial Access to Function CB
In Function CB the system responds first with Monitor Task, TSK0. This is a special
Task in that it occupies no memory space. Therefore, no programs can be written in
TSK0.
All other Tasks (TSK1 to TSK40) can be called up through TSK0. For example, if a Task
is to be edited, it is selected as follows:
ctrl/P
T2 08:03:44 Function =PNT : CB
TSK0 : Monitor
TSK0 : TSK11
TSK11 : Editor
The called Task responds with its prompt and waits in Editor mode for further
instructions
Only "inactive" Tasks may be called up, i.e. the relative TSK1 to TSK40 must be
stopped before selection.
2.6.2 Exit from Function CB
Exit from Function CB or from a Task in Editor mode is made by input of either Ctrl/P or
Ctrl/E. Both these commands terminate the Function CB.
If command EXIT is used to leave a Task which is in Editor mode the system returns to
Monitor Task TSK0.
Note