User Manual

Siemens Building Technologies VISONIK DCS Functions and System Messages VVS18 CM2U8567E / 04.1999
Landis & Staefa Division Function VE 2-357
2.35 VE Verification of Data Files
It is practically unavoidable that, at some stage during the operation of a VISONIK
System, inconsistent data will occur in the process image and in various program
Registers or in the internal memory.
The causes of 'corrupted' data can be:
–
Faulty hardware
–
Software errors
–
Unexpected or illegal events of any kind.
Inconsistent data as a result of event handling is ignored by the system and, in most
cases, can be reconstructed by repetition. Such situations are part of the normal daily
running of a system and do not present any great danger.
Problems can arise when, for some reason, wrong data is deposited in the system's
data registers or existing data is incorrectly modified.
Normal running of programs can be disturbed through such stored "faults".
Function VE can be used to check all, or even selected data registers in VISONIK, for
correct organisation, consistency, completeness and optimum access through the
associated programs.
As far as possible any detected errors are corrected and the relative index lists updated
to the latest state. Data sets which cannot be repaired are printed out and finally
removed from the associated register.
Function VE is used to check data sets for the above mentioned criteria after takeover
from old to new software versions or to other projects.
2.35.1 Initial Access and Handling
Initial access is through input of Ctrl/P and then by specifying the abbreviation "VE".
Further operations may then be carried out as listed below:
ctrl/P
T1 15:22:16 Function =PNT : VE
Verification of Data =*: ?
0 *= All Data Files
1 FSG= Colour Pictures
2 IM= PointInformation
3 UAL= User Addr. List
4 UML= U.Addr.Mask List
5 REA= Reac. Registers
6 SPL= Maximum Demand
7 PAR= Point Parameters
8 DM = Data Procesing
9 TTW= Term. Work Area
Verification of Data =*: _
When 'Verification' is running absolutely N O inputs can be given, such as Ctrl/P,
etc.!!!