User Manual

CM2U8567E / 04.1999 VISONIK DCS Functions and System Messages VVS18 Siemens Building Technologies
3-100 System Messages --- DCS Messages Landis & Staefa Division
SYSIVN=xxx Centrale_IVN=yyy ==> OSV
ET41 PS 00:00:00
NAME
SYSIVN=xxx Centrale_IVN=yyy ==> OSV
->DEVINI (M.IVN)
During manufacturing, L & S provides each process station PS (PRV/BPS/EKL X) with
an individual number. This number is accessible via the system variable SYSIVN and is
also marked on the housing of the PS.
When the PS is connected to a VISONIK DC Server for the first time, the system takes
this number and saves it under the PS parameter IVN.
From now on the IVN is continually checked by the DC Server during data exchanges
with the PS. IF another IVN is received under this station address, then a controller
replacement or loss of the IVN is assumed, for example, from a long power outage.
If this happens in normal operation, (VISONIK Parameter IVN <>0), the PS is taken out
of service (OSV=YES) and tagged accordingly in the INR parameter: INR="?IVN".
IVN in a link system:
Since a partner station in a link system is also regarded as a process station, the IVN
logic is also active.
–
In PS: Set SYSIVN
See above
–
The following holds for the VISONIK DC Server:
If a data backup is available in a FILE in the DC Server, load it into the PS using
the LOFI backup operation.
Explanation
Action