User Manual

CM2N8886en / 26.02.01 Siemens Building Technologies
2/2 Landis & Staefa Division
The VISONIK BPS has two protective mechanisms against unauthorized operation:
access protection and access timeout. These are described in the following:
Mechanism Function and features
Access
protection
Access protection prevents unauthorized access to the VISONIK
BPS. It is divided into three hierarchical operating levels with
corresponding access rights. A password is allocated to each
operating level (KEY1 to KEY3).
The person responsible for the system sets up access protection.
Access timeout An access timeout of approx. 60 seconds has been set at the
factory to protect the VISONIK BPS from unauthorized access if no
logoff has taken place.
This becomes active when:
– No operator input has taken place.
– The VISONIK BPS has made no output to the operator unit.
Once the timeout has elapsed, the VISONIK BPS is only accessible
through login with valid password.
The VISONIK BPS can only be operated with active access protection after the
following login sequence has been carried out:
Entry Result
HELLO <CR>
KEY: Password <CR>
The VISONIK BPS acknowledges the entry of a valid
password with its system number, indication of the operating
level, and the date and time. The operator now has access to
the functions allocated to the corresponding operating level.
After the password has been entered, the menu-guided
operating program opens the main menu.
If operators want to block access again right away, or if no access timeout has been set
up, they must log off with:
Entry Result
BYE <CR>
Once BYE has been entered, the VISONIK BPS is only
accessible again through a login with HELLO andavalid
password.
If menu-guided operation is used, logoff is accomplished via the menu command Q (for
quit) from the main menu.
The VISONIK BPS reacts to the following entries with appropriate messages according
to the access protection function:
– Incorrect password.
– Operating task busy.
– Access timeout elapsed.
– Access attempt after timeout.
– Unauthorized operation at a particular level.
The POP card sets have been programmed for individual users so that any one set only
includes those points to which that particular user should have access.
Refer to the following documents for more information on this topic:
Document No. Title
CM2B8301E BPS User’s Guide
CM2T8567E VISONIK System Basics (expert documentation)
Functions
Access protection and
timeout
Login
Logoff
BPS access behavior
POP card operation
Additional information
 2001 Siemens Building Technologies Ltd.