Pstat Change Enable For Parameters - Siemens FM 458-1 DP Manual

Communication blocks

2.4.5 PSTAT Change enable for parameters

Symbol
Device status ―I
Brief description
I/O
Current password:
PSW
If password PSW does not coincide with the PWi values, then this corresponds to access level
0: this does not permit any change.
If password PSW coincides with a value of PWi, then this corresponds to access level i and all
lower access levels.
In access level 8, there are no access authorizations as a result of the access level (all other
access restrictuions, e.g. using the device status, are retained).
(Default: 0)
PWi Appropriate password for access level i (password i):
(Default: 0)
STE Actual "device status": There are 16 statuses.
Permissible entry range: 1 to 16
(Default: 1)
2-40
PSTAT
Password ―I PSW
Level 1 ―I PW1
Level 2 ―I PW2
Level 3 ―I PW3
Level 4 ―I PW4
Level 5 ―I PW5
Level 6 ―I PW6
Level 7 ―I PW7
Level 8 ―I PW8
STE
Using the function block, the following can be realized
• a current device status can be configured,
• the access level can be defined by entering a password,
• the device status and the access level is used to define whether a
parameter may be changed.
The statuses and access level, in which a parameter is to be inhibited or
enabled, are defined using the PLIM function block.
Function block PSTAT may only be configured once in each FM module.
WLV W ― Access level
WST W ― Device status
YTS W ― Status display
Function Blocks - FM 458-1 DP
Edition 12.2004