Key Lock And Write Protection; Table 7-2 Meaning Of The Hart Lock Modes - Siemens SITRANS P300 Operating Instructions Manual

Operating functions via HART

7.13 Key lock and write protection

7.13 Key lock and write protection
Introduction
You can use this function to lock the keys or activate write protection to safeguard the saved
parameters.
Lock options
You have the following lock options on the pressure transmitter:
Table 7-2
Lock mode
0
LA
LO
LS
LL
See also
Locking keys (Page 6-29)
Releasing key or function lock (Page 6-30)
7-20
Meaning of the HART lock modes
Meaning
The device can be operated by means of the keys and HART communication.
Keys on the transmitter are locked.
Exception:
Releasing key lock
•
The device can be operated by means of HART communication.
Keys on the transmitter are partially locked.
Exception:
Setting zero point
•
Releasing key lock
•
The device can be operated by means of HART communication.
Keys on the transmitter are partially locked.
Exception:
Setting zero point
•
Setting limit point
•
Releasing key lock
•
The device can be operated by means of HART communication.
Write protection
You can now only release the lock using HART communication.
SITRANS P300 with HART communication
Operating Instructions, 06/2005, A5E00359579-02