BIS V-6108 PROFINET
Processor Unit
66
english
7
Device Functions
57
hex
: Lock
The Lock command can block read or write access, as well as access of any kind, to memory
areas (RES, EPC, TID, USER) of a UHF data carrier. Depending on the level of security, the
memory areas can be password protected or completely blocked. The Mask and Action fields
specify which memory areas receive a new Lock Status and how these should appear. Using Bit
Masks allows the Lock Status of multiple memory areas to be changed at the same time.
Note
In order to successfully execute the Lock command, it is necessary to first provide the
correct Access Password for the data carrier via a Write Parameter command.
Passwords (Access and Kill) are stored in the
Reserved
memory area.
Mask:
Bit Mask (16-Bit), used to determine which memory area of the selected data
carrier should be processed with respect to its Lock Status.
0: Memory area is not affected by the
Action
field
1: Memory area is affected by the
Action
field
Action:
Bit Mask (16-Bit), used to determine how the Lock Status of the respective
memory areas should be changed.
The Lock Status can be set for individual memory areas by setting or resetting
the
Lock
and
Permalock
bits.
Bit No.
7
6
5
4
3
2
1
0
Memory
area
Access
PW
Access
PW
EPC
EPC
TID
TID
USER
USER
Mask[0]
Mask
Mask
Mask
Mask
Mask
Mask
Mask
Mask
Action[0]
Lock
Perma-
lock
Lock
Perma-
lock
Lock
Perma-
lock
Lock
Perma-
lock
Bit No.
15
14
13
12
11
10
9
8
Memory
area
Not used
Kill PW
Kill PW
Mask[1]
Mask
Mask
Act ion[1]
Lock
Perma-
lock
Lock Status of the
EPC, TID
and
USER
memory areas:
Lock
Permalock
Lock Status
0
0
Read and Write:
No Password
0
1
Read and Write:
No Password
(State can no longer be changed)
1
0
Read:
Write:
No Password
Access Password
1
1
Read:
Write:
No Password
Access Password
(State can no longer be changed)
Specific
commands for
BIS VU read/write
heads
