Siemens SIMATIC RF650R Configuration Manual page 86

Configuring with the WBM
6.3 The menu items of the WBM
To lock the memory areas, two bits are used. These bits can also be combined with each
other. Depending on the memory area this has the following different effects:
Table 6- 27
Write protection
Table 6- 28
write protection
Example
To ensure that the EPC-ID cannot be modified by every user, you need to lock it. First assign
an access password (≠ 00000000) and then lock memory bank "1" (EPC). You also need to
lock the access password in memory bank "0" (access password) to make sure that no one
can read out the access password and then change the EPC-ID with it.
Figure 6-21
86
Memory bank "1" (EPC) and memory bank "3" (USER)
Permanent
-- --
-- ✓
✓ --
✓ ✓
Memory bank "0" (kill/access password)
Read/ Permanent
-- --
-- ✓
✓ --
✓ ✓
Example of locking the EPC-ID
Description
The associated memory area can be written in both the open
status and in the protected status.
The associated memory area can be written to permanently in
both the open and in the protected status and must not be pro-
tected.
The associated memory area can only be written to in the protect-
ed status.
The associated memory area cannot be written to in any of the
statuses.
Description
The associated password memory area can be read and written to
in both the open and in the protected status.
The associated password memory area can be permanently read
and written to in both the open and in the protected status and
must not be protected.
The associated password memory area can be read and written to
only in the protected status.
The associated password memory area cannot be read or written
to in any of the statuses.
Configuration Manual, 10/2015, C79000-G8976-C386-03
SIMATIC RF650R/RF680R/RF685R