54
Object directory
Index
Sub-index
Name (object)
Value
0x2380
0x00
Write start of the ad-
dress (start of the
address range on
the ID tag to be writ-
ten)
0x34
0x2381
0x00
Write length (length
of the memory range
on the ID tag to be
written)
0x03
0x2382
0x00
ID tag data (data to
be written to the ID
tag)
0x01020304
The data is transferred in one piece as domain data type. Up to a data
length of 4 bytes transfer is effected as expedited transfer; longer data
lengths as segmented transfer.
The transmitter must be able to provide the indicated data length.
9.2.7 Lock data range on the ID tag via SDO transfer
The data ranges of the ID tag can be write-protected.
The write protection of a data range cannot be removed.
The start address of the data range to be protected is stored in the object
"Address lock start point" (OD index 0x2480). In addition, the data range length is
stored in the object "Write length" (OD index 0x2481).
To activate the write protection, “1” is written on the trigger (OD index 0x2482).
The start address must be identical with the start address of a storage
block on the ID tag. The length must be a multiple of the length of a storage
block on the ID tag.
9.2.7.1 Example
The data range 0x04 to 0x0C is to be write-protected for an ID tag of block size 4
(2 blocks or 8 bytes).