DTM434 DTM435
34
9.2.6.1 Example
The data range 0x34 to 0x38 is to be transferred to the ID tag.
Object directory
Index
Sub-index
Name (object)
Value
0x2380
0x00
Write start of the address
(start of the address range on
the ID tag to be written)
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"
(OV 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 (OV 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).
Object directory
Index
Subindex
Name (object)
Value
0x2480
0x00
Lock start of the address
(start of the address range on
the ID tag to be locked)
0x04
0x2481
0x00
Write length (length of the
memory range on the ID tag
to be locked)
0x08
0x2482
0x00
ID tag lock trigger
0x01
9.2.8 Error codes during SDO transfer
SDO transfers are acknowledged transfers. If there is an error during transfer or during actions caused
by the transfer, an error is signalled after the SDO transfer.
SDO error code
Description
Possible cause
0x05030000
Toggle bit unchanged.
0x05040000
SDO protocol expired.
