Bosch Rexroth ID 40 Manual page 33

4.2.3.2 MDT pointers
There are four MDT pointers. Each pointer contains 16 bits and has a value range of
0x0000 to 0xFFFF.
Fig. 17: Pointers in MDT register area
Pointers 1 to 3 can be accessed by the user and are used to save MDT addresses.
Pointer 0 is used by the system.
This MDT address can be used in an application to determine the beginning of a data
block on the MDT. The pointer first has to be read in order to read or write the MDT
data block. The content of the pointer is then used to access the MDT data block.
4.2.3.3 MDT ID code
The MDT ID code contains a unique 32-bit number for each ID 40/MDT. The MDT ID
code cannot be edited and can only be read.
The MDT ID code allows an MDT - and thereby a workpiece pallet - to be uniquely
identified on a production line.
MDT memory structure
Pointer 0
Pointer 1
Pointer 2
Pointer 3
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