Data exchange mode, Table 16, Data exchange 32-bits – HEIDENHAIN PROFIBUS-DP (DPV0) User Manual
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Encoder and Gateway functionality, DPV0
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5.5
Data transfer in normal operation (DDLM_Data_Exchange)
The DDLM_Data_Exchange mode is the normal status of the
device when operated. In this mode the position value is
transmitted from the device in a cyclic manner. Output data can
also be sent to the device i.e. preset commands.
5.5.1
Data exchange mode
The actual position value is transferred to the master as 32-bit
values (double word) or optional, the device supports
a position value length of 16-bit for singleturn encoder. The
position value is right-aligned in the data field.
DDLM_Data_Exchange mode
Standard configuration:
Octet
1
2
3
4
Bits
31-24
23-16
15-8
7-0
Data
2
31
-2
24
2
23
-2
16
2
15
-2
8
2
7
-2
0
Data_Exchange -32 bits
Table 16
Data exchange -32-bits
Configuration data:
Device class 1: D1hex 2 input data words, data consistency
Device class 2: F1hex 2 input data words, 2 output data words for
preset value, data consistency