HEIDENHAIN PROFINET - Manual (Page 42)

PROFINET IO data description
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4.6 Format of G1_XIST1 and G1_XIST2
The G1_XIST1 and G1_XIST2 signals consist of the absolute posi-
tion value in binary format. By default the G1_XIST1 signal is equal
to the G1_XIST2 signal. The format of the actual position values in
G1_XIST1 and G1_XIST2 is shown below.
Format definition for G1_XIST1 and G1_XIST2:
• All values are presented in binary format
• The shift factor is always zero (right aligned value) for both
G1_XIST1 and G1_XIST2.
• The setting in the encoder parameter data affects the position
value in both G1_XIST1 and G1_XIST2.
• G1_XIST2 displays the error telegram instead of the position
value if error occurs.
Example:
25 bit multi turn absolute encoder (8192 steps per
revolution, 4096 distinguishable revolutions)
M = Multi turn value (Distinguishable revolutions)
S = Single turn value (number of steps per revolutions)
Figure 26
Absolute value in G1_XIST1
Figure 27
Absolute value in G1_XIST2