Siemens Sinamics S110 Function Manual page 423

Bit Name
12 Reserved
13 Transmit absolute value
cyclically
14 Parking encoder
15 Encoder error
Encoder 1 actual position value 1 (G1_XIST1)
● Resolution: Encoder lines ∙ 2n
● Used to transmit the cyclic actual position value to the controller.
● The transmitted value is a relative, free-running actual value.
● Any overflows must be evaluated by the master controller.
Figure 9-10
● Encoder lines of incremental encoder
● After power-up: Gx_XIST1 = 0
● An overflow in Gx_XIST1 must be viewed by the master controller.
● There is no modulo interpretation of Gx_XIST1 in the drive.
Drive functions
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
Signal status, description
-
1
0
1
0
1
0
n: fine resolution, no. of bits for internal multiplication
The fine resolution is specified via p0418.
Subdivision and settings for Gx_XIST1
– For encoders with sin/cos 1Vpp:
Encoder lines = no. of sinusoidal signal periods
9.1 Communication according to PROFIdrive
Acknowledgement for Gn_STW.13 (request absolute value cyclically)
Note:
Cyclic transmission of the absolute value can be interrupted by a function
with higher priority.
See Gn_XIST2
•
No acknowledgement
Parking encoder active (i.e. parking encoder switched off)
No active parking encoder
Error from encoder or actual-value sensing is active.
Note:
The error code is stored in Gn_XIST2.
No error is active.
Communication PROFIBUS DP
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