Siemens SINAMICS S110 - Page 566

Communication
9.2 Communication according to PROFIdrive
Function Manual
564 Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Bit Name Signal status, description
12 Reserved -
1 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
13 Transmit absolute value
cyclically
0 No acknowledgement
1 Parking encoder active (i.e. parking encoder switched off) 14 Parking encoder
0 No active parking encoder
1 Error from encoder or actual-value sensing is active.
Note:
The error code is stored in Gn_XIST2.
15 Encoder error
0 No error is active.
Encoder 1 actual position value 1 (G1_XIST1)
● Resolution: Encoder lines ∙ 2n
n: fine resolution, no. of bits for internal multiplication
The fine resolution is specified via p0418.
● 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.
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Figure 9-11 Subdivision and settings for Gx_XIST1
● Encoder lines of incremental encoder
– For encoders with sin/cos 1Vpp:
Encoder lines = no. of sinusoidal signal periods
● 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.