Siemens SINUMERIK 840D sl Function Manual page 950

Synchronous Spindles (S3)
Data lists
14.6.4 System variables
14.6.4.1 System variables
System variables
$P_COUP_OFFS[following spindle]
$AA_COUP_OFFS[following spindle]
$VA_COUP_OFFS[following spindle]
A more detailed description of system variables can be found in
References:
/PGA1/ Parameter Manual System Variables
950
Description
Programmed offset of the synchronous spindle
Position offset for synchronous spindle (setpoint)
Position offset for synchronous spindle (actual value)
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions