Siemens SINUMERIK 828D Programming Manual page 450

Other information
15.4 Addresses
Modal/non-modal addresses
Modal addresses remain valid with the programmed value (in all subsequent blocks) until a
new value is programmed at the same address.
Non-modal addresses only apply in the block, in which they were programmed.
Example:
Program code
N10 G01 F500 X10
N20 X10
Addresses with axial extension
In addresses with axial extension, an axis name is inserted in square brackets after the
address. The axis name assigns the axis.
Example:
Program code
FA[U]=400
Fixed addresses with axial extension:
Address
AX
ACC
FA
FDA
FL
IP
OVRA
PO
POS
POSA
450
Comment
;
; Feedrate F from N10 remains active until a new feedrate
is entered.
Comment
; Axis-specific feedrate for U axis.
Meaning (default setting)
Axis value (variable axis programming)
Axial acceleration
Axial feedrate
Axis feedrate for handwheel override
Axial feedrate limitation
Interpolation parameter (variable axis programming)
Axial override
Polynomial coefficient
Positioning axis
Positioning axis across block boundary
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Fundamentals