Siemens SINUMERIK 828D Programming Manual page 451

Extended address notation
Extended address notation enables a larger number of axes and spindles to be organized in
a system.
An extended address consists of a numeric extension and an arithmetic expression assigned
with an "=" character. The numeric extension has one or two digits and is always positive.
The extended address notation is only permitted for the following direct addresses:
Address
X, Y, Z, ...
I, J, K
S
SPOS, SPOSA
M
H
T
F
Examples:
Program code
X7
X4=20
CR=7.3
S1=470
M3=5
The numeric extension can be replaced by a variable for addresses M, H, S and for SPOS
and SPOSA. The variable identifier is enclosed in square brackets.
Examples:
Program code
S[SPINU]=470
M[SPINU]=3
T[SPINU]=7
Fundamentals
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Meaning
Axis addresses
Interpolation parameters
Spindle speed
Spindle position
Special functions
Auxiliary functions
Tool number
Feedrate
Comment
; No "=" required, 7 is a value, but the "=" character can also
be used here
; Axis X4; "=" is required
; Two letters; "=" is required
; Speed for first spindle: 470 RPM
; Spindle stop for third spindle
Comment
; Speed for the spindle, whose number is
stored in the SPINU variable.
; Clockwise rotation for the spindle,
whose number is stored in the SPINU
variable.
; Selection of the tool for the spindle,
whose number is stored in the SPINU
variable.
Other information
15.4 Addresses
451