Reference Manual

PMAC 2 Software Reference

346 PMAC Program Command Specification

S{data}

Function

Spindle data command

Type

Motion program (PROG and ROT)

Syntax

S{data}

where:

• {data} is a constant or expression representing the value to be passed to the storage

variable for later use.

Remarks

This command causes the value in {data} to be loaded in variable Q127 for the

coordinate system executing the motion program. It takes no other action. It is intended

to pass spindle speed data in machine tool programs. The algorithms that actually control

the spindle would then use Q127 in their routines (e.g., to set jog speed, or voltage

output).

Note:

This command is distinct from S{data} information passed as part of a

subroutine call through a READ(S) command. In this form, the value is

placed in Q119 for the coordinate system.

Example

S1800 ; This puts a value of 1800 in Q127

S(P1) ; This puts the value of P1 in Q127

G96 S50 ; Here the S-term is an argument in the G-code call

(PROG 1000) ; This is the subroutine that executes G96

N96000 READ(S) ; This puts a value of 50 in Q119