Reference Manual

Turbo PMAC/PMAC2 Software Reference

Turbo PMAC Program Command Specification 447

Examples:

X10

M1==1 ; Set Output 1 at start of actual blending to next move.

X20

M60==P1+P2

M(Q5000)==0

See Also:

How Turbo PMAC Executes a Motion Program, Synchronous Variable Assignment (Writing and

Executing Motion Programs)

Program Commands I{data}=, P{data}=, Q{data}=, M{data}=, M{data}&=, M{data}|=,

M{data}^=.

M{data}&={expression}

Function: M-Variable Synchronous And-Equals Assignment

Type: Motion program (PROG and ROT)

Syntax: M{data}&={expression}

where:

 {data} is a constant, or an expression in parentheses, for an integer value from 0 to 8191

representing the M-variable number;

 {expression} is a mathematical expression representing the value to be ANDed with this M-

variable.

This command is equivalent to M{data}=M{data}&{expression}, except that the bit-by-bit AND

and the assignment of the resulting value to the M-variable do not happen until the start of the actual

execution of the following motion command. The expression itself is evaluated when the program line is

encountered, as in a non-synchronous statement.

Note:

This command may not be used with any of the thumbwheel-multiplexer forms of

M-variables (TWB, TWD, TWR, or TWS), or with any of the double-word forms

(L, D, or F).

Remember that if this M-variable is used in further expressions before the next

move in the program is started, the value assigned in this statement will not be

received.

Examples:

M20&=$FE ; Mask out LSB of byte M20

M346&=2 ; Clear all bits except bit 1

M(P3+2)&=$55