Reference Manual

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PMAC 2 Software Reference

PMAC On-Line Command Specification 203

move; it simply assigns a new value to the position..

Internally, a position bias register is written to which creates this new position offset. PSET

is the equivalent motion program command.

Example

X=0 ................... ; Call axis X’s current position zero

Z=5000 ; Re-define axis Z’s position as 5000

See Also

Axes, Coordinate Systems (Setting Up a Coordinate System)

On-line command Z

Program commands PSET, ADIS, IDIS.

B{constant}

Function

Point the addressed coordinate system to a motion program.

Scope

Coordinate-system specific

Syntax

B{constant}

where:

• {constant} is a floating point value from 0.0 to 32767.99999 representing the

program and location to point the coordinate system to; with the integer part representing

the program number, and the fractional part multiplied by 100,000 representing the line

label (zero fractional part means the top of the program).

Remarks

This command causes PMAC to set the program counter of the addressed coordinate system

to the specified motion program and location. It is usually used to set the program counter to

the Beginning of a motion program. The next R or S command will start execution at this

point.

If {constant} is an integer, the program counter will point to the beginning of the

program whose number matches {constant}. Fixed motion program buffers (PROG) can

have numbers from 1 to 32,767. The rotary motion program carries program number 0 for

the purpose of this command.

If {constant} is not an integer, the fractional part of the number represents the line label

(N or O) in the program to which to point. The fractional value multiplied by 100,000

determines the number of the line label to which to point (it fills the fraction to 5 decimal

places with zeros).

Note:

If a motion program buffer (including ROTARY) is open when this

command is sent to PMAC, the command is entered into the buffer for

later execution, to be interpreted as a B-axis move command.

Example

B7 ...................... ;points to the top of PROG 7

B0 ...................... ;points to the top of the rotary buffer

B12.6 ............... ;points to label N60000 of PROG 12

B3.025R ;points to label N2500 of PROG 3 and runs