Reference Manual

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PMAC 2 Software Reference

PMAC On-Line Command Specification 221

Note:

When the executive program’s data gathering function operates, it

automatically reserves the entire open buffer space for gathered data.

When this has happened, no additional programs or program lines may

be entered into PMAC’s buffer space until the DELETE GATHER

command has freed this memory.

Example

CLOSE ............... ; Make sure no buffers are open

DELETE GATHER ; Free memory

OPEN PROG 50 ; Open new buffer for entry

CLEAR ............... ; Erase contents of buffer

... ; Enter new contents here

See Also

Buffered Commands (Talking to PMAC)

On-line commands GATHER, DEFINE GATHER, SIZE

DELETE LOOKAHEAD {Option 6L firmware only}

Function

Erase lookahead buffer

Scope

Coordinate-system specific

Syntax:

DELETE LOOKAHEAD

DEL LOOK

Remarks

This command erases the lookahead buffer for the addressed coordinate system, freeing the

memory for other uses. It also permits a motor to be added to, or removed from, the

coordinate system, which cannot be done while there is a defined lookahead buffer for the

coordinate system.

PMAC will reject the DELETE LOOKAHEAD command, reporting an ERR003 if I6 = 1 or 3,

if a data gathering buffer exists. An existing data gathering buffer must be erased with a

DELETE GATHER command before the lookahead buffer may be deleted.

DELETE PLCC

Function

Erase specified compiled PLC program

Scope

Global

Syntax

DELETE PLCC {constant}

DEL PLCC {constant}

where:

• {constant} is an integer from 0 to 31, representing the program number

Remarks

This command causes PMAC to erase the specified compiled PLC program. Remember that

because all of the compiled PLC programs must be downloaded to PMAC together, the only

way to restore this PLC is to download the entire set of compiled PLCs.

Only one PLCC program can be deleted in one command. Ranges and lists of PLCC

program numbers are not permitted in this command.

To perform the same function for an uncompiled PLC program, the command sequence

would be OPEN PLC n CLEAR CLOSE.

Example

DELETE PLCC 5 ; Erase compiled PLC program 5

DEL PLCC 0 ; Erase compiled PLC program 0