HEIDENHAIN TNC 426 PB/M Technical Manual page 635

Table of Contents

PAL/PGM W-STATUS

December 2001

With MP7683 bit 4, specify whether the active pallet table should be

editable with the EDIT PALLET soft key.

As soon as a pallet table is selected, M4160 is set.

Through the PLC you can graphically display the tool changer status in the PLC

window and enable the user to control the tool changer through PLC soft keys.

You can provide the user with excerpts from the pallet table for editing ((See

"Freely Definable Tables" on page 6 – 310)).

With Module 9035 you can interrogate the active line of the pallet file, and with

Module 9090 or 9281 you select a certain line in the pallet table. Unlike Module

9090, with Module 9281, a datum shift or datum setting can be executed

immediately.

The pallet with the name "120" is defined. The NC macro for changing the

pallet is activated. The active datum equals the machine datum. A clearance

height was programmed.

A fixture is defined and a clearance height is specified. The NC macro for

changing the fixture is active.

The fixture holds an unmachined part to be machined with NC program

"PART1.H" (workpiece-oriented machining).

The fixture holds a second unmachined part to be machined with NC program

"PART2.H" (tool-oriented machining).

The active datum is offset from the pallet datum by the given values.

The pallet with the name "130" is defined. The NC macro for changing the

pallet is activated. The active datum is offset from the machine datum by the

given values. The datum table "DATUM1.D" is active.

Lines 5 and 6:

The pallet holds two unmachined parts which are to be machined together in

one setup with NC programs "PART3.H" and "PART3B.H" (tool-oriented

machining). The active datum of the first part is offset from the pallet datum

by the given values.

Display and Operation