Output Of The Tool Number With Fixed Pocket Coding; Output Of The Pocket Number With Variable Pocket Coding - HEIDENHAIN TNC 426 PB/M Technical Manual

Table of Contents

Output of the tool

number with fixed

pocket coding

Output of the

pocket number

with variable

pocket coding

Tool pocket number

Strobe signal T code (P code) with

Strobe signal T code (P code) with

Acknowledgment of T code (P code)

with TOOL CALL

Acknowledgment of T code (P code)

with TOOL DEF

Tool number zero programmed

Geometry of the tool from W264

T and G strobes with TOOL CALL

For fixed pocket coding of tools you must evaluate the tool number:

With MP7480.x, specify when the tool number is to be transferred.

• With every TOOL CALL or TOOL DEF block: MP7480.x = 2

• When changing a tool number: MP7480.x = 1 During execution of a TOOL

CALL or TOOL DEF block the tool number is saved in W264 (W262 is not

• For MP7480.x = 5 or 6: The pocket number is saved in W262. The

assignment of tool and pocket number in the pocket table does not

With variable pocket coding (MP7480.x = 3 or 4) the pocket number of the

called tool is transferred to the PLC and the assignment of tool and pocket

number is changed in the pocket table. The current tool number is additionally

saved in W264. The NC takes over responsibility for variable pocket

If you have set M4542, the assignment of tool and pocket numbers in the

pocket table does not change, although variable pocket coding was selected.

You set this marker, for example, during a block scan (except if MP7681

In MP7261, enter the number of tools with pocket number. The maximum

input value is the number of the pockets in the tool magazine.

In the tool table you can define more tools than can be held by the tool

magazine (MP7260 > MP7261). If a tool number is programmed for which no

pocket was defined, during a TOOL CALL the pocket number –1 (W262) is

transferred and M4523 is set.

During programming of TOOL DEF the tool and pocket numbers are

transferred. A TOOL DEF for a manual tool has no relevance for the PLC.

HEIDENHAIN Technical Manual TNC 426, TNC 430