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3 pre-assigned q parameters – HEIDENHAIN TNC 407 (280 580) User Manual User Manual

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12-17

12

Tables and Overviews

TNC 425/TNC 415 B/TNC 407

12.3 Pre-assigned Q Parameters

The Q parameters Q100 to Q113 are assigned values by the TNC. These
values include:

• Values from the PLC
• Tool and spindle data
• Data on operating status etc.

Values from the PLC: Q100 to Q107

The TNC uses the parameters Q100 to Q107 to transfer values from the
PLC to an NC program.

Tool radius: Q108

The current value of the tool radius is assigned to Q108.

Tool axis: Q109

The value of the Q parameter Q109 depends on the current tool axis.

Tool axis

Parameter value

No tool axis defined

Q109 = –1

Z axis

Q109 =

2

Y axis

Q109 =

1

X axis

Q109 =

0

Spindle status: Q110

The value of the parameter Q110 depends on the last programmed M
function.

M function

Parameter value

No spindle status defined

Q110=

–1

M03: Spindle ON, clockwise

Q110=

0

M04: Spindle ON, counterclockwise

Q110=

1

M05 after M03

Q110=

2

M05 after M04

Q110=

3

Coolant on/off: Q111

M function

Parameter value

M08: Coolant on

Q111 =

1

M09: Coolant off

Q111 =

0