Preassigned Q Parameters; Values From The Plc: Q100 To Q; Wmat Block: Qs; Active Tool Radius: Q - HEIDENHAIN ITNC 530 - CONVERSATIONAL PROGRAMMING User Manual

9.11 Preassigned Q Parameters

The Q parameters Q100 to Q199 are assigned values by the TNC. The
following are assigned to Q parameters:
Values from the PLC
Tool and spindle data
Data on operating status
Results of measurements from touch probe cycles etc.
Do not use preassigned Q parameters (or QS parameters)
between Q100 and Q199 (QS100 and QS199) as calculation
parameters in NC programs. Otherwise you might receive
undesired results.

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.

WMAT block: QS100

The TNC saves the material defined in the WMAT block in parameter
QS100.

Active tool radius: Q108

The active value of the tool radius is assigned to Q108. Q108 is
calculated from:
Tool radius R (tool table or TOOL DEF block)
Delta value DR from the tool table
Delta value DR from the TOOL CALL block
The TNC remembers the current tool radius even if the
power is interrupted.
342 Programming: Q Parameters