HEIDENHAIN TNC 335 Technical Manual - Manual (Page 249)

4-152
TNC 360 9 Touch Probe 8/95
An error message "Touch point inaccessible" appears if the maximum measuring range (MP6130) is
exceeded. Machine parameters MP6140 and MP6150 have no function with the probing cycles in
the "Manual" and "Electronic Handwheel" modes.
The probing sequence must be enabled by the PLC with marker M2503. This marker is set by the
NC after a probing cycle starts and the NC waits until the PLC resets marker M2503 before
executing the probing function.
A number of conditions are transferred to the PLC with markers M2022 to M2072. This information
can be processed further in the PLC program. The probing function is controlled entirely from the
NC.
In all modes when the stylus is deflected and marker M2502 is set, the controller stops the
machine. (This only applies for TS 120!). If M2502 is not set, the controller only detects stylus
deflection if the probing function has started. This is why HEIDENHAIN recommend setting marker
M2502 as soon as the touch probe is in the spindle.
The machine parameter MP7411 determines whether, during execution of the TOUCH PROBE block
the current compensation data for touch probe length and radius is taken from the tool file or from
the probe calibration process. MP7411 is also effective for the tool length compensation in the
digitizing cycles.
MP6010 Selection of the touch probe system
Input: 0 or 1
0 = TS 120
1 = TS 511
MP6120 Probing feed rate
Input range: 80 to 30 000 [mm/min]
MP6130 Maximum measuring range
Input range: 0.001 to 99 999.999 [mm]
MP6140 Setup clearance above measuring point
Input range: 0.001 to 99 999.999 [mm]
MP6150 Rapid traverse in probing cycle
Input range: 80 to 30 000 [mm/min]
MP7411 Compensation data for TOUCH PROBE block
Input: 0 or 1
0 = Compensation value from the calibration process
1 = Compensation value from the tool file