HEIDENHAIN TNC 306 Technical Manual - Manual (Page 190)

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TNC 406/TNC 306 6 Display and operation 4 3/97
6.12 Memory test
A machine parameter can be used to select if the RAM and the EPROM memory areas should be
tested upon switching on the control.
MP7690 Memory test at switch-on
Entry: 0 to 3
Bit 0 RAM-test
+ 0 = Memory test at switch-on
+ 1 = No memory test at switch-on
Bit 1 EPROM-test + 0 = Memory test at switch-on
+ 2 = No memory test at switch-on
6.13 New program start/End of program run
If a new program is started, marker M2060 is set.
If the end of the program is reached in operating modes "Program run/single block" or "Program
run/full sequence", the NC sets marker M2061. This marker is only reset at the start of the next
program.
The information "End of program" can be evaluated by the PLC. This is necessary when operating,
for instance, with a pallet-changer.
Set Reset
M2060 A new program is started NC PLC
M2061 END PGM, M02 or M30 has been executed NC NC
6.14 Restore position
The reapproach function can be started with the following key sequence:
TEST, PGM-NR, NR, ENT, UP TO, BLOCK NUMBER, ENT, PROGRAM RUN, NC START.
During the Test Run mode marker M2059 is set by the NC. If the TNC is then switched to Program
Run mode (full sequence or single block), marker M2059 is reset by the NC.
If the reapproach is now activated with NC-START, marker M2019 is set by the NC. The marker is
reset by the NC, when the reapproach position is reached.
Set Reset
M2019 Reapproach activated with NC-START NC NC
M2059 TNC in Test Run mode NC NC