8 – 28 HEIDENHAIN Technical Manual TNC 426, TNC 430
8.5 Saving/Reading Files
The table lists all the files that can be saved to external memory and read back
in from them.
To write to or read from machine parameter files, compensation tables or PLC
files, you must enter the correct code numbers with the MOD function:
You can output the current values of Q parameters, PLC error messages and
dialogs over the RS-422/V.11 and RS-232-C/V.24 interfaces.
(NC program: FN 15: PRINT).
During transmission with a Block Check Character (BCC), each device outputs
and receives the correct file code.
File File extension File code
NC program in HEIDENHAIN dialog .H H
NC program in ISO format .I D
Tool table .T T
Pallet table .P L
Datum table .D N
Machine parameters .MP M
Compensation table .COM V
Compensation assignment .CMA S
PLC program .PLC P
Text file .A A
Pocket table .TCH R
Help files .HLP J
Point table .PNT U
PLC error table .PET F
System file .SYS O
Cutting data table .CDT –
Freely definable tables .TAB –
Motor table (asynchronous motors) .ASN –
Motor table (synchronous motors) .SN –
Motor table (servo amplifiers) .AMP –
Error file .JOU –
OEM cycles .CYC .DES .PIC .ELE –
Oscilloscope recordings .DTA –
Network settings .N00 .M00 .P00 –
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