HEIDENHAIN TNC 150 B Mounting Instructions page 27

4. External data input/output
. During development of the TNC 150, great emphasis was given to shop floor-programming, therefore we have
deviated from the standard (DIN 66025) with regard to program-entry. (E.g. no G-functions need to be
programmed).
Nevertheless, programs can be compiled on an external terminal (to reduce standstill-time of machines).
4.1 V.24 Interface
The TNC 150 possesses a V.24 (RS-232-C)-compatible Data-input/-output. This Data-in/output permits
connections of a HEIDENHAIN-Magnetic tape unit ME 101 or ME 102.
Other peripheral units (i.e. paper tape , punch/reader, teleprinter, printer) can be connected to the TNC 150 if
they have a V.24 compatible connection. (Peripheral units with a 20 mA-interface cannot be connected).
4.2 Input of the Baud rate
The transmission rate for external data units is automatically set at 2400 Baud - providing no other rate has
been programmed. (Adapted to ME 101 and ME 102).
If a peripheral unit with a different Baud rate is connected to the TNC 150 (without interconnection of an
ME 101 or ME 102), the Baud rate of the TNC 150 must be re-pr-ogrammed. Refer to the following instructions:
Select auxiliary mode "MOD" w
Press
q
or
q
repeatedly until the programmed Baud rate is displayed.
Enter new Baud rate (possible values: 110, 150,300,600, 1200, 2400 Baud)
Press @ for transfer into memory.
0
If the control with empty or missing buffer batteries is switched off, the programmed Baud rate is erased. With
new switch-on, the Baud rate is automatically re-set to 2400 Baud.