Interface configuration, 1 selection of the interface, 2 freely configurable interfaces – HEIDENHAIN TNC 306 Technical Manual User Manual
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2.5 Interface configuration
2.5.1 Selection of the interface
The following settings can be selected with the appropriate data format and the data transmission
protocol.
In addition to the freely configurable operating mode EXT (standard data transfer protocol), there is a
fixed mode FE1. The FE1 mode must be set if the HEIDENHAIN floppy disk unit or an external
computer using the TNC.EXE transmission software is connected. In this mode, the transmission
protocol with Block Check Character is rigidly defined.
2.5.2 Freely configurable interfaces
The operating mode EXT (standard transmission protocol) is freely configurable via machine
parameters.
The data format and the type of handshake are set in the MP 5020.
Data bits
Bit 0 can be set to determine whether transmission is to be with 7 or 8 data bits. Transmission with
7 bits is normally used, but for printer interfacing 8 bits are needed.