HEIDENHAIN TNC 335 Technical Manual - Manual (Page 549)

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TNC 360 5 Data transfer by PLC 8/95
5 Data transfer by PLC
Using PLC modules (for description see Chapter "PLC programming", Section "PLC modules"), data
can be transferred by the PLC via the RS-232-C/V.24 or RS-232-C/V.24 data interface. These
modules, for example, permit communication between two logic units at PLC level via the interface.
5.1 Configuration of PLC data interface
When data is transmitted by the PLC, use of the interface is inhibited by the input/output program of
the user interface. The user has the possibility of configuring the PLC interface according to the FE
or ME mode, or to configure it freely.
The appropriate control characters and the data format for EXT are set in the machine parameters,
which are described in detail in Section "Freely configurable interfaces". In addition, the baud rate for
transfer can be selected via MP5040.
MP5040 Data transfer rate for PLC interface
Input range: 0 to 9
0 = 110 baud
5 = 2400 baud
1 = 150 baud 6 = 4800 baud
2 = 300 baud 7 = 9600 baud
3 = 600 baud 8 = 19 200 baud
4 = 1200 baud 9 = 38 400 baud