Reference signal evaluation, Connecting the positioning module, 4 reference signal evaluation – HEIDENHAIN TNC 335 Technical Manual User Manual
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1.4 Reference signal evaluation
After the reference signal evaluation in the NC axes, the reference signal evaluation of the PLC axes
must be started, either automatically or (e.g. with NC switch-on) or manually with special keys. PLC
positioning is not possible until the reference signals have been evaluated.
1.5 Connecting the positioning module
The positioning module hardware is connected at the RS-422/V.11 interface with a special cable (Id.-
Nr. 265 479).
The software is connected through the PLC of the master control (TNC 407 or TNC 415). The
modules 9100, 9101, 9102, 9105 and 9106 were developed for this purpose. They make it possible
to activate the RS-422/V.11 data interface and to transmit and receive binary data.
These modules are described in Chapter 7 "PLC-programming".
The PLC program for the positioning module can be written either with the LE 234.003 itself (which
must be connected to the BE 212 visual display unit and the TE 355 A/B keyboard), or on a PC with
the PLC programming software from HEIDENHAIN.
Please contact your HEIDENHAIN representative if you have any questions regarding the PLC
programming software.