Siemens SINUMERIK 808D ADVANCED

4
Parameter Manual
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
329
Detailed descriptions of interface signals
4.1 General information
Interfaces
The PLC user interface exchanges signals and data with the following units via the PLC user
program:
• NCK (NC kernel),
• HMI (display unit)
Signal and data are exchanged via different data areas.
The PLC user program need not take care of the exchange which is performed automatically
from the user's view.
Figure 4-1 PLC user interface
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Siemens Controls