Siemens SINUMERIK 840D Function Manual

Detailed description
2.6 Interface structure
Basic logic functions: PLC Basic program powerline (P3 pl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
37
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Figure 2-3 PLC/NCK interface
Basics
Compile-cycle signals
In addition to the standard signals exchanged between the PLC and NCK, an interface data
block for compile cycles is also generated if required (DB9). The associated signals, which
are dependent on the compile cycles, are transmitted cyclically at the start of OB1.

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB