Siemens SINUMERIK 840D Function Manual

Detailed description
2.6 Interface structure
Basic logic functions: PLC Basic program powerline (P3 pl)
42 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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Figure 2-7 Interface between PLC and axes/spindles/drives
2.6.3 Interface PLC/HMI
General
The following groups of functions are required for the PLC/HMI interface:
• Control signals
• Machine operation
• PLC messages
• PLC status display
Control signals
Some control signals are signal inputs from the machine control panel, for example, which
have to be taken into account by the HMI software. This group of signals includes, for
example, display actual values in MCS or WCS, key disable, etc. These are exchanged via a
separate HMI interface data block (DB19).

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