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
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Figure 2-6 PLC/NC channel interface
PLC/axis, spindle, drive signals
The axis-specific and spindle-specific signals are divided into the following groups:
• Shared axis/spindle signals
• Axis signals
• Spindle signals
• Drive signals
The signals are transmitted cyclically at the start of OB1 with the following exceptions:
Exceptions include:
INC-Mode of HMI, axial F-value, M-/S-value
.
An axial F value is entered via the M, S, F distributor of the basic program if it is transferred
to the PLC during the NC machining process.
The M and S value are also entered via the M, S, F distributor of the basic program if an S
value requires processing together with the corresponding M value (M03, M04, M05).

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