Siemens SINUMERIK 840D sl Function Manual

Basic logic functions: Various NC/PLC interface signals and functions (A2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
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Detailed description
2
2.1 NC/PLC interface signals
2.1.1 General
NC/PLC interface
The NC/PLC interface comprises the following parts:
• Data interface
• Function interface
Data interface
The data interface is used for component coordination:
• PLC user program
• NC
• HMI (operator components)
• MCP (Machine Control Panel)
Data exchange is organized by the basic PLC program.
Cyclic signal exchange
The following interface signals are transferred cyclically, i.e. in the clock grid of the OB1, by
the basic PLC program:
• NC and operator-panel-front-specific signals
• Mode groupspecific signals
• Channelspecific signals
• Axis/spindlespecific signals

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based