Siemens SINUMERIK 840D sl Function Manual

Detailed description
2.3 Coordinate systems
Basic logic functions: Axes, coordinate systems, frames (K2)
44 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.3.4 Additive offsets
Zero offsets external
The "zero offset external" is an axial offset. Unlike with frames, no components for rotation,
scaling and mirroring are possible.
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Figure 2-17 Zero offset external between BCS and BZS
Setting the offset values
The offset values are set:
• PLC
By describing system variables
• Via the operator panel
From menu "Current zero offsets"
• NC Program
By assigning to system variable $AA_ETRANS[axis]
Activation of the offset values
The 0/1 edge of the following PLC signal activates the previously defined offset values:
DB31, ... DBX3.0 (accept external zero offset)
The 0/1 edge change is only evaluated in Automatic operating mode.

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