Siemens SINUMERIK 840D sl Function Manual

Detailed description
2.4 Frames
Basic logic functions: Axes, coordinate systems, frames (K2)
128 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.4.11 Positions in the coordinate system
The setpoint positions in the coordinate system can be read via the following system
variables. The actual values can be displayed in the WCS, SZS, BZS or MCS via the PLC.
There is a softkey for actual-value display in MCS/WCS. Machine manufacturers can define
on the PLC side, which coordinate system corresponds to the workpiece coordinate system
on their machines. The HMI requests the appropriate actual values from the NCK.
$AA_IM[axis]
The setpoints in the machine coordinate system can be read for each axis using the
variables $AA_IM[axis].
$AA_IEN[axis]
The setpoints in the settable zero system (SZS) can be read for each axis using the
variables $AA_IEN[axis].
$AA_IBN[axis]
The setpoints in the basic zero system (BZS) can be read using the variable $AA_IBN[axis].
$AA_IW[axis]
The setpoints in the workpiece coordinate system (WCS) can be read using the variable
$AA_IW[axis].

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