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Siemens SINUMERIK 840D Programming Manual

Siemens SINUMERIK 840D
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6.5 External zero offset
Job planning
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
6-19
6.5 6.5 External zero offset
Function
This is another way of moving the zero point between the basic and workpiece coordinate
system.
Only linear translations can be programmed with the external zero offset.
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Programming
The $AA_ETRANS offset values are programmed by assigning the axis-specific system
variables.
Assigning offset value
$AA_ETRANS[axis]=RI
RI is the arithmetic variable of type REAL that contains the new value.
The external offset is generally set by the PLC and not specified in the parts program.
Note
The value entered in the parts program only becomes active when the corresponding signal
is enabled at the VDI interface (NCU-PLC interface).

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Siemens SINUMERIK 840D Specifications

General IconGeneral
SeriesSINUMERIK 840D
AxesUp to 31
ChannelsUp to 10
Operating SystemWindows-based
Power Supply24 V DC
Control Unit TypeCNC
InterfaceEthernet, PROFIBUS
DisplayTFT color display
InterpolationSpline
PLCIntegrated PLC
Data StorageCompactFlash, USB

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