Siemens SINUMERIK 840D sl Function Manual page 692

K2: Axis Types, Coordinate Systems, Frames
10.4 Coordinate systems
MD30455 $MA_MISC_FUNCTION_MASK, bit 9 = 1
Note
PRESETON deactivated
Activation of the "Actual value setting without loss of the referencing status PRESETONS"
function deactivates the "Actual value setting with loss of the referencing status PRESETON"
function. The options mutually exclude each other.
Programming
Syntax
PRESETONS(<axis_1>, <value_1> [, <axis_2>, <value_2>, ... <axis_8>,
<value_8>])
Meaning
PRESETONS:
<axis_x>:
<value_x>:
System variable
$AC_PRESET
The axis-specific system variable $AC_PRESET provides the vector from the zero point of the
currently offset MCS' to the zero point of the original MCS
axis.
$AC_PRESET<axis> = $AC_PRESET<axis> + "current actual position of the axis in the MCS"
- "PRESETONS actual position"
The work offset can be undone with the system variables:
PRESETONS(<axis>, $VA_IM + $AC_PRESET[<axis>]) ; "current actual
position of the axis in the MCS'" + "offsets"
Example
Work offset of the X axis MCS by 70 units.
692
Actual value setting with loss of the referencing status
Preprocessing Yes
stop:
Alone in the block: Yes
Machine axis name
Type: AXIS
Range of values: Machine axis names defined in the channel
New current actual value of the machine axis in the machine coordinate
system (MCS)
The input is made in the active system of units (inch/metric)
An active diameter programming (DIAMON) is taken into account
Type: REAL
after the referencing of the machine
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Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions