Siemens SINUMERIK 840D sl Programming Manual page 534
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Also See for SINUMERIK 840D sl:
- Function manual (2184 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
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Additional functions
13.1 Axis functions (AXNAME, AX, SPI, AXTOSPI, ISAXIS, AXSTRING)
Parameter
AXNAME
AX
SPI
n
AXTOSPI
X, Y, Z
AXSTRING
ISAXIS
SPI extensions
The axis function SPI(n) can now also be used for reading and writing frame components,
for example, for writing frames with syntax $P_PFRAME[SPI(1),TR]=2.22. The additional
programming of the axis position using the address AX[SPI(1)] = <axis position>
can be used to traverse an axis.
AXTOSPI extension
AXTOSPI can be used to convert an axis identifier into a spindle number. If the axis identifier
cannot be converted into a spindle number, an alarm message is triggered.
Troubleshooting for AXSTRING[ SPI(n) ]
For the programming with AXSTRING[ SPI(n) ], the axis index of the axis to which the
spindle is assigned will no longer be output as spindle number, but rather the string "Sn"
will be output.
Example:
AXSTRING[ SPI(2) ] returns string "S2"
Example
Move the axis defined as a facing axis.
OVRA[AXNAME("Transverse axis")]=10
AX[AXNAME("Transverse axis")]=50.2
OVRA[SPI(1)]=70
IF ISAXIS(1) == FALSE GOTOF CONTINUE
AX[$P_AXN1]=100
CONTINUE:
13-2
Converts an input string into axis identifiers; the input
string must contain a valid axis name.
Variable axis identifier
Converts the spindle number into an axis identifier; the
transfer parameter must contain a valid spindle number.
Spindle number
Converts an axis identifier into an integer spindle index.
AXTOSPI corresponds to the reverse function to SPI.
Axis identifier of AXIS type as variable or constant
The string is output with the associated spindle number.
Checks whether the specified geometry axis exists.
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
;Transverse axis
;Final position for transverse axis
;Override for spindle 1
;Does abscissa exist?
;Move abscissa
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