Access To Curve Table Positions And Table Segments (Ctab, Ctabinv, Ctabssv, Ctabsev) - Siemens SINUMERIK 840D sl Programming Manual

Read in synchronized actions
When using commands CTABINV( ) or CTABTMIN( ) and CTABTMAX( ) in synchronized
actions, the user must ensure that at the instant of execution
• either sufficient NC power is available or
• the number of segments in the curve table must be queried before it is called up in case it
Additional related information about programming synchronized actions is given in chapter,
"Motion synchronous actions".
9.3.5 Access to curve table positions and table segments
(CTAB, CTABINV, CTABSSV, CTABSEV)
Function
Reading table positions, CTAB, CTABINV
With CTAB you can read the following value for a master value directly from the parts
program or from synchronized actions.
With CTABINV, you can read the master value for a following value. This assignment does
not always have to be unique. CTABINV therefore requires an approximate value for the
expected master value.
Programming
Reading the following value for a master value
CTAB(master value, n, degrees, [following axis, leading axis])
Reading the master value for a following value
CTABINV(following value, approx. master value, n, degrees,
[following axis, leading axis])
Reading the start and end values of a table segment
CTABSSV(master value, n, degrees, [Faxis]),
CTABSEV(master value, n, degrees, [Faxis])
Job planning
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
is necessary to subdivide the table.
Path traversing behavior
9.3 Curve tables (CTAB)
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