TE7: Continue machining at the contour (retrace support) - 840D sl only
19.2 Function description
compensation) are mapped as straight lines through the start and end points of the
corresponding contour element, thereby preventing precise retracing of contours.
Function code
The code for the "Continue Machining - Retrace support" technological function for function-
specific identifiers of program commands, machine data, etc. is:
RESU (= REtrace SUpport)
Restrictions
The use of the "Continue Machining Retrace support" technological function is subject to the
following restrictions:
● The technological function is available only in the 1st channel of NC.
● Program continuation or reverse travel is only possible for part program blocks that contain
traversing blocks in the configured RESU working plane (e.g. 1st and 2nd geometry axis
of the channel, see Section "Definition of the RESU working plane (Page 706)").
References
The "Continue Machining - Retrace support" technological function is a compile cycle. For the
handling of compile cycles, see Section "TE01: Installation and activation of loadable compile
cycles (Page 549)".
19.2
Function description
19.2.1
Function
Block search with calculation on contour
To be able to resume interrupted machining at a specific point in a part program, a block search
can be carried out using the "Block search with calculation on contour" standard function.
However, detailed knowledge of the part program is required to be able to enter the block
number of the part program block required for the block search (i.e. the number of the block
the search needs to locate).
Continue machining - Retrace support
The "Continue machining - Retrace support" technological function supports the continuation
of the machining operation by means of an implicit block search with calculation on the contour
without the machine operator needing to know the part program block required.
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Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions