Siemens SINUMERIK 840D sl Function Manual page 628

Detailed description
2.6 Block search Type 5 SERUPRO
Repositioning with RMN
Like RMI, RMB and RME, RMN (REPOS Mode Next) is redefined for SUREPRO approach.
After an interruption, RMN is used not to complete an already started repositioning, but to
process from the next path point:
At the time REPOSA is interpreted, position (B) is referenced in order to find point C at the
interruption block with the shortest distance to B. The repositioning block moves from B to C
to the end position.
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Figure 2-7
Application and procedure
SUREPRO approach with RMN offers the oppotunity of using the application shown in the
figure: If a program abort is forced by RESET at any point when the program is advancing
from block 2 to 3,
• RMN is used to approach the abort location by the shortest route in order to process just
• RMI and RMB are always approached with RMI and RMB and the target block thus
repeated once completely.
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A
2
SUREPRO approach under RMN
the distance to go from C-3 and 3-4. The user starts a SERUPRO operation at the
interruption block and uses the JOG keys to move in front of the problem component of
the target block.
A Actual position during search.
B Position reached using JOG key
after the SERUPRO operation.
C SERUPRO approach moves from B
after C as C is the point next to B in
target block 2-3.
A part program with the blocks
1-2, 2-3, 3-4.
B
C
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Basic logic functions: Mode group, channel, program operation, reset response (K1)
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Function Manual, 11/2006, 6FC5397-0BP10-2BA0