Siemens SIMATIC FM 353 Manual page 285

Skip block /
Program blocks which are not to be executed every time the program runs can be
identified as skippable blocks by an oblique "/ ". When the program is being pro-
cessed, the "Skip block" control signal can be used to decide whether skippable
blocks are to be skipped. The last block may not be skipped.
Block number N
The program is executed in ascending order of block numbers (1 to 255) or in de-
scending order if executed in reverse.
G function group 1 − 3
In each traversing block only one G function may be entered from each G function
group.
The following figure shows an example.
/ N
10
G functions
Table 10-1 lists the possible G functions and the individual G function groups.
Table 10-1
GNo.
1)
04 Dwell time
87 Turn off measuring system shift for Set Actual Value On-the-Fly
1)
88 Continuous travel for (−) for Set Actual Value On-the-Fly
1)
89 Continuous travel for (+) for Set Actual Value On-the-Fly
90 Absolute dimensions
91 Incremental dimensions
30 100% override on acceleration/deceleration
31 10% override on acceleration/deceleration
32 20% override on acceleration/deceleration
. .
. .
. .
39 90% override on acceleration/deceleration
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
G1 G2 G3 X/t
90 100 000
34 43
G functions
G Function
Writing Traversing Programs
F M1 M2 M3
400 00
D
10
G Function
group
1 1
2
10-3