Traversing Blocks - Siemens SIMATIC FM 353 Manual

Writing Traversing Programs
Traversing block
A traversing block contains all the data required to perform a machining step.
Program structure
A program consists of several blocks. Each block number occurs only once, and
numbers are arranged in ascending order.
A sample program structure follows:
/ N G1 G2 G3
5 90
6
91
...
7
.
.
.
45
46
10.1

Traversing blocks

Block structure
The following Figure gives you an overview of the structure of traversing blocks.
/ N G1 G2 G3
/ − Identifier for skipped block
N − Block number
G1 − G function of first function group
G2 − G function of second function group
G3 − G function of third function group
X/t − Position/dwell time
F − Speed
M1 − M function of first function group
M2 − M function of second function group
M3 − M function of third function group
D − Tool offset number
L − Call a program as a subprogram
P − Number of subprogram runs
10-2
X/t F
M1 M2 M3
500 000 100 000 10
... ...
2
X/t F M1 M2 M3 D
L P
D
Start of program =
lowest block number
End of program = M2
or M30
L P
see Table 10-1
see Table 10-2
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0