Siemens SIMATIC FM 353 Manual page 286

Writing Traversing Programs
Table 10-1
GNo.
43 Tool offset (+)
44 Tool offset (−)
1)
50 External block change
60 Exact stop block change
64 Set actual value on-the-fly, continuous-path mode
1) These G functions take effect only on a block-by-block basis. The other G functions remain
active until canceled explicitly.
G30, G90 and G64 are the initial settings after the start of the program.
Dwell G04
A traversing block with dwell can only contain M functions and the time parameter
apart from this G function.
The following applies for dwell time:
Name
Dwell time
Odd input values are rounded upward. Dwell times take effect only on a block-by-
block basis.
If no value is input for G04 in the block, the lower input limit applies.
Block change G60, G64 (approach conditions)
With G60, the exact programmed position is approached and the feed movement
is stopped (exact stop block change).
G64 causes the next block to be processed immediately as soon as the point of
deceleration is reached (change block on-the-fly).
G60 and G64 are mutually exclusive and modal.
M commands have no effect on G64 operation.
(For a detailed description, see Section 10.3).
External block change (G50) with delete residual path
The "external block change" function causes a block change on-the-fly triggered by
a digital input. The fast input must be parameterized with the "External block
change" function by way of machine data item MD34.
The function takes effect only on a block-by-block basis (no effect on G60 and
G64).
10-4
G functions, continued
G Function
Lower input
limit
2
Upper input
limit
100,000
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
G Function
group
3
Unit
ms