Writing Traversing Programs
10-4
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0
G functions, continued
GNo.
G Function
group
G Function
43
Tool offset (+)
44
Tool offset (
−
)
50
1)
External block change
3
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
Lower input
limit
Upper input
limit
Unit
Dwell time
2
100,000
ms
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).
Summary of Contents for SIMATIC FM 353
Page 22: ...Product Overview 1 12 FM 353 Stepper Drive Positioning Module 6ES7 353 1AH01 8BG0 ...
Page 32: ...Installing and Removing 3 6 FM 353 Stepper Drive Positioning Module 6ES7 353 1AH01 8BG0 ...
Page 282: ...Description of Functions 9 82 FM 353 Stepper Drive Positioning Module 6ES7 353 1AH01 8BG0 ...
Page 354: ...User Data Block AW DB B 16 FM 353 Stepper Drive Positioning Module 6ES7 353 1AH01 8BG0 ...