9-29
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
9.2.6
Automatic
In the Automatic mode (following-block mode), the FM 453 processes tra-
versing programs . autonomously. These programs are created with “Parame-
terize FM 453” (see Chapter 5, 5.3.4) and stored as a data block. The travers-
ing programs contain information about movement sequences and outputs
(see Chapter 10).
Programs are selected (job no. 17) by way of the user program, by specifying
a program number and an optional block number, as well as the direction of
machining. A program can be selected only when other programs have been
interrupted or terminated or at the start of a program.
A selected program remains active until it is inactivated by selecting program
number = 0, or overwritten by selecting another program.
If modifications are made to a preselected program, including the subpro-
gram, preselection of the program is canceled. You must then select the pro-
gram again. A modification can be made to a program when BL = 0 (start of
program/end of program) and on Stop.
Triggering
of
Select Program
Type of Movement
(According to Programmed Blocks)
of
Movement
Block
No.
Processing
Direction
(According to Programmed Blocks)
Start
0
0
e.g. 30
e.g. 30
forward
reverse
forward
reverse
Start at beginning of program, process
by ascending block number
Start at end of program, process by de-
scending block number
Block search forward to block No. 30,
by ascending block number
Block search in reverse to block
No. 30, by descending block number
Start with au-
tomatic block
search for-
ward
forward
1. Automatic block search forward to
interruption point
2. Positioning to interruption point (if
a movement was performed in
another mode)
3. Process the interrupted block and
continue the program
Start with au-
tomatic block
search in re-
verse
reverse
1. Automatic block search in reverse
to interruption point
2. Positioning to interruption point (if
a movement was performed in
another mode)
3. Process the interrupted block and
continue the program
Overview
Program Selection
Description of Functions
Summary of Contents for SIMATIC FM 453
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Page 14: ...xiv FM 453 Servo Drive Step Drive Positioning Module C79000 G7076 C453 01 Table of Contents ...
Page 378: ...Index 6 FM 453 Servo Drive Step Drive Positioning Module C79000 G7076 C453 01 Index ...
