Programming the FM 452
6-14
FM 452 Electronic Cam Controller
C79000-G7076-C452-04
6.6
Data Blocks
6.6.1
Templates for Data Blocks
The supplied library (FMx52LIB) contains a block template (UDT) for each data
block. Based on this UDT, you can create data blocks with any numbers and
names.
Optimizing the UDT
To save memory, you can delete unused data areas at the end of the
UDT CAM_CHANTYPE. You can then save the modified UDT under a different
name.
You can then generate a channel DB based on this UDT that is optimized for your
application.
Functions that access deleted data areas can no longer be used.
The supplied UDTs for the machine and cam data are matched already to the
possible numbers of cams. They can be optimized in steps of 16 cams.
6.6.2
Channel DB
Task
The channel DB is the data interface between the user program and the
FM 452 electronic cam controller. All the data required for controlling and operating
the module is entered in this data block.
Structure
The channel DB is subdivided into various areas:
Channel DB
Control signals
Return signals
Trigger bits for read jobs
Function switches
Trigger bits for write jobs
Done bits
Address
*)
/version switch
Data for jobs
Job management for functions
*) The address can be entered
in the parameter assignment interface.
Error bits
Содержание SIMATIC FM 452
Страница 8: ...Contents viii FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 14: ...Product Overview 1 6 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 28: ...Installing and Removing the FM 452 3 2 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 36: ...Wiring the FM 452 Electronic Cam Controller 4 8 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 38: ...Installing the Software 5 2 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 62: ...Programming the FM 452 6 24 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 68: ...Putting the FM 452 into Operation 7 6 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 130: ...Settings 9 32 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 140: ...Encoders 10 10 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 146: ...Diagnostics 11 6 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 162: ...Samples 12 16 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 168: ...Technical Specifications A 6 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 174: ...Connection Diagrams B 6 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...
Страница 200: ...Data Blocks Error Lists C 26 FM 452 Electronic Cam Controller C79000 G7076 C452 04 ...