S7-300/400 - Creating DataBlocks

gda

Guest
G
Did anybody tried to use the system functions CREAT_DB/DEL_DB??
By creating and deleting a DataBlock more than once, will I get any problem with the PLC loading memory???

thx in advance for ur answers

(¯`·._.[GDA]._.·´¯)
 
I'm speaking from the top of my head but you can check. I'm sure that there is an automatic memory compress on S7. This would allow you to create and destroy a DB as many yimes as possible. I have not got a PLC free, but why not write a simple program that simple creates a DB, populates this and closes the DB and see if it topples over.
 

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