Denker

Hello,

I amtryingto write datas from DB1 process relevant to DB2 unliked (4 INT values) using theSFC84 block and thePLCSIM V5.4 SP3 is being usedto simulate the program.
Running the program and opening the block DB2 or monitoring it from Variable table I can´t see the values"written" in DB1 transferred to DB2.
Does anyone know what might be happening?

SET
= M 10.0

CALL "WRIT_DBL"
REQ :=M10.0
SRCBLK :=P#DB1.DBX0.0 BYTE 8
RET_VAL:=MW8
BUSY :=M10.1
DSTBLK :=P#DB2.DBX0.0 BYTE 8


I have more question.
1) If I use process relevantDB (standard), thedatas are limited by work memory size of CPU, butif I use unliked DB, are the datas limited by MMC size ?
2) Howmany times canwe write/read in MMC using SFCs, 100.000x?
3) And what the best way to save datas if my work memory is limited ? E.g., I need to savedatas in DB but I wantto leave the work memory basically for the program.

Thanks in advance!

regards

I am facing this problem also. It seems like the SFC84 is not working properly. Ive tried and tested the sample program from siemens and to my surprise it is also not working. The data is not saved on the Target DB (unlinked).

Can someone have some expert assessment on my problem, what could be the cause of it? Thank you very much.

Daniel