S7 Resetting a range of flags/Outputs

pouch · Nov 9, 2007

I have used SFC80 from the S7 library to reset ranges of flags and outputs on a 315DP program. The CPU rejected the blocks with the SFC80 function in them. A friend who works for Siemens reckons its probably a version problem.

Question, what methods are best used for resetting ranges flags and outputs. The client insists on ladder.

Regards

Pouch

lauu · Nov 9, 2007

Hej

Have you tried the FC 82 from the "TI-S7 Converting Blocks" lib.

Best Regards
Jesper

pouch · Nov 9, 2007

Fc82

Thanks, I did read about FC82 but couldn't find it. Must look harder. Thanks again.

Pouch

L D[AR2P#0.0] · Nov 9, 2007

What parameters did you assign to SFC80 ?

SFC21 can be used to fill memory areas, e.g.

Nick B · Nov 9, 2007

Pouch...I hate to state the obvious...did you check online to see whether SFC80 is in your CPU?

It may not be available on your CPU...but I doubt it.

Nick

pouch · Nov 10, 2007

Hi all,

The parameters used:

SA m0.0
N 12
RET_VAL mw80

From what I've read it should run on an S7 315.

Reading the document properly it looks like value for SA should be a pointer i.e. P#M0.0.

Regards

Pouch

L D[AR2P#0.0] · Nov 10, 2007

SFC80 only operates on the P area. You cannot use it to clear the M area.
SA=P#P0.0 for example.

moggie · Nov 10, 2007

Hi,

Try the following;

A M 100.0 //Condition to carry out reset
JNB _001
L 0
T ID 100 //area to reset, Can be Q, M or I area.
T QB 100 //Use Byte Word or Double word
T MW 10
_001: NOP 0

S7 Resetting a range of flags/Outputs

pouch

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