data block

hi 

i use cpu417-5h , but  have a problems 

we use data block for save value of  botton in hmi 

Sometimes, a number of data blocks are set automatically and i can not understand reason

please help to resolve this issue

behnam ba

hi 

i use cpu417-5h , but  have a problems 

we use data block for save value of  botton in hmi 

Sometimes, a number of data blocks are set automatically and i can not understand reason

please help to resolve this issue

 Somewhere in your project, the data is being written to the DB. You need to find where that happens.

in cross  refrence db use just for botton in hmi and color botton 

behnam ba

in cross  refrence db use just for botton in hmi and color botton

 Indirect addressing can't be found with cross reference... We don't have a chrystal ball to see what you or someone else has done, so it's kind of hard to help without knowing more.

These DBs are actually bits of one DB

Need more explanation?

behnam ba

We put two buttons together in wincc

And the address of these two buttons is linked to a DB and one uses the value of zero and the other uses the value of one

The problem of getting our values is related to these DBs that get values for no reason sometimes

These DBs are actually bits of one DB

Need more explanation?

 Some pictures would be nice, your explanation is giving us nothing to work with...

this picture show two botton linke to one db

do you have question?

Hi Behnam,

As Hati said, people do not have crystal ball ;) . If you want to find the cause of your issue you need to provide enough information to get some help.

If I were you to troubleshoot , I'd run PLC without HMI, if the values were changing I'd look at PLC program, otherwise I'd look into HMI program.

Good luck.