Hi all,

 I had added MB Master Block and when I request to True in this block, the CPU Diagnostic buffer shows error "Area Length Error in FB(This is system created FB , readable only which is related to MB Master DB). How can I rectify this error?

Thanks,

Jay

 Hi mopS04,

 I use CPU1215C DC/DC/DC with CB 1241 module. used a manual input in the request for testing purpose. Do you need any additional details?

Thanks for your response.

Jay

mopS04

Hi Jay,

what CPU do you have and how is the function used? How did you connected its parameters?

regards,

 I am aware of the error, but want to know why it causes the error in OB1 processing?  Is it related?

Towome

Hi,

MB Master block has an output parameter which shows error/status of block  -> please check/save this parameter if error gets true. Mostly DATA_PTR is wrong....

Regards,

Towome

 Array of Word. Is it a problem?

#dP

You are attempting to push 40 bytes of data through "Data_block_1".Static_1. As what is Static_1 declared as in data type?

 yes it runs without error. is there anything else which needs to be setup inside the comm load DB?

mopS04

Comm_Load- function runs through without error?

Are you sure that you have the extended address range?

I would also check the Port-parameter on the MB_Comm_Load-block.

regards,