hello guys,

i intend to communicate between my plc s7-1215c and modbusSlave software.

i have use mb_client in my program. the program is precisely according to this video

https://www.youtube.com/watch?v=_4CHW9EbIkM

but couldn't make communicate. it gives 7002 error code.

waiting for your priceless comments

best regards

Thanks for your comment.

i used move to save status on error but the status is always 7002.

the connection can not be established

i used multiple MODBUS simulation software. even i checked access to web server and PUT/GET permission  (although i knew its not much related to this issue).

all of configuration was done according to the video by it does not work.

The problem was because of the modbus simulator, in real system i could run every thing very will.

Thank dear