LDmicro Forum - Comunicazione

Comunicazione (by Antonio)

Good evening gentlemen
I need help I should use a Weintek operator panel and connect it together with my PIC16F877 microcontroller can you tell me how I could do to no longer buy Siemens PLCs should I do all this through an ethernet port with an IP address, or use an RS485 or RS232 port .
Thanks a lot for your help.

Wed May 20 2020, 11:49:40

communication (by sanjay )

Dear Antonio, Ldmicro is very good in comunacation. I use for many in an industrial application . you can use consol panel input output with comunication Rs232 or RS485
with simple protocol.
if you share some details i will forward you progarm and industial grade PlC hardware for inteface PIC16f877/887.
thanks with regards,

SN

Sat May 30 2020, 12:15:30

(no subject) (by Antonio)

Good evening, Mr. Sanjay
First of all thank you very much for your reply. I use the Siemens PLC a lot but I am running into this new adventure and I would like to use this microcontroller to make the fountains work but I would like to interface it with my Operator Panel.
Attached I am sending you the file that I am creating let me know how I can go on.
Best regards

Tue Jun 2 2020, 10:49:59, download attachment PIC16F877.ld

(no subject) (by sanjay )

Dear Antonio,

Thanks and have a nice Day.

I go thorough your ladder but i unable to understand terms due to language , any way i have understand you want to control relay with time sequence and case select. for this you have to develop harware board like PLC .As promissed here i attach PLC board shematic and layout for field inteface. This plc board i have develop and use without any failure . PLC PCB contain 10 nos 10-24v digital inputs and 8 relay output .
PIC 16f886 microcontroller .
Hope this will help you to develop your projet.

Best Regards,

Sanjay

Wed Jun 3 2020, 14:05:16, download attachment pplc108.pdf