[How to Read and Write query in PLC by HMI (on software base)]

hello sir,

Finally we solve our 80% problem by peakHMI software. we connect peakHMI with lg plc for read data but we have one more problem we require 7c as a BCC.

I attach one image file can you send bcc calculation in your terms in programing language(we required BCC in programing language).  please little more help.

Thanks for your support.

NImesh Sharma

[How to Read and Write query in PLC by HMI (on software base)]

hello sir

Yes i have one document regarding to software base read and write query for LG master k 300s series plc.  But these document is not useful for me.

Thanks for your support.

Nimesh Sharma

pmu_comm_interface.pdf

[How to Read and Write query in PLC by HMI (on software base)]

I have trying to design communication interface with LG-New Master K Series 300S plc.
I have also refer Master-K series document.
But i can't found any proper documents for communication.
How to read register from PLC?
How to write register in PLC?
please suggest me any documents or query format for same.
I got query from HMI which is already connected with PLC.
{STX}rM125D00025D{ETX}
This type of query format not explain in any documents.
please help me.