To implement a non-standard Modbus protocol using pymodbus.
The message structure to read the hold register data given by the manufacturer is:
address(1byte) + func. code(1byte) + Serial No:(10 bytes) + start reg:address(2 bytes)+length( 2bytes)+ checksum
01 03 31 32 31 34 33 32 34 33 35 33 6E 00 01 00 21 19
There is an addition of 10 bytes of serial no. after function code. This is the serial no of the device.
Can you implement such a modified Modbus protocol using pymodbus.
Can sm1 do by sharing an example simulation (generator) using [login to view URL]
To test the example with a virtual serial port driver (implementing both master and slave).
9 freelancers are bidding on average €213 for this job
Hello, The additional field will make the checksum formula changed also, but no need to change the package stop byte as it is by stop bytes detector. So yes it is easy to modify. Best Regards, Khamid
Hi, how are you. I am a Communication and raspberry pi expert. I want to work in your project very hard. please hire me. if you do, you will get good result. best regards.
Have lots of experience with MODBUS. have done large number of MODBUS canners. Currently working on an advanced MODBUS simulator for a Fortune 500 company Can we be of help in this project? Thanks