F
We are developing a device that support Modbus protocol.
We have 32-bits register can be accessed in read/write by Read holding register and Write multiple register commands with a 2 registers length argument.
My question is what happen if read/write only a 16bits portion of this 32-bits register? I should process the ModBus request by send and "access violation" exception or the request is legal and I must process the 16-bits operation?
Thanks!
Fred
We have 32-bits register can be accessed in read/write by Read holding register and Write multiple register commands with a 2 registers length argument.
My question is what happen if read/write only a 16bits portion of this 32-bits register? I should process the ModBus request by send and "access violation" exception or the request is legal and I must process the 16-bits operation?
Thanks!
Fred