Weighing PCB module convert to RS485 level and communicating with MODBUS RTU

Most of the raw sensor like loadcell need an amplifier to boost the signal from the raw sensor, the boosted signal again need to be conditioned and smoothing, finally to consider which communication platform that need to be converted and send out the signal to the target place. Here we chosen the analogue signal is converted to the free MODBUS RTU protocol and let the multidrop advantages to help picking up more loadcell from multiple places then let the PLC, computer, controller etc poll the data from it, no need 4 to 20 mA analogue module involve.