Weighing System
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.
Get weight from loadcell
Get the actual weight reading from commercial weighing scale of 2 bottles of water with 700g & 1500g, read the signal from customize made analogue card that comuncating with Fatek PLC in real time under MODBUS RTU protocol, the MODBUS is connected with few slaves including digital slave card. The weight is shown in PLC progrm simulator on the notebook screen.