How many iLoad Digital USB load cells can be connected to a PC?
In theory a typical PC can support up to 255 serial devices (COM ports), but in practice this is limited by the specific configuration of your PC’s hardware. Since the iLoad Digital USB load cell appears as a virtual COM port on the PC, up to 255 such load cells could be connected to a single PC as long as the PC is able to supply the needed excitation voltage. Each iLoad Digital USB load cell needs 50mA at 5V and a PC’s USB port is typically able to provide upto 100mA at 5V. So you can power at least one iLoad Digital load cell per USB port. Since some PCs have limited USB ports, you can use a powered USB hub to expand the number of load cell you can plug to a PC. If you use our SC-1200 interfaces, you can connect up to 12 iLoad Series serial sensors (baseline output without our USB dongles at the end of the cable) directly into teh SC-1200 and read data from all of the connected load cells via USB, RS-485 or Zigbee wireless protocols. the SC-1200 supplies all the power needed to powe
