EasyIO FC20 User Reference v1.3
Universal Input Connection
EasyIO FC-20 has twelve non-isolated universal inputs. The universal input supports three type of analog
signal i.e. resistance, voltage and current transmitter via hardware jumper and internal register settings:
a) Resistance – The working range of resistance is 0 – 300K Ohms. If the input is configured as
Thermistor type, the system provides 8 customizable temperature lookup tables for resistance to
temperature translation. The commonly used Thermistor like 10K, 10K with Shunt, 1K Balco and 1K
Platinum are all supported
b) Voltage – Two selection of working range 0 – 5V and 0 – 10V. The minimum input impedance of
voltage input is 1 Mega Ohm.
c) Current – Two selection of working ranges 0 – 20mA and 4 – 20mA. The current input impedance is
less than 25 Ohm.
d) Pulse Input – Only UI1, UI2, UI3 and UI4 are capable of receiving high speed pulse. Minimum on time
pulse is 25ms and minimum off time is 25ms. Refer to image below.
Universal Input Connection
