Analog current input

[Linnalahti]

KC868-A16 have 4 channel analog input ports.
actually the circuit is same, if use for VOLTAGE or CURRENT, just replace two resistance for SWITCH.
for example, if you want CHA1 use for 4-20mA, you can replace R70 resistance with 0ohm, R72 resistance with 150ohm.
every analog input channel switch as the same way. so if you want 4 channel of 4-20mA, just replace with all resistance.