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4.6 Modbus Protocol for GPIO&ADC Acquisition
4.6.1 The Way of Cable Connection.
Analog input
a. Single-cable: Connect the analog output of the sensor to the analog input(ADC) of F2X16
directly.
b. Double-cable: Connect the positive of analog output of the sensor to the analog input(ADC) of
F2X16, and connect the ground wire to GND(PIN2) of F2114.
Digital input
a. Low level input
：
Connect the input of contact switch to GND of F2x16 and connect the output
of contact switch to the digital output of F2X16(IO1/IO2).
b. High level input
：
Connect 3.3V voltage output to IO1/IO2, and connect the ground wire to GND
of F2X16.
4.6.2 Modem setting:
Summary of Contents for F2816 V2
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