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15
9. HART Communication Method
Caution
Confirm followings before starting HART communication.
1. Air Servo Cylinder IN-777 is supplied with 24V as input voltage.
2. Air Servo Cylinder IN-777 is supplied with 4 to 20mA as input current.
3. 475 field communicator wiring is arranged.
4. Refer 475 field communicator manual from EMERSON for 475 field communication usage.
Procedure to start HART communication
Wire 475 field communicator to input current to IN-777 Air Servo Cylinder, and turn on the power supply
of 475 field communicator. After starting 475 field communicator's OS, synchronization with the Air
Servo Cylinder automatically starts.