Axis Communications Dynamixel AX-12 - Manual (Page 9)

DYNAMIXEL AX-12
• When the DIRECTION_PORT level is High: the signal TxD is output as Data
• When the DIRECTION_PORT level is Low: the signal Data is input as RxD
Half Duplex UART A multi-drop method of connecting multiple Dynamixel actuators to a single node is
possible by using the half duplex UART. Thus a protocol that does not allow multiple
transmissions at the same time should be maintained when controlling the Dynamixel
actuators.
Main
Controller
[Multi Drop Link]
Caution Please ensure that the pin assignments are correct when connecting the Dynamixel
actuators. Check the current consumption when powering on. The current consumption
of a single Dynamixel actuator unit in standby mode should be no larger than 50mA
Connection Status Verification
When power is applied to the Dynamixel actuator, the LED blinks twice to confirm its
connection.
Inspection If the above operation was not successful, then check the connector pin assignment and
the voltage/current limit of the power supply.
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