Hitachi Ltd Mechatronics Systems Division AE-HA-1217 Manuel D’Utilisation
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3.2 Communication Mode Function
DTR signal form PC: ON makes the BPU enter Communication Mode.
All data transmitted from PC in the mode are interpreted as transmit data to a remote device. And also, all data
the BPU receives from a remote device are transmitted to PC.
Data transmitted to the BPU, prior to connection to a remote device, with DTR ON are not sent to the remote
device as the data are cleared at the time of the connection.
the BPU receives from a remote device are transmitted to PC.
Data transmitted to the BPU, prior to connection to a remote device, with DTR ON are not sent to the remote
device as the data are cleared at the time of the connection.
PC
BPU
Transmit Data
Remote Device
DTR ON
Receive Data
(Through)
(Connect to Remote Device)
(Clear Transmit/Receive
(Clear Transmit/Receive
Buffer Clear)
Transmit Data
Receive Data