Mitsubishi Electric MELSEC FX Series - Page 109

FX communication
RS instruction 9
9-7
9
2 ) Use terminal mode of control line
This mode is available for send only or receive only.
a ) Send only
b ) Receive only
Data 1
RS instruction
driving
Send data
SD (TXD)
OFF ON
Data 2
Send request
M8122
ONOFF
Data 1
ER(DTR)
OFF
OFF
ON
ON
DR(DSR)
Reset using a program. When it is not trurned off, the next data cannot
be received.
Data 1
OFF ON
OFF ON
ON
Data 2
OFF ON
RS instruction
driving
Receive data
RD (RXD)
ER(DTR)
ON
Receive
completion
M8123