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FX Series Programmable Controllers
3) Normal Mode 1 D8120 (b12, b11, b10) = (0, 1, 1)
1FX2N below V2.00.
RS
instruction
Send data SD
(TXD)
Send request
M8122
Send wait
flag M8121
ER(DTR)
Receive data
RD (RXD)
Receive
completion
M8123
DR(DS
4) Normal Mode 2 D8120 (b12, b11, b10) = (1, 0, 1)
1FX2N after V2.00
RS
instruction
Send data
SD (TXD)
Send request
M8122
Send wait
flag M8121
ER(DTR)
DR(DSR)
Receive data
RD (RXD)
Receive
completion
M8123
OFF ON
Data 1
OFF
ON
OFF
ON
OFF
OFF
R)
This period should be 100 µs or more
OFF ON
Data 1
OFF
ON
Check OFF
OFF
ON
OFF
ON
*5
Check
OFF
*3
Data 3
OFF
ON
Data 2
ON
Reset using a program.
W hen it is not turned off, the
next data cannot be received.
ON
Data 3
ON
*2
*1
Data 2
OFF
ON
*4
Points Of Technique 10
FX
FX
FX
1S
1N
FX
FX
FX
1S
1N
*1
10-21
FX
2N
2NC
FX
2N
2N(C
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