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High−level Instructions
F144
(TRNS)
Outline
Communicates with an external device using the RS232C port.
Program example
Trigger
R0
10
DF
1
F144 TRNS, DT 100, K 8
S
n
Operands
Relay
Operand
Operand
WX WY WR
S
N/A N/A N/A
n
A
A
3 − 318
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Serial data communication
Ladder Diagram
Ladder Diagram
S
Starting 16-bit area for storing data to be sent
16-bit equivalent constant or 16-bit area to specify number of bytes to be sent
− When the value is positive, an end code is added.
− When the value is negative, an end code is not added.
− When the value is H8000, the transmission mode of the RS232C port is
changed.
Timer/Counter Register
SV
EV
DT
N/A
N/A
A
A
A
A
A
1
n
Index
Constant
register
I
K
H
N/A
N/A
N/A
A
A
A
FP0/FP−e
Availability
FP0/FP−e
Boolean
Address
Instruction
10
ST
R
11
DF
12
F144
(TRNS)
DT
K
Index
modifier
modifier
A
A:
Available
A
N/A: Not Available
0
100
8
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