High
−
level Instructions
3
−
325
Outline
Communicates with an external device using the COM. port of CPU.
Program example
Ladder Diagram
Boolean
Ladder Diagram
Address
Instruction
Trigger
S
n
10
R0
F144 TRNS, DT 100, K 8
1
1
DF
10
11
12
ST
R
0
DF
F144
(TRNS)
DT
100
K
8
S
Starting 16-bit area for storing data to be sent
n
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.
Operands
Operand
Relay
Timer/Counter Register
Index
register
Constant
Index
modifier
Operand
WX WY WR
SV
EV
DT
I
K
H
modifier
S
N/A N/A N/A
N/A
N/A
A
N/A
N/A N/A
A
n
A
A
A
A
A
A
A
A
A
A
Explanation of example
When the trigger R0 turns on, 8 bytes of the data stored in data registers DT101 through DT104 are
transmitted from the COM. port.
FP2/FP2SH/FP10SH
F144
Serial data communication
Availability
FP2/FP2SH/FP10SH
(TRNS)
A: Available
N/A: Not Available
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Summary of Contents for FP-X
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