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High
−
level Instructions
3
−
362
Flag conditions
Σ
Error flag (R9007) : Turns on and stays on when
Σ
Error flag (R9008) : Turns on for an instant when
−
The control data of [S1] and [S1+1] is a value outside of the specified
range.
−
The number of words specified by S1 causes the area of S2 or D to be
exceeded when word unit transmission is being used.
−
[S2]+[N] exceeds the area of [S2].
−
The operation mode for the target COM port is other than compute link.
−
Word unit
If [S2] is DT/LD, it turns on when [N] is not 0 to 32767.
If [S2] is WX/WY/WR/WL/SV/EV, it turns on when [N] is not 0 to
9999.
−
Bit unit
It turns on when [S2] is not WX/WY/WR/WL.
It turns on when [N] is not 0 to 999.
−
The device No. of [S2] is not 0.
−
The communication cassette has not been installed for the target COM port.
Precautions during programming
Specify the computer link for the operation mode (system register setting) of the COM port to be used.
It is not possible to execute multiple F145 (SEND) instructions and F146 (RECV) instructions for the
same communication port simultaneously.
The program should be set up so that these instructions are executed when the SEND/RECV
execution enabled flag (R9044: COM1/R904A: COM2) is on.
R9044
(COM1)
0: Execution inhibited (SEND/RECV instruction being executed)
1: Execution enabled
R904A
(COM2)
0: Execution inhibited (SEND/RECV instruction being executed)
1: Execution enabled
The SEND instruction only requests that the data be sent, but the actual processing takes place when
the ED instruction is executed.
The SEND/RECV execution end flag (R9045: COM1/R904B: COM2) can be used to check whether or
not the transmission has been completed.
R9045
(COM1)
0: Completed normally
1: Completed with error (The error code is stored in DT90124.)
DT90124
(COM1)
If the transmission has been completed with an error (R9045 is on), the contents of the error (error
code) are stored.
R904B
(COM2)
0: Completed normally
1: Completed with error (The error code is stored in DT90125.)
DT90125
(COM2)
If the transmission has been completed with an error (R904B is on), the contents of the error (error
code) are stored.
FP
Σ
/FP
−
X/FP0R
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Summary of Contents for FP-X
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