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Code Description
Number of transfer
(1)
words
COM port No. of a
(2)
master unit
Unit number of a
(3)
destination unit
Memory area to store
(4)
control data
SEND / RECV
instruction execution
(5)
flag
Memory area of a
(6)
master unit that stores
send data
Destination unit send
data
(7)
storage area
● Other F145 (SEND) / F146 (RECV) instructions cannot be executed at the same time to a
communication port during master communication. Confirm that the "SEND / RECV instruction
execution flag" is ON, and execute the instructions.
● F145 (SEND) / F146 (RECV) instruction cannot be executed at the same time to a port during
slave communication.
● The processing of F145 (SEND) / F146 (RECV) instruction is handled during the execution of
ED instruction. Check the SEND / RECV instruction execution end flag to confirm the
completion of transmission / reception. Turned ON in the case of an error, and an error code is
stored in DT90123-DT90128. (Example: !61 Data error = H61)
● In the case of COM0 port, specify "HF" as a COM port No. for an operand of the F145 (SEND) /
F146 (RECV) instruction.
■
Special relays / special data registers
Operation
SEND/RECV
0: Not executable
instruction
1: Executable
execution flag
SEND/RECV
0: Successful
instruction
execution end
1: Unsuccessful
flag
SEND/RECV
When unsuccessful,
instruction end
an error code is
code
stored.
(Note 1)
The Nos. in brackets indicate devices that are compatible with existing FP-X / FPsigma.
WUME-FPXHCOMG-02
5.3 MEWTOCOL-COM Master Communication (SEND)
Specify the number of words in higher words of control data.
Range: H1 to H1FB (1 word to 507 words)
Specify a COM port No. for the higher 4 bits in lower words of control data.
HF: COM0 port; H1: COM1 port; H2: COM2 port; H3: COM3 port; H4: COM4
port
Specify a unit number of a destination unit for the lower 8 bits in lower words of
control data.
Range: H00 to H63 (K0 to K99)
Specify the starting number of the area (2 words) that specifies the transfer
method and the number of transfer data.
This is inserted to confirm that no SEND / RECV instruction is in progress for
the same port. Turns ON when an instruction is executable.
Specify the memory area of a master unit that stores send data.
Using two operands, specify the type and relative address of the memory area
of a destination unit that stores send data.
COM0
R9134
R9135
DT90123
COM1
COM2
R913C
R9144
(R9044)
(R904A)
R913D
R9145
(R9045)
(R904B)
DT90124
DT90125
COM3
COM4
R914C
R9154
R914D
R9155
DT90127
DT90128
5-7
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