Cautions - Panasonic FP3 Technical Manual

4. Cautions

• One CPU cannot be related to 3 or more F145(SEND)/P145(PSEND) and/or F146(RECV)/P146(PRECV)
instructions at the same time. Make sure that one CPU is not specified as 3 or more destinations or sources of the
instructions at the same time.
• Only one of the F145(SEND)/P145(PSEND) and F146(RECV)/P146(PRECV) instructions can be executed at the
same time for one CPU. If triggers for two or more instructions are turned ON in one scan, the instruction
programmed with the smallest address is executed after the end instruction(ED).
When two or more instructions are programmed, program triggers for the instructions not to be turned ON at the
same time.
[EXAMPLE]
R0
F145
R1
F146
Flag Description
R9030 0 : When data cannot be transferred.(including the time while data are being transferred.)
1 : When data can be transferred.
R9031 0 : When the transfer operation has completed without error.
1 : When a transfer error occurs.
(The error code is stored in DT9039.)
R9007 Turns ON and stays the ON,
• when the data specified in "S1 +1" and/or "S1" is out of the range.
• when the unit cannot be found.
• when the ending memory area address(Source/Destination) specified using "S1 + 1", "S1", "D" and
"N" is beyond the limits of the specified memory area.
(The error program address is stored in DT9017.)
R9008 Turns ON for an instant,
• when data specified in "S1 +1" and/or "S1" is out of the range.
• when the unit cannot be found.
• when the ending memory area address(Source/Destination) specified using "S1 + 1", "S1", "D" and
"N" is beyond the limits of the specified memory area.
(The error program address is stored in DT9018.)
• Time out error
When the transfer operation is not performed within specified period, a time out error occurs.
The maximum time required for the transfer operation can be specified in the system register number 32.
Time(ms)
Value entered =
• When the transfer operation is not completed within the specified time, the flag R9031(special internal relay)
turns ON(1) and an error code is stored in DT9039.
71(Hexadecimal) : Response signal indicating that the transfer operation cannot be received.
72(Hexadecimal) : Buffer for the link is full.
73(Hexadecimal) : A response message was not received.
SEND, DT 0, WR
RECV, DT100, WR100, K
Value entered
2.5
(Decimal)
32,760
R0
0, DT 0, K 0
R1
0, LD 30
Time
(ms)
4 10
: :
800 2000 (2s)
: :
81,900 (81.9s)
4-3. Data Transfer
:Trigger for F145
Turns ON only when R1 is OFF
:Trigger for F146
Turns ON only when R0 is OFF
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