Mitsubishi MELSEC-F User Manual page 125

6 FIXED BUFFER COMMUNICATION (WITH THE PROCEDURE EXIST
CONTROL METHOD)
In communication where the procedure exist control method is selected, the data
can be communicated by the following methods after the open processing is
completed.
• Fixed buffer communication with the procedure exist control method (sending or
• Communication using MC protocol
(3) At data sending/receiving, the Ethernet module processes the following.
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POINT
receiving)
(When adjusting settings in the FX Configurator-EN (GX Developer), select
[Procedure exists (MC)] in [Ethernet Settings]
system].
(a) When sending data
In response to the fixed buffer communication transmission request (write
"0001H" to BFM #1610 to 1617), the Ethernet module sends the data of the
fixed buffer stored in the fixed buffer area (BFM #1664 to 9855) to the the
specified external device (BFM #40 to 95) ( 1)
(b) When receiving data
The Ethernet module processes the received data if the data is received
from an external device set in the communication setting area that
corresponds to fixed buffer No. n. ( 1)
If data is received from an external device not set in the connection
information area of the buffer memory, the Ethernet module ignores the
received data to the PLC side.
1 In case of TCP/IP Unpassive open, data is communicated with an
external device stored in the connection information area
corresponding to fixed buffer No. n.
MELSEC-F
[Open settings] [Open
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