Mitsubishi FX3U-ENET, User Manual

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MELSEC-F
5 COMMUNICATION PROCEDURE
(1) Protocol
(connection numbers 1 to 8; BFM#32 to 39 b8)
(a) Select the protocol for each connection.
Name of setting Description of setting
TCP Communicate using TCP/IP.
UDP Communicate using UDP/IP.
(b) For protocols (TCP/UDP), see 1.3, "Software Configuration".
(2) Open system
(connection numbers 1 to 8; BFM#32 to 39 b15, b14)
(a) Select the connection open system for each connection for which "TCP" is
selected in "(1) Protocol". If "UDP" is selected, the specification of this item
is not required.
Name of setting Description of setting
Active
Perform active open processing to an external device that waits for a passive open
(Fullpassive/Unpassive) on the TCP connection.
Unpassive
Perform passive open processing on the TCP connection addressing all the devices connected
to a network.
(The local station is placed in the wait status to wait for an Active open request to be sent.
Fullpassive
Perform passive open processing on the TCP connection, only addressing specific devices.
(The local station is placed in the wait status to wait for an Active open request to be sent.)
The local station waits for an Active open request from the opposite station set in "(8)
Destination IP address".
MELSOFT connection
1 2 3
Used to connect MELSOFT products via TCP/IP communication.
Perform passive open processing on the TCP connection, addressing all the MELSOFT
products connected to a network.
(The local station is placed in the wait status for an Active open request to be sent.)
1
Regardless of the initial timing setting in the operation setting (refer to Section 4.7),
this connection will always wait for the open status.
2 The set connection is dedicated to data communication with the MELSOFT products.
3 When simultaneously connecting to multiple MELSOFT products, set the connections
to be as many as there are MELSOFT products.
A maximum of four connections can be set. However, when setting [Usable]
in the open settings for [MC Protocol], the number of usable connections
decrease by the number set in [MC Protocol].
The number of connections to MELSOFT pr
Number of connections which made MC protocol operational
4
PLC main unit
PLC main unit
Initial completion
Active open
Fullpass ive/
Unpassove
open
Initial completion
Open completion
Active open
Ethernet module
Ethernet module
Initial request
Initial completion
Open request
Open completion
Initial request
Initial completion
Open completion
Open
Wait for open
request
FROM instruction
TO instruction
FROM instruction FROM instruction
TO instruction
FROM instruction