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5 - 18
MELSEC-F
COMMUNICATION PROCEDURE
5
5 - 18
5.5 Open Settings
This section explains the open setting.
A sequence program can perform open processing (establishing connection) with up
to a maximum of 4 external device stations
Once a connection is established with an external device, it is possible to
communicate using MC protocol, fixed buffer communication.
Thus, the open processing is required even when communicating using MC protocol.
A sequence program can perform open processing (establishing connection) with up
to a maximum of 4 external device stations
Once a connection is established with an external device, it is possible to
communicate using MC protocol, fixed buffer communication.
Thus, the open processing is required even when communicating using MC protocol.
NOTE
When adjusting settings in FX Configurator-EN-L, select the [Open Settings] from
the initial screen and adjust the settings at the [Ethernet Open Settings] screen.
the initial screen and adjust the settings at the [Ethernet Open Settings] screen.
5.5.1 Fixed buffer connection (connection No. 1 and connection No. 2)
*1 "1 (Pairs)" cannot be selected in connection No. 2.
(1) Protocol
(connection numbers 1, 2; BFM#32, 33 b8)
(a) Select the protocol for each connection.
(b) For protocols (TCP/UDP), see 1.3, "Software Configuration".
Setting item name
BFM number [Decimal]
Description of setting
Setting range/options
Protocol
32, 33
(b8)
Set the communication method (protocol).
OFF : TCP/IP
ON : UDP/IP
ON : UDP/IP
Open system
32, 33
(b15, b14)
Select the connection open system.
00 : Active open
10 : Unpassive open
10 : Unpassive open
11 : Fullpassive open
Fixed buffer
32, 33
(b0)
Select the usage of the fixed buffer.
OFF : Send
ON : Receive
ON : Receive
Fixed buffer
communication
32, 33
(b10, b9)
Select which protocol is used for fixed buffer communication.
00 : Procedure exist
01 : No procedure
01 : No procedure
Pairing open*
1
32, 33
(b7)
Select whether pairing open is used or not.
OFF : Pairs
ON : No pairs
ON : No pairs
Existence confirmation
32, 33
(b1)
Select whether the continued existence of a destination station
for a connection should be confirmed or not.
for a connection should be confirmed or not.
OFF : No confirm
ON : Confir
ON : Confir
Local station Port No.
40, 47
Set the local station's port No.
1025 to 5548 or 5552 to 65534
Destination IP address
41 to 42, 48 to 49
Set the IP address of an external device.
1 to FFFFFFFE
H
Dest. Port No.
43, 50
Set the port No. of an external device.
1025 to 65534
Name of setting
Description of setting
TCP
Communicate using TCP/IP.
UDP
Communicate using UDP/IP.