Mitsubishi MELSEC-F User Manual page 100

5 COMMUNICATION PROCEDURE
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(9) Destination Port No.
(connection numbers 1 to 8; BFM#43, 50, 57, 64, 71, 78, 85, 92)
(a) Set the port numbers of the external devices for each connection in decimal.
(b) The port numbers of the external devices are set in the range from 1025 to
65535.
(c) Set the port numbers for the external device upon consulting a network
administrator.
(d) The following table provides some precautions that should be observed
when setting port numbers.
( in the diagram indicates a device and
Status of connection establishment
( : Port (indicates port number))
External device
Ethernet module
External device
External device
Ethernet module
External device
External device
Ethernet module
External device
Ethernet module
External device
Ethernet module
External device
Ethernet module
Important
Parameters for connections that communicate by Passive open and UDP open
must always be set from this screen when "Always wait for OPEN (communication
possible at STOP time)" is selected in the Operational settings (see Section 4.6).
indicates a port number.)
Description of connection
When connecting to multiple external devices,
set multiple port numbers for the local station.
When connecting to multiple external devices,
set a single port number for the local station.
(However, it is necessary to open a connection
for each external device)
This cannot be chosen when the local station is
Unpassive.
When connecting to multiple ports of an external
device, set multiple port numbers for the
Ethernet module.
When connecting to multiple ports of an external
device, set a single port number for the Ethernet
module. (However, it is necessary to open a
connection for each external device port)
This cannot be chosen when the local station is
Unpassive.
When connecting to the same port of an external
device, set multiple port numbers for the
Ethernet module. (However, it is necessary to
open a connection for each Ethernet module
port)
Setting multiple ports numbers for the same port
of an external device and the Ethernet module is
possible only when paring open is set.
MELSEC-F
Communication
protocol
TCP UDP
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