Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual page 741

■Control data
Device Item
(s2)+0 Execution type/
completion type
(s2)+1 Completion status
(s2)+2 Application setting area
(s2)+3 Host station port number
(s2)+4 Target device IP
*2
(s2)+5 address
(s2)+6 Target device port
*2
number

(s2)+7 to
(s2)+9
*1 User: Data to be set before the execution of the instruction. System: The CPU module stores the execution result of the instruction.
*2 When Unpassive open is selected, the target device IP address and target device port number are ignored.
*3 Of the host station port numbers, 1 to 1023 (0001H to 03FFH) are generally reserved port numbers and 61440 to 65534 (F000H to
FFFEH) are used by other communication functions. Thus, using 1024 to 5548 and 5570 to 61439 (0400H to 15ACH and 15C2H to
EFFFH) as the port numbers is recommended. Do not specify 5549 to 5569 (15ADH to 15C1H) since they are used by the system.
Description
Specify whether to use the parameter value set using the engineering
tool or to use the set values of the control data (s2)+2 to (s2)+9 during
the open processing of the connection.
0000H:
The open processing is performed with the settings configured using
"External Device Configuration" of the engineering tool.
8000H:
The open processing is performed with the set values of the control
data (s2)+2 to (s2)+9.
The status at the completion of the instruction is stored.
0000H: Completed successfully
Other than 0000H: Completed with an error (error code)
For error codes, refer to MELSEC iQ-F FX5 User's Manual
(Ethernet Communication).
b15b14 b13 b11 b10 b9 b8 b7 to
(s2)+2 [4] 0 [3] [2][1]
[1] Communication method (protocol)
0: TCP/IP
1: UDP/IP
[2] Socket communications function procedure
0: Communication protocol
1: Socket communications (No procedure)
[3] Communication protocol setting
0: Do not use the communication protocol support function (use the
socket communications function)
1: Use the protocol support function
[4] Open method
00: Active open or UDP/IP
10: Unpassive open
11: Fullpassive open
Specify the host station port number.
Specify the IP address of the target device.
Specify the port number of the target device.
Use prohibited
Setting range
0000H
8000H

As shown on the left
to b0
0
1 to 5548, 5570 to 65534
(0001H to 15ACH, 15C2H to
FFFEH)
1 to 3758096382
(00000001H to DFFFFFFEH)
(FFFFFFFFH: Simultaneous
broadcast)
1 to 65534 (0001H to
FFFEH)
(FFFFH: Simultaneous
broadcast)

10 BUILT-IN ETHERNET FUNCTION INSTRUCTIONS
10.1 Open/Close Processing Instructions
*1
Set by
User
System
User
*3
System
739
10