Mitsubishi Electric MELSEC iQ-R Series - Page 1102

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8 BUILT-IN ETHERNET FUNCTION INSTRUCTIONS
8.2 Socket Communications Instructions
■Control data
Processing details
Reads the connection information of the connection specified by (s1).
Operation error
When completed with an error, an error code is stored in the completion status (s2)+1.
For the error code stored in the completion status (s2)+1, refer to the following.
 MELSEC iQ-R Ethernet User's Manual (Application)
Operand: (s2)
Device Item Description Setting range Set by
+0 System area  
+1 Completion status The completion status is stored upon completion of the instruction.
• 0000H: Completed successfully
• Other than 0000H: Completed with an error (error code)
 System
Operand: (d)
Device Item Description Setting range Set by
+0
+1
IP address of external
device
Store the IP address of an external device. 00000001H to
FFFFFFFFH
00000000H: No
communication
destination
(FFFFFFFFH:
simultaneous
broadcast)
System
+2 Destination port
number
Store the destination port number of an external device. 0001H to FFFFH
(FFFFH:
Simultaneous
broadcast)
System
+3 Own station port
number.
Store the own station port number. 0001H to 1387H
1392H to FFFEH
System
+4 Connection use
application
Store the usage of a connection.
(1) Communication method (protocol) (b8)
• 0: TCP/IP
• 1: UDP/IP
(2) Socket communications function procedure (b9)
• 1: No procedure (fixed)
(3) Open method (b15, b14)
• 00: Active open or UDP/IP
• 10: Unpassive open
• 11: Fullpassive open
 System
Error code
(SD0)
Description
3405H The connection number specified by (s1) is a value other than 1 to 16.
b15 b14 b9 b8
0 (1)
(2) 0
b0
……
(3)
(d)+4