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Command/Response Reference Section 11-3
the socket specified in the UDP socket number, and send packets are distrib-
uted from the UDP socket to this port. The port number specified as the FINS
UDP port number (default value 9600) cannot be used.
Response Codes
Results Storage Area Response Codes
11-3-10 UDP RECEIVE REQUEST
Requests that data be sent from a UDP socket.
Command Block
Response Block
Results Storage
Format
Parameters
UDP Socket Number
(Command)
The UDP socket number to receive data specified as 2 bytes between 1 and
8.
Results Storage Area
(Command)
The area in which the results of the command execution are stored. The first
byte specifies the memory area and data type (variable type). The 2nd to 4th
bytes specify the beginning address of the results storage area. Refer to
page 216 for details about the variable types and addresses that can be spec-
ified.
Response code Description
0000 Normal
0105 Local IP address setting error
0302 CPU Unit error; execution not possible.
1001 Command too large
1002 Command too small
1100 UDP socket number is out of range.
Local UDP port number is 0.
1101 The variable type for the results storage area is out of range.
1103 Non-zero bit address specified for the results storage area.
220F Specified socket is already open or is being closed.
2211 High traffic at Unit; cannot execute service.
Response code Description
0000 Normal
003E Internal buffer cannot be reserved due to high receive load
(ENOBUFS).
0049 Duplicate UDP port number (EADDRINUSE).
0227
Command
code
UDP
socket
number
Results storage area Number of
reception
bytes
Timeout
value
0227
Command
code
Response
code
code
Results Source IP Source Number of
storage address UDP port reception
response number bytes
Received data
Received bytes