Udp Open Request - Omron CS1W-ETN01 Operation Manuals

Command/Response Reference

11-3-9 UDP OPEN REQUEST

Command Block
Response Block
Results Storage Format
Parameters
UDP Socket Number
(Command)
Results Storage Area
(Command)
Local UDP Port Number
(Command)
Response Codes
Results Storage Area Response Codes
Requests processing to open a socket.
27 01
Command UDP Results storage area
code socket
number
27 01
Command Response
code code
Results storage
response code
The UDP socket number to be opened specified as 2 bytes between 1 and 8.
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 192 for
details about the variable types and addresses that can be specified.
The UDP port number for communications with the socket is specified as 2 bytes
(0 cannot be specified). Packets received at this port are distributed to the socket
specified in the UDP socket number, and send packets are distributed from the
UDP socket to this port. The port number specified as the FINS UDP port num-
ber (default value 9600) cannot be used.
Response code
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
0000 Normal
003E Internal buffer cannot be reserved due to high receive load
(ENOBUFS).
0049 Duplicate UDP port number (EADDRINUSE).
Section
Local UDP
port number
Description
Description
11-3
199