Omron W343-E1-07 - Manual (Page 175)

154
Using Socket Services with CMND(490) Section 6-3
Program Memory Maps
The send and receive data and bits (flags) used by the program are shown in
the following diagrams.
DM Area
000AH 0004H 0001H 0110H 0000H 0032H
0 1 2 3 4 5 6 7 8 9
D00000
Number bytes to receive: 4 bytes
Remote Ethernet Unit designation
Network address: 01
hex
Node number: 01
hex
Unit address: 10
hex
FINS communications port: Port #0
Response monitor time: 5 s
CMND(490) control data for UDP OPEN REQUEST
Number of bytes to send: 10 bytes (000A
hex
)
0008H 0004H 0001H 0110H 0000H 0032H
0 1 2 3 4 5 6 7 8 9
D00010 CMND(490) control data for UDP CLOSE REQUEST
Number bytes to receive: 4 bytes
Number of bytes to send: 8 bytes
Number bytes to receive: 4 bytes
0074H 0004H 0001H 0110H 0000H 0032H
0 1 2 3 4 5 6 7 8 9
D00020 CMND(490) control data for UDP SEND REQUEST
Command format = 14 bytes + 100 bytes send data
Number of bytes to send: 114 (0072
hex
) bytes
Number bytes to receive: 4 bytes
000CH 0004H 0001H 0110H 0000H 0032H
0 1 2 3 4 5 6 7 8 9
D00030 CMND(490) control data for UDP RECEIVE REQUEST
Number of bytes received is specified in command data.
Number of bytes to send: 12 bytes (000C
hex
)
2701H 0001H 8203H FC00H 1000H
0 1 2 3 4 5 6 7 8 9
D01000 UDP OPEN REQUEST command data
Command code
UDP socket number (Ethernet Unit socket number): set to 1
Results storage area: set to D01020 (03FC
hex
)
(Refer to page 198 for details on formats for socket services)
Local port number: set to 4096 (1000
hex
)