Omron SYSMAC CP Series, User Manual

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15-43
15 Ethernet
CP2E CPU Unit Software User’s Manual(W614)
15-5 Soc
ket Ser
vic
es
15
15-5-6 D
ata Memor
y
Are
a Alloca
tions
z
Socket Services Parameter Area 1 to 3
When socket services are requested by control bit manipulation, the settings must be made in
advance in a Socket Service Parameter Area. The parameters used will vary depending on the ser-
vice requested.
The following table shows the parameters that are required for each service and the use of the
parameters by the socket service.
z
UDP Socket Services
Note W: Written by user
RW: Written by user at execution and then read for results at completion
R:
Read by user for results at completion
---: Not used.
Parameter Settings
Parameter No. of
words
Range
(decimal values in parentheses)
Socket service
UDP
open
UDP
receive
UDP
send
UDP
close
Socket option 1 Specified bit --- --- --- ---
UDP/TCP socket No. 0001 to 000 3 hexadecimal
(1 to 3 )
W W W W
Local UDP/TCP port No. 1 0000 to FFFF hexadecimal
(0 to 65,5
3 5)
W --- --- ---
Remote IP address 2 00000000 to FFFFFFFF
hexadecimal
(0.0.0.0 to 255.255.255.255) --- R W ---
Remote UDP/TCP port No. 1 0000 to FFFF hexadecimal
(0 to 65,5
3 5)
--- R W ---
Number of bytes to
send/receive 1 0000 to 0400 hexadecimal
(0 to 1,024 bytes) --- RW RW ---
Send/Receive data address 2 Memory area address --- W W ---
Time out time
(Unit: 100 ms) 1 0000 to FFFF hexadecimal
(0 to 65,5
3 5)
(0: No limit, 0.1 to 6,55 3 .5 s)
--- W --- ---
Response code 1 --- R R R R
Offset Socket
N o. 1
Socket
N o. 3
Socket option UDP/TCP socket n u m b er (1 to 3)
Local UDP/TCP port n u m b er (0000 to FFFF Hex)
Remote IP address
(00000000 to FFFFFFFF Hex)
Nu m b er of send/recei v e b ytes (0000 to 0400 Hex (1024))
Send/recei v e data address
(Same as FI N S v aria b le area designation method.)
Timeo u t v al u e (0000 to FFFF Hex)
Response code
Remote UDP/TCP port n u m b er (0000 to FFFF Hex)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
...
+0
+1
+2
+4
+5
+6
+8
+9
m+8 m+28
...
m+9 m+29
m+10
m+11
m+30
m+31
m+12 m+32
...
m+13 m+33
m+14 m+34
m+15 m+35
m+16 m+36
m+17 m+37
...