CV500ETN01 Omron, CV500ETN01 Datasheet - Page 113

• Manufacturer Part Number: CV500ETN01
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500ETN01

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

DM Area Allocations
TCP Socket No. (1 to 8): Number of Bytes Received (Ethernet Unit to CPU Unit)
TCP Socket No. (1 to 8): Connection Status (Ethernet Unit to CPU Unit)
Socket Services Parameter Area 1 to 8 (Ethernet Unit to CPU Unit)
88
Offset
+0
+1
+2
+4
+5
+6
+8
+9
m+9 to m+16
Socket
No. 1
m+18
m+19
m+20
m+21
m+22
m+23
m+24
m+25
m+26
m+27
15 14 13 12 11 10
...
...
...
...
Socket
No. 8
m+88
m+89
m+90
m+91
m+92
m+93
m+94
m+95
m+96
m+97
For each TCP socket, the number of bytes of data in the reception buffer is
stored in one word. A maximum of 4,096 bytes of data can be held in the
reception buffer, but a value of only up to the maximum value (1,984 bytes)
that can be set for receive requests by manipulating control bits or using
CMND(490) is stored.
The Data Received Flag in the CIO Area turns ON and OFF linked to this
word. This area is given a value of 0000 hex when a receive request is exe-
cuted by manipulating control bits or using the CMND(490) instruction. If any
data remains in the reception buffer after the receive request processing is
completed, the remaining number of bytes is stored and the Data Received
Flag turns ON again.
Before a receive request is executed, a check is performed to confirm that the
required data is available.
The connection status for each TCP socket is stored by code in this word. For
details, refer to Appendix C TCP Status Transitions.
When socket services are requested by control bit manipulation, the settings
must be made in advance in a Socket Service Parameter Area. The parame-
ters used will vary depending on the service requested. For details, refer to
Operation Manual, Construction of Applications, SECTION 6.
m+1 to m+8
0000 hex: 0 bytes
07C0 hex: 1,984 bytes
15 14 13 12 11 10 9
15 14 13 12 11 10
9
Socket option
Number of send/receive bytes (0000 to 07C0 Hex (1984))
Remote UDP/TCP port number (0000 to FFFF Hex)
Local UDP/TCP port number (0000 to FFFF Hex)
(Same as FINS variable area designation method.)
8
7
Timeout value (0000 to FFFF Hex)
Number of Bytes Received (0000 to 07C0 hex)
6
(00000000 to FFFFFFFF Hex)
Send/receive data address
5
Remote IP address
Response code
4
8
9
3
7
UDP/TCP socket number (1 to 8)
8
2
6
7
1
TCP connection status
5
0
6
4
5
3
4
2
3
1
Section 4-2
2
0
1
0