185
FINS Communications
Section 6-5
FINS/TCP CONNECTION STATUS READ: 2731
Reads the FINS/TCP connection status.
Command Block
Response Block
Parameters
FIFINS/TCP Connection No. (Command, Response)
Command: Specifies, in two bytes, the FINS/TCP connection number (1 to 3)
for which the status is to be read.
Response: Specifies the FINS/TCP connection number (1 to 3) for which the
status was read.
Connection Service (Response)
Specifies the service that is being used for the FINS/TCP connection as a
number.
0003: FINS/TCP server
0004: FINS/TCP client
Local IP Address (Response)
Specifies the IP address for the local node in hexadecimal.
Local TCP Port Number (Response)
Specifies the TCP port number for the local node.
Remote IP Address (Response)
Specifies the IP address for the remote node in hexadecimal.
Remote TCP Port Number (Response)
Specifies the TCP port number for the remote node.
TCP Transitions (Response)
Specifies the TCP connection status using the following numbers.
For details on TCP status changes, refer to Appendix H TCP Status Transi-
tions.
27 31
FINS/TCP
connection No.
Command
code
Connection
service
TCP transition
27 31
Command
code
Local TCP
port number
Remote IP
address
Remote TCP
port number
Response
code
Local IP address
FINS/TCP
connection
No.
Number
Status
Meaning
00000000
CLOSED
Connection closed.
00000001
LISTEN
Waiting for connection.
00000002
SYN SENT
SYN sent in active status.
00000003
SYN RECEIVED
SYN received and sent.
00000004
ESTABLISHED
Already established.
00000005
CLOSE WAIT
FIN received and waiting for completion.
00000006
FIN WAIT 1
Completed and FIN sent.
00000007
CLOSING
Completed and exchanged FIN. Awaiting ACK.
00000008
LAST ACK
FIN sent and completed. Awaiting ACK.
Summary of Contents for CP1L-EL20DR-D
Page 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Page 4: ...iv...
Page 10: ...x...
Page 22: ...xxii...
Page 34: ...xxxiv Software Licenses and Copyrights 7...
Page 192: ...158 Trial Operation and Debugging Section 5 3...
Page 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Page 666: ...632 Trouble Shooting Section 11 7...
Page 696: ...662 Standard Models Appendix A...
Page 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Page 836: ...802 PLC Setup Appendix G...
Page 838: ...804 TCP Status Transitions Appendix H...
Page 840: ...806 Ethernet Network Parameters Appendix I...
Page 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Page 844: ...810 Ethernet Specifications Appendix K...
Page 851: ...Index 817 work words 118 write protection 447...
Page 852: ...818 Index...
Page 854: ...820 Revision History...
Page 855: ......