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A-109
Appendices
CP2E CPU Unit Software User’s Manual(W614)
A
-6 Eth
ernet Fu
nctio
n
s
App
A-6-1 TCP Status T
ransitions
A-6
Ethernet Functions
A-6-1
TCP Status Transitions
Number
Status
Meaning
00000000
CLOSED
Connection closed.
00000001
LISTEN
Waiting for connection.
00000002
SYN SENT
SYN sent in active status.
0000000
3
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.
0000000
8
LAST ACK
FIN sent and completed. Awaiting ACK.
00000009
FIN WAIT 2
Completed and ACK received. Awaiting FIN.
0000000A
TIME WAIT
After closing, pauses twice the maximum segment life (2MSL).
rc
v
FI
N
snd ACK
CLOSE
rc
v
ACK of FI
N
rc
v
ACK of SY
N
CLOSED
LISTE
N
SY
N
RECEIVED
SY
N
SE
N
T
ESTABLISHED
CLOSI
N
G
CLOSED
W
AIT
CLOSED
snd SY
N
, ACK
Passi
v
e OPE
N
CLOSE
ACTIVE OPE
N
snd SY
N
snd SY
N
SE
N
D
CLOSE
rc
v
SY
N
snd ACK
rc
v
SY
N
, ACK
snd ACK
snd FI
N
CLOSE
snd ACK
rc
v
FI
N
rc
v
ACK of FI
N
snd FI
N
rc
v
FI
N
rc
v
ACK of FI
N
Timeo
u
t=2MSL
LAST-ACK
CLOSE
snd FI
N
TIME
W
AIT
FI
N
W
AIT-1
FI
N
W
AIT-2
rc
v
SY
N
snd ACK
Summary of Contents for SYSMAC CP Series
Page 3: ......
Page 32: ...1 Overview 1 4 CP2E CPU Unit Software User s Manual W614 ...
Page 44: ...3 CPU Unit Operation 3 8 CP2E CPU Unit Software User s Manual W614 ...
Page 116: ...6 I O Allocation 6 8 CP2E CPU Unit Software User s Manual W614 ...
Page 144: ...7 PLC Setup 7 28 CP2E CPU Unit Software User s Manual W614 ...
Page 170: ...10 Interrupts 10 14 CP2E CPU Unit Software User s Manual W614 ...
Page 200: ...11 High speed Counters 11 30 CP2E CPU Unit Software User s Manual W614 ...
Page 272: ...12 Pulse Outputs 12 72 CP2E CPU Unit Software User s Manual W614 ...
Page 278: ...13 PWM Outputs 13 6 CP2E CPU Unit Software User s Manual W614 ...
Page 460: ...18 Programming Device Operations 18 28 CP2E CPU Unit Software User s Manual W614 ...
Page 576: ...Revision 2 CP2E CPU Unit Software User s Manual W614 ...
Page 577: ......