15 Ethernet
15-40
CP2E CPU Unit Software User’s Manual(W614)
Note Do not forcibly manipulate the above status flags during socket service is used.
z Socket Service Request Switches 1 to 3
Bit Flag Status Manipulated
by
Unit operation Access
0 Opening Flag ON Unit ON during open processing. (Turns ON when
open request is received.)
Read only
OFF Unit OFF when open processing has been com-
pleted.
1 Receiving Flag ON Unit ON during receive processing. (Turns ON
when receive request is received.)
OFF Unit OFF when receive processing has been com-
pleted.
2 Sending Flag ON Unit ON during send processing. (Turns ON when
send request is received.)
OFF Unit OFF when send processing has been com-
pleted.
3 Closing Flag ON Unit ON during close processing. (Turns ON when
close request is received.)
OFF Unit OFF when close processing has been com-
pleted.
4 to 12 (Not used.) --- --- --- ---
13 Data Received Flag ON Unit ON when data from a remote node has been
received at an open TCP socket.
Read only
OFF Unit OFF when receive processing has been
requested for an open TCP socket.
14 Results Storage
Error Flag
ON Unit CP2E CPU Units are supported by CX-One
version 4.51 or higher and CX-Programmer
version 9.72 or higher.
OFF Unit Turns OFF when the next request is received.
15 TCP/UDP Open
Flag
ON Unit ON when open processing has been com-
pleted.
OFF Unit OFF when close processing has been com-
pleted. (Stays OFF for abnormal open pro-
cessing completion.)
15 14 13 12 11 10 9 8
7 6 5 4 3 2 1 0
UDP Open Request Switch
TCP Passive Open Request Switch
TCP Active Open Request Switch
Send Request Switch
Receive Request Switch
Close Request Switch
A571 to A572
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