4-3SectionCIO Area Allocations
55
When a socket service request is executed by control switch manipulation, it is
the following bits that are manipulated. For details, refer to 6-2 Using Socket Ser-
vices with Socket Service Request Switches.
UDP Open Request Switch
TCP Passive Open Request Switch
TCP Active Open Request Switch
Send Request Switch
Receive Request Switch
Close Request Switch
7 6 5 4 3 2 1 0
n+19 to n+22
15 14 13 12 11 10 9 8
Bit Switch Status Manipulated
by
Unit operation Page
8 0 UDP Open
ON User UDP socket opened when switch is turned ON.
98 to
Request Switch
OFF Unit Unit turns OFF switch when open processing has
been completed (i.e., when a connection has been
made).
103
9 1 TCP Passive Open
Request Switch
ON User Passive TCP socket opened when switch is turned
ON.
OFF Unit Unit turns OFF switch when open processing has
been completed (i.e., when a connection has been
made).
10 2 TCP Active Open
ON User Active TCP socket opened when switch is turned ON.
Request Switch
OFF Unit Unit turns OFF switch when open processing has
been completed (i.e., when a connection has been
made)
11 3 Send Request
Switch
ON User Send processing executed when switch is turned ON.
(The protocol (TCP/UDP) is determined when the
socket is opened.)
OFF Unit Unit turns OFF switch when send processing has
been completed.
12 4 Receive Request
Switch
ON User Receive processing executed when switch is turned
ON.
(The protocol (TCP/UDP) is determined when the
socket is opened.)
OFF Unit Unit turns OFF switch when receive processing has
been completed.
13 5 Close Request
Switch
ON User Close processing executed when switch is turned
ON.
(The protocol (TCP/UDP) is determined when the
socket is opened.)
OFF Unit Unit turns OFF switch when close processing has
been completed.
14 6 (Not used.) --- --- --- ---
15 7 (Not used.) --- --- --- ---
Socket Service Request
Switches 1 to 8 (CPU Unit
to Ethernet Unit)
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