4-3
Section
CIO Area Allocations
51
Unit Control Switches (CPU Unit to Ethernet Unit)
Internode Test Start Switch
Socket Force-close Switch
Mail Send Switch
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
n
Bit
Switch
Status
Manipulated
by
Unit operation
Reference
0
(Not used.)
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---
---
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1
Internode Test Start Switch
ON
User
Executes internode test while ON.
9-3
OFF
User
Stops internode test.
Internode
Test
2
Socket Force-close Switch
ON
User
All sockets are forcibly closed when this
bit turns ON.
Page 109
OFF
Unit
Turned OFF by Unit after sockets are
closed.
3
Mail Send Switch
ON
User
User mail is sent when this bit turns ON.
8-1-3
OFF
Unit
Turned OFF by Unit after user mail has
been sent.
Sending
Mail
4 to 15
(Not used.)
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---
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Internode Test Start Switch (Bit 1)
Internode testing is executed and stopped by turning ON and OFF this switch.
The parameters for designating the remote node for testing, and so on, are set in
the allocated words in the DM Area. For details, refer to 9-3 Internode Test. The
CX-Programmer can also be used to set parameters and control internode tests.
Socket Force-close Switch (Bit 2)
All UDP and TCP sockets used for socket services can be force-closed by turn-
ing ON this switch. This can be used for operations such as error processing.
Be careful not to force-close sockets during communications, or an error will oc-
cur. After all sockets have been force-closed, the Ethernet Unit will turn the
switch OFF again. Do not attempt to forcibly manipulate this switch before it is
automatically turned OFF by the Unit.
Ports used exclusively by the Ethernet Unit will not be closed.
Mail Send Switch (Bit 3)
User mail can be sent by turning ON this switch. The contents of the user mail
are set in the CPU Bus Unit System Setup.
After the user mail has been sent, the Ethernet Unit will turn this switch OFF
again. Do not attempt to forcibly manipulate this switch before it is automatically
turned OFF by the Unit.
