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CIO Area Allocations Section 4-3
Unit Control Switches (CPU Unit to Ethernet Unit)
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 software switch settings on 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
turning ON this switch. This can be used for operations such as error process-
ing.
Be careful not to force-close sockets during communications, or an error will
occur. 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 automati-
cally turned OFF by the Unit.
Bit Switch Status Manipulated
by
Unit operation Reference
0 (Not used.) --- --- --- ---
1 Internode Test Start Switch ON User Executes internode test while ON. 9-3 Intern-
ode Test
OFF User Stops internode test.
2 Socket Force-close Switch ON User All sockets are forcibly closed when this
bit turns ON.
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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 Send-
ing Mail
OFF Unit Turned OFF by Unit after user mail has
been sent.
4 to 15 (Not used.) --- --- --- ---
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