User`s manual

128
(2) Procedure when executing data communications
*1 Page 148, Section 3.4.6
*2 Page 154, Section 3.4.7
*3 Page 161, Section 3.4.8
0
1
2
3
5
3
*
*
*
Line disconnection completed
Line connect signal (X12)=OFF
Q Series C24
Q Series C24
or
External device
Modem Modem
Line connection request signal (Y11)=ON
Line connection
*1
Data
communications
*2
Line disconnect request signal (Y12)=ON
Line disconnection completed
Line disconnect signal (X14)=ON
Line connect signal (X12)=OFF
Modem initialization completed signal (X10)=OFF
Modem initialization
Line connection wait state
Modem initialization completion
signal (X10 = ON)
Line connection waiting side
Modem initialization
Modem initialization
Modem initialization completed signal
(X10)=ON
Line connection completed
Line connect signal (X12)=ON
Line connection completed
Line connect signal (X12)=ON
Line connection wait state
Modem initialization completed
signal (X10)=ON
Line disconnection
*3
Remote password lock processing
Remote password unlock processing
Execute line connection.
The line is disconnected after
data communications are
completed.
If data communications are to be
executed again, start the
procedure from the modem
initialization.
indicates processing
performed by the user.
Execute data communications.
Perform the processing up to the
modem/TA initialization by the
procedure in (1).
Perform the processing up to the
modem/TA initialization by the
procedure in (1).
Execute data communications.
Line connection side
If data communications is to be
executed again, carry out
communications after line
connection from the external
device.
Shows the value stored for the modem function
sequence status (Address 546 (221H)).
If MC protocol communications are carried
out with the external device, when a remote
password is set in the QCPU, unlock the
remote password.
By completing the line disconnection,
lock processing of the remote password
is executed automatically.