User`s manual
104
(2) Function and description of each I/O signal
The descriptions hereafter show an example in which I/O numbers of the Q series C24 are assigned to X/Y00 to X/Y1F.
I/O signal Signal name Function/description Reference
X10
Modem initialization
completion
Indicates normal completion of the Q series C24's initialization of the modem/TA
connected to itself according to the initialization data designated.
Page 144, Section
3.4.5
X11 Dial in progress
Indicates that the Q series C24 is dialing (connection processing) the partner side
according to the data for connection designated.
Page 148, Section
3.4.6
X12 Connection in progress
• Indicates normal completion of the line-connection processing from or to the partner
side.
• When this signal is on, data communication with the destination is possible
(notification is not possible).
X13
Initialization/connection
abnormal completion
• Indicates abnormal completion of the modem/TA initialization or line connection
processing (dialing) to the destination.
• Check the cause of the abnormal completion in the modem error code storage area
(address: 221H) and remove the cause.
Page 144, Section
3.4.5, Page 148,
Section 3.4.6
X14
Modem disconnection
completion
Indicates that the line for data communication with the destination has been
disconnected.
Page 161, Section
3.4.8
X15
Notification normal
completion
Indicates the normal completion when performing the notification processing to the
destination.
Page 154, Section
3.4.7
X16
Notification abnormal
completion
• Indicates abnormal completion when the notification processing is performed with the
destination.
• Check the cause of the abnormal completion in the modem error code storage area
(address: 221H) and remove the cause.
Y10
Modem initialization request
(standby request)
• Indicates the initialization request to the modem connected to the local station Q
series C24.
• Turn on the initialization-request signal after designating the initialization data to the
buffer memory when it is not set with GX Configurator-SC.
Page 144, Section
3.4.5
Y11 Connection request
• Indicates the connection request (dialing) to enable data communication with the
destination.
• Turn on the connection request signal after designating the data for connection to the
buffer memory when it is not set with GX Configurator-SC.
• If the modem/TA connected to the local station is not initialized, the Q series C24-
side modem is initialized as well prior to dialing, according to the initialization data
designated.
Page 148, Section
3.4.6
Y12
Modem disconnection
request
Indicates a line-disconnection request from the partner side upon completion of data
communication.
Page 161, Section
3.4.8
Y14 Notification-issued request
• Indicates the notification request to the partner side.
• Turns on before completing the Q series C24-side modem/TA initialization is
complete.
• Turns off the notification-issued request signal after designating the data for
connection in the buffer memory when it is not set with GX Configurator-SC.
Page 154, Section
3.4.7