Mitsubishi Electric MELSEC iQ-RJ71C24-R4 - List of Input;Output Signals for the Modem Function

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7 COMMUNICATIONS BY THE MODEM FUNCTION
7.3 Specifications of Modem Function
List of input/output signals for the modem function
The input/output signals to/from the CPU module for the modem function are shown below.
For information on the input/output signals not related to the modem function, refer to the following section.
Page 493 Input/Output Signal List
Ex.
The start I/O number of C24 is '0030'. ('n' indicates start I/O number of C24.)
Xn0 to X(n+1)F  X30 to X4F, Yn0 to Y(n+1)F  Y30 to Y4F
Function and description of input/output signal
The descriptions hereafter show an example in which I/O numbers of the C24 are assigned to X/Y00 to X/Y1F.
I/O signal Signal name Function/description Description
X10 Modem initialization
completion
Indicates the normal completion of the initialization for the modem/
TA connected to the host station side by C24 according to the
initialization data designated.
Page 185 Initialization of modem/TA
(terminal adapter)
X11 Dialing Indicates that C24 is dialing (performing connection processing) the
target device side according to the data for connection designated.
Page 190 Line connection
X12 Connection • Indicates normal completion of the line connection processing
from or to the target side.
• When this signal is ON, data communication with the target
device is possible.
X13 Initialization/connection
abnormal completion
• Indicates abnormal completion of the modem/TA initialization or
line connection processing (dialing) to the target device.
• Check the cause of the abnormal completion in the modem-error
code storage area (address: 221H) and take corrective actions.
Page 185 Initialization of modem/TA
(terminal adapter)
Page 190 Line connection
X14 Modem disconnection
completion
Indicates that the line for data communication with the target device
has been disconnected.
Page 202 Line disconnection
Y10 Modem initialization request
(standby request)
• Indicates the initialization request to the modem connected to the
C24 on the host station.
• Turn ON the initialization request signal after designating the
data for initialization to the buffer memory when it is not set with
Engineering tool.
Page 185 Initialization of modem/TA
(terminal adapter)
Y11 Connection request • Indicates the connection request (dialing) to enable data
communication with the target device.
• Turn ON the connection request signal after designating the data
for connection to the buffer memory when it is not set with
Engineering tool.
• If the modem/TA connected to the host station is not initialized,
the C24 side modem is initialized as well prior to dialing,
according to the designated data for initialization.
Page 190 Line connection
Y12 Modem disconnection request Indicates a line disconnection request to the target device upon
completion of data communication.
Page 202 Line disconnection