List Of Input/Output Signals For The Modem Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

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
I/O signal Signal name
X10 Modem initialization
completion
X11 Dialing
X12 Connection
X13 Initialization/connection
abnormal completion
X14 Modem disconnection
completion
Y10 Modem initialization request
(standby request)
Y11 Connection request
Y12 Modem disconnection request
The descriptions hereafter show an example in which I/O numbers of the C24 are assigned to X/Y00 to X/Y1F.
7 COMMUNICATIONS BY THE MODEM FUNCTION
160
7.3 Specifications of Modem Function
Function/description
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.
Indicates that C24 is dialing (performing connection processing) the
target device side according to the data for connection designated.
• 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.
• 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.
Indicates that the line for data communication with the target device
has been disconnected.
• 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.
• 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.
Indicates a line disconnection request to the target device upon
completion of data communication.
Description
Page 185 Initialization of modem/TA
(terminal adapter)
Page 190 Line connection
Page 185 Initialization of modem/TA
(terminal adapter)
Page 190 Line connection
Page 202 Line disconnection
Page 185 Initialization of modem/TA
(terminal adapter)
Page 190 Line connection
Page 202 Line disconnection