Line Connection - Mitsubishi Electric MELSEC iQ-R Series User Manual

Line connection

The following explains the connection (dialing) with target devices for data communication with target devices using the
modem function.
Requirements for connection
Complete the following settings and registration in advance.
• The initial settings for C24 (Page 174 Initial settings of Serial communication module)
• The registration of the data for initialization (Page 177 Register/read/delete data for initialization)
• The registration of data for connection (Page 181 Register/read/delete data for connection)
• The initialization of the modem/TA connected to C24 side (Page 185 Initialization of modem/TA (terminal adapter))
In addition, both the initialization and line connection can be conducted simultaneously by designating the data for
initialization and data for connection to perform connection processing.
For setting of data for initialization to perform initialization and line connection simultaneously, refer to the following sections. It
is not explained in this section.
Page 174 Initial settings of Serial communication module
Page 185 Initialization of modem/TA (terminal adapter)
Registering the data for connection using Engineering tool
The number for the data for connection that is used for line connection in order to perform data communication with the target
device is registered with Engineering tool.
■When line connecting from the C24 side
Designate the registration number of the data for connection to be used for "Data No. for connection designation".
Navigation window  [Parameter]  [Module Information]  Module Name  [Module Parameter]  "Application
Settings"  "Modem function setting"
• BB8H to BD5H (3000 to 3029) : Data registered in the flash ROM by the user
• 8001H to 801FH (–32767 to –32737): Data registered in the buffer memory by the user
■When line connecting from the target device
Since the line connection processing is not necessary on the C24 side, registration of data for connection to connect the line
and number setting of data for connection are not required.
7 COMMUNICATIONS BY THE MODEM FUNCTION
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7.4 Startup of the Modem Function