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7 COMMUNICATIONS BY THE MODEM FUNCTION
7.4 Startup of the Modem Function
• When setting the no-communication interval time to 'Infinite wait' (setting value = 0), be sure to perform line disconnection
processing after the data has been communicated.
• Leaving the line connected for long periods of time without performing line disconnection after data communication has
been completed not only will run up a large telephone bill but also may violate electronic communication business laws.
■Transmissions using the modem function
All communications using the modem function are performed in full-duplex communications. Leave the following initial
settings for the interface side that uses the modem function as default.
• CD terminal check : Do not check
• Communication method: Full-duplex communications
■Processing that corresponds to output signals
The processing to the following output signals cannot be aborted.
Using the following initial settings for the modem function as default is recommended. (When any error occurred, it will end
due to the time-out.)
• Connection re-try count: 3 times
• Connection retry intervals : 180 s
• Initialization/connection timeout : 60 s
Also configure the settings for a remote password check when the remote password check is executed to the remote
password set in the module CPU. (Page 165 Details of buffer memory (for the remote password function))
Output signal Request processing name
Y10 Initialization request (standby request)
Y11 Connection request
Y12 Modem disconnection request
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