Mitsubishi Electric MELSEC iQ-R Series User Manual page 193

Input/output signals used for line connection
'Connection request' (Y11), 'Dialing' (X11), 'Connection' (X12) and 'Initialization/connection abnormal completion' (X13) are
used.
Ex.
When performing the line connection only from the C24 side after the completion of initialization
Buffer memory for
connection
(Un\G53)
Normal completion
Connection
Y11
request
Modem initialization
Y10 (ON)
completion
Dialing X11
Connecting X12
RS-232 CD terminal
Abnormal completion
Connection
Y11
request
Y10
Modem initialization
(ON)
completion
Dialing X11
(OFF)
Connecting X12
Initialization/connection
X13
abnormal completion
RS-232 CD terminal (OFF)
0
Dial
Dial
* Connection channel and retry operation are performed using the buffer memory setting.
3000
Result code * Set "Display a result code using
receive *
the AT command" in the host station
side modem.
Dial Dial
Retry (In case of three times)
7 COMMUNICATIONS BY THE MODEM FUNCTION
7.4 Startup of the Modem Function
Dial (Dialing)
7
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