Mitsubishi Electric MELSEC iQ-R Series User Manual page 194

Ex.
When performing the initialization and the line connection from the C24 side simultaneously
Buffer memory for
initialization
(Un\G52)
Buffer memory for
connection
(Un\G53)
Normal completion
Connection request
Y11
Modem initialization
X10
completion
Dialing
X11
Connecting X12
RS-232 CD terminal
Set "Display a result code
*
using the AT command" in
the host station side modem.
Abnormal completion
Connection
Y11
request
Modem initialization X10
completion
Dialing
X11
Connecting
X12
Initialization/connection
X13
abnormal completion
RS-232 CD terminal
*1 Page 185 Initialization of modem/TA (terminal adapter)
7 COMMUNICATIONS BY THE MODEM FUNCTION
192
7.4 Startup of the Modem Function
0
(OFF)
(OFF)
* Connection channel and retry operation are performed using the buffer memory setting.
*1
3000
Modem
Dial
initialization
*1
Modem
initialization
Dial Dial Dial
Retry (In case of three times)
Result code
receive *
Dialing
Dial