Mitsubishi Electric MELSEC iQ-RJ71C24-R2 - Page 193

7 COMMUNICATIONS BY THE MODEM FUNCTION
7.4 Startup of the Modem Function
191
7
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
0 3000
Y11
Y10
(ON)
X11
X12
*
*
Y11
Y10
(ON)
X11
(OFF)
X12
X13
(OFF)
*
Buffer memory for
connection
(Un\G53)
Normal completion
Connection
request
Modem initialization
completion
Dialing
Connecting
RS-232 CD terminal
Result code
receive
Set "Display a result code using
the AT command" in the host station
side modem.
Dial
Abnormal completion
Connection
request
Modem initialization
completion
Dialing
Connecting
Initialization/connection
abnormal completion
RS-232 CD terminal
Dial Dial DialDial (Dialing)
Retry (In case of three times)
Connection channel and retry operation are performed using the buffer memory setting.