User`s manual

132
(2) Initial settings by GX Configurator-SC (set in the setting screen for modem
function system)
(a) Perform initial settings on the interface side that use the modem function as
described in Page 105, Section 3.3.6:
The following table shows the default settings in the "Modem function system setting" screen and whether
setting is possible or impossible in each type of communications.
●: Required item, : Setting possible, : Setting not required
*1 For details on how to register the data No. for initialization, see Page 134, Section 3.4.3.
For details on how to register the data No. for connection, see Page 139, Section 3.4.4.
*2 The "Modem initialization time DR signal valid/invalid designation" designates whether the status of the DR (DSR) signal
output is valid or invalid at the startup of the Q series C24. When the DR (DSR) signal = ON is output from the modem,
register "valid" for this item. When the DR (DSR) signal = ON is not output from the modem, register "invalid" for this
item.
*3 Even if the programmable controller CPU on the Q series C24 loading station (local station) becomes STOP status
under the following circumstances, the line (telephone) with the partner devices will be left connected.
In order to prevent the line from being left connected when the line is not in use, be sure to make the appropriate
settings.
• When the programmable controller CPU is stopped when the connected signal (X12) is at the ON status. This
occurs because the program write after remote stop is enabled.
• When the programmable controller CPU performs an error stop during self-diagnosis, etc.
When setting the No-communication interval time as infinite wait (set value = 0), be sure to perform line disconnection
processing after the data has been communicated.
If the line is left connected for long periods of time without performing line disconnection after data has been communicated,
not only will telephone bills be applied, but it may violate electronic communication business laws.
"Modem function system setting" screen setting items
Data communications
(MC non procedure,
bidirectional)
Notification
GX Developer
(For connection
to MELSOFT
products)
Buffer memory
address
Modem connection channel designation ●●●46 (2EH)
Notification execution designation  ●  47 (2FH)
Number of connection retries 48 (30H)
Connection retry interval designation (unit: s) 49 (31H)
Initialization/connection timeout time designation (unit: s) 50 (32H)
Number of initialization retries designation 51 (33H)
Data No. for initialization designation
*1
●●●52 (34H)
Data No. for connection designation
*1
●● 53 (35H)
GX Developer connection designation ● 54 (36H)
No-communication interval time designation (Unit: m)
*3
55 (37H)
RS/CS control yes/no designation 56 (38H)
Modem initialization time DR signal valid/invalid designation
*2
8200 (2008H)
Wait time of notification (Unit: s) 8202 (200AH)
Circuit disconnect wait time (PLC CPU watch use) (Unit: s) 8206 (200EH)
Remote password mismatch notification count designation 8204 (200CH)
Remote password mismatch notification accumulated count
designation
8205 (200DH)
Auto modem initialization designation 8199 (2007H)
Callback function designation 8193 (2001H)
Callback denial notification accumulated count designation 8194 (2002H)
Data No. for Callback designation 1 to 10 
8449 to 8458
(2101H to 210AH)