Mitsubishi MELSEC L Series User Manual page 134

(3) Precautions during modem/TA initialization
(4) If modem / TA initialization is executed automatically (Set by the
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2) Output count designation area (address: 185/345 (B9
The number of data for initialization units to be transmitted starting from the
location set by the output head pointer designation area is designated here.
1 : 1 data will be transmitted
to
100: 100 data will be transmitted
If the DSR signal from the modem/ TA goes OFF when modem/TA initialization is
completed (X10 goes ON), the Q Series C24 executes initialization processing
automatically in accordance with the following.
1) If the auto modem initialization is specified
Modem / TA initialization processing is executed in the initialization /
connection timeout time interval while the DSR signal is OFF without relation
to the ON/OFF status of the modem initialization request signal Y10.
2) If the auto modem initialization is not specified
The modem / TA initialization processing is executed when the DSR signal
restarts without relation to the ON/OFF status of the modem initialization
request signal Y10.
GX Configurator-SC)
By having the GX Configurator-SC perform the settings for automatic modem
initialization, modem initialization is executed automatically when the Q Series
C24 starts up.
The modem initialization completion signal (X10) goes ON.
(a) Settings for auto initialization of the modem / TA
Select "auto initialize" for the auto modem initialization designation in the
GX Configurator-SC's "Modem function system setting" screen.
(b) Cautions when initializing the modem / TA automatically
1) If the modem's initialization processing is completed abnormally, the Q
Series C24 executes the following processing.
• The initialization / connection abnormal completion signal (X13) does
not go ON.
• An error code is stored in the buffer memory's modem function error
code storage area (Address: 545 (221
• Modem initialization is retried automatically using the initialization /
connection timeout time stored in the buffer memory (address: 50
(32 ), and is repeated until initialization is completed normally.
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When modem initialization is not completed normally, the user
should perform the following, and restart the station where the Q
Series C24 is installed.
• Check the set initialization data No.
• Check the registered contents of the initialization data
corresponding to the set initialization data No. (If they are
abnormal, correct them and register them again.)
• Check if the modem's power is turned on.
3 COMMUNICATIONS BY THE MODEM FUNCTION
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