Mitsubishi MELSEC L Series User Manual page 165

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3 COMMUNICATIONS BY THE MODEM FUNCTION
Accessible flag is turned ON
Modem initialization enabled flag is
turned ON
Exchangeable flag with the partner
station is turned ON
Data transmission enabled flag to the
partner station turned ON
To the data registration processing for
initialization subroutine
Convert the initialization command
into pulse
Various complete flags after the
modem initialization processing is reset
To the modem initialization processing
subroutine
Convert the data communication
(transmission) command into pulse
To the data transmission processing
subroutine
Convert the reception data read request
into pulse
To the reception data read processing
subroutine
Convert the connection in progress
signal OFF into pulse
(Line disconnection from partner side)
Convert the reset command of various
request signal into pulse
To the various request signal and the
complete signal reset subroutine
Output the various complete flag status
(LED display)
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