Connector Connections For Half-Duplex Communications - Mitsubishi MELSEC L Series User Manual

8.4 Connector Connections for Half-duplex Communications

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The following explains the functions of the connector that connects the Q series C24
and external device when half-duplex communications are used.
Connect the Q series C24 and external device based on (1) and (2) below.
(1) Connect the Q series C24 RS (RTS) signal to one of the external device half-
duplex communications signals (CS (CTS), DR (DSR), or CD (DCD) signal).
(2) Connect the Q series C24 CD (DCD) signal to one of the external device half-
duplex communications signals (RS (RTS) or ER (DTR) signal).
(3) The half-duplex communications described in this section cannot be performed
when an RS-232 and RS-422 converter is used.
(Connection example)
8 DATA COMMUNICATIONS USING HALF-DUPLEX COMMUNICATIONS
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