191-3 RS-232CTo control the laser marker by communication commands, use RS-232C or Ethernet connection.For the control by communication commands, configure the communication settings in advance at the system settings ofLaser Marker NAVI smart. Refer to “1-1-3 Settings before external control” (P.14).ンㄆㄇㄆㄓㄆㄏㄆ• The laser marker can be controlled by I/O and communication commands combined.1-3-1 Interface specifications and connectionTo execute command communication control with RS-232C, connect the RS-232C port on the controller to the externalcontrol device.5 91 6LP-GS seriesRear of ControllerOn the laser markercontroller sideLP-RC/LP-RF/LP-RV seriesRear of ControllerRS-232C Port(female)Connector position Connector specifications Model Manufacturer nameOn the laser markersideD-sub 9-pin, femaleScrew type: No.4-40UNC inch screw, female- -User side D-sub 9-pin, maleScrew type: No.4-40UNC inch screw, maleRecommended connectorXM3A-0921OMRONCorporationRecommended connector coverXM2S-0911⿎ Signals and Details of RS-232C connectorTerminal No. Signal Description1 N.C. Do not use this signal.2 TxD (SD) Transmission data: Connect RxD (RD) of the external control device3 RxD (RD) Receiving data: Connect TxD (SD) of the external control device4 N.C. Do not use this signal.5 GND (SG) Signal ground: Connect GND (SG) of the external control device6 N.C. Do not use this signal.7 N.C.8 N.C.9 N.C.ンㄆㄇㄆㄓㄆㄏㄆ• On the system settings screen, select communication command control or code reader linkage function that you usewith the RS-232C port.• The GND pin of the RS-232C connector is common to the body of the laser marker.ME-LP-GS-SR-COMP-3