17: USER COMMUNICATION INSTRUCTIONS« FC4A MICRO SMART USER ’S MANUAL » 17-3RS232C User Communication System SetupUser Communication Cable 1CFC2A-KP1C2.4m (7.87 ft.) longTo RS232C PortAttach a proper connector to theopen end referring to the cableconnector pinouts shown below.Cable Connector PinoutsNote: When preparing a cable for port 1, keep pins 6 and 7 open. If pins 6 and 7 are connected together, user com-munication cannot be used.Pin Port 1 Port 2 AWG# Color1 NC (no connection) RTS (request to send) 28 Twisted Black2 NC (no connection) DTR (data terminal ready) 28 Yellow3 TXD (transmit data) TXD (transmit data) 28 Blue4 RXD (receive data) RXD (receive data) 28 Green5 NC (no connection) DSR (data set ready) 28 Brown6 CMSW (communication switch) SG (signal ground) 28 Gray7 SG (signal ground) SG (signal ground) 26 Twisted Red8 NC (no connection) NC (no connection) 26 WhiteCover — — — ShieldRS232C EquipmentSignal DirectionTo Port 2RS232C Communication AdapterFC4A-PC1To Port 1 (RS232C)To Port 1 (RS232C)To Port 2RS232C Communication ModuleFC4A-HPC1To Port 2RS232C Communication AdapterFC4A-PC1To Port 1 (RS232C)HMI Base ModuleFC4A-HPH1
