6- 17Installation Conditions and Method6(2) When communicating through the RS-422Specify the 4-wire or 2-wire RS-422 system on the [SERIAL COMM.] menu (see page 11-17).16FL1FL2Memory protection 1Memory protection 2RS-232C/422 converterZ-101HEIV-S20 (9-pin D-sub)4789FGTATBRARBPin No.SHIELDRD(+)RD(–)TD(+)TD(–)FGTDRDSG1237(RS-232C)Shielded twisted-pair cableTransmitted data(IV-S20 - Personal computer)Received data(Personal computer -IV-S20)Connector frame groundPersonalcomputerFGTDRDSGSignalnameSignalname15 mor less(RS-422)1 km or lessFunctionConnectorcase22222 2-wire systemSHIELDRD(+)RD(—)FGTDRDRSSG12347FGTDRDRSSG16FL1FL2Memory protection 1Memory protection 2RS-232C/422 converterZ-101HEIV-S20 (9-pin D-sub)4789FGTATBRARBPin No.(RS-232C)Shielded twisted-pair cableTransmitted data(IV-S20 - Personal computer)Received data(Personal computer -IV-S20)Connector frame groundPersonalcomputerSignalnameSignalname15 mor less(RS-422)1 km or lessFunctionConnectorcase11111 4-wire system5 19 6(9-pin D-sub female)RS-422Connector field4789TATBRARBFGOutputInputTransmitted data(IV-S20 - Personal computer)Received data(Personal computer - IV-S20)Communicationstandard SignalnamePin No. Details Direc-tionFrame ground
