OverviewFP2/FP2SH1 − 171.3 Expansion Function1.3.2 Connection of MODEM1:1 communicationConnections to a MODEM can bemade using the COM port.1:N communicationUsing the C-NET adapter enables MODEMs to beconnected for multiple programmable controller.Commercially availableRS232C cableMODEM MODEMMODEM MODEMPublic linePublic lineCommercially availableRS232C cableTwo-core cable (RS485)(VCTF0.75 × 2C)FP2/FP2SHFP2/FP2SHS2 typeS2 typeFP2/FP2SHC-NET adapter(AFP8536/AFP8532)A maximum of 32 stations can be connected.COM portPCPCThe CPU of the FP2/FP2SH includes a COM (RS232C) port and TOOL (RS232C)port as standard equipment, making it possible to connect a MODEM to perform pro-gramming and computer linking from a remote location using a public telephone line.When the power supply of FP2/FP2SH is turned on, it will verify whether a MODEM isconnected, and, if a MODEM is, it will automatically transmit the AT command to set theMODEM for automatic reception.Since the reading and writing of the relay conditions and register contents of the pro-grammable controller can be performed from the host computer, this function isapplicable for remote monitoring systems.When using the TOOL port, you can use programming tool software (NPST-GR/FPWINGR) and perform reading and writing of the programmable controller program and main-tenance operations via MODEM.During 1:1 communication using the COM port, an error alarm can be issued from theprogrammable controller.