2: M ODULE S PECIFICATIONS2-82 FC5A MicroSmart User’s Manual FC9Y-B1268Communication Adapters and Communication ModulesAll MicroSmart CPU modules have communication port 1 for RS232C communication. In addition, all-in-one type CPUmodules have a port 2 connector. An optional communication adapter can be installed on the port 2 connector forRS232C or RS485 communication.A communication module can be attached to any slim type CPU module to use port 2 for additional RS232C or RS485communication. When the HMI base module is attached to a slim type CPU module, a communication adapter can beinstalled to the port 2 connector on the HMI base module.When using the RS232C communication adapter or communication module for port 2, maintenance communication,user communication, and modem communication are made possible. With the RS485 communication adapter or com-munication module installed, maintenance communication, user communication, data link communication, and Modbusmaster and slave communication can be used on port 2.Communication Adapter and Communication Module Type NumbersName Termination Type No.RS232C Communication Adapter Mini DIN connector FC4A-PC1RS485 Communication Adapter Mini DIN connector FC4A-PC2Screw Terminal Block FC4A-PC3RS232C Communication Module Mini DIN connector FC4A-HPC1RS485 Communication Module Mini DIN connector FC4A-HPC2Screw Terminal Block FC4A-HPC3Communication Adapter and Communication Module SpecificationsType No. FC4A-PC1FC4A-HPC1FC4A-PC2FC4A-HPC2FC4A-PC3FC4A-HPC3Standards EIA RS232C EIA RS485 EIA RS485Communication Method Asynchronous Asynchronous AsynchronousPort No. 2 2 2Maximum Connectable Quantity 1 1 1Maximum Baud Rate 115,200 bps (Note 1) 115,200 bps (Note 1) 115,200 bps (Note 1)Maintenance Communication(Computer Link) Possible Possible PossibleUser Communication Possible Possible PossibleModem Communication Possible — —Data Link Communication — Possible(31 slaves max.) (Note 2)Possible(31 slaves max.) (Note 2)Modbus ASCII/RTU Communication Possible Possible PossibleModbus TCP Communication (Note 3) Possible Possible PossibleMaximum Cable Length Special cable(Note 4)Special cable(Note 4) 200m (Note 5)Isolation between Internal Circuit andCommunication Port Not isolated Not isolated Not isolatedNote 1: Maximum baud rate is 57,600 bps when using CPU modules apart from for FC5A-D12K1E/S1E.Note 2: Maximum baud rate when using data link communication is 57,600 bps.Note 3: Though Modbus TCP communication cannot be used on port 2 of FC5A-D12K1E and FC5A-D12S1E, it can be used on the built-in Ethernet port.Note 4: For special cables, see page A-12.Note 5: Recommended cable for RS485: Twisted-pair shielded cable with a minimum core wire of 0.3 mm2.Conductor resistance 85 /km maximum, shield resistance 20 /km maximum.The proper tightening torque of the terminal screws on the RS485 communication adapter and RS485 communication module is 0.22to 0.25 N·m. For tightening the screws, use screwdriver SZS 0,4 x 2,5 (Phoenix Contact).Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
