1.1 Features and Functions of Units1-31.1.2 Types of Unit Types of unit that can perform serial communicationCommunication ports that can be allocatedName Model no. COM.0 COM.1 COM.2 COM.3 COM.4CPU UnitAFP7CPS4EAFP7CPS3EAFP7CPS3● ● ●Serial Communication Unit AFP7NSC ● ● ● ●(Note 1) The COM.0 port equipped in the CPU unit is a terminal block especially for RS-232C (3-wire type).1.1.3 Types of Cassette Types of communication cassetteCommunication ports that can be allocatedModel no. Communication interface COM.0 COM.1 COM.2 COM.3 COM.4AFP7CCS1 1-channel RS-232C ● ●3-wire 2-channel RS-232C ● ● ● ●AFP7CCS2 5-wire 1-channel RS-232C ● ●AFP7CCM1 1-channel RS-422 / RS-485 ● ●AFP7CCM2 2-channel RS-422 / RS-485 ● ● ● ●1-channel RS-485 ● ●AFP7CCS1M1 3-wire 1-channel RS-232C ● ●(Note 1) For AFP7CCS2, select and use either 3-wire 2-channel RS-232C or 5-wire 1-channel RS-232C. Switchingshould be performed using a switch on the Communication Cassette.(Note 2) For AFP7CCM1 and AFP7CCM2, select and use either RS-422 or RS-485. Switching should be performedusing a switch on the Communication Cassette.(Note 3) For AFP7CCS1M1, both 1-channel RS-485 and 3-wire 1-channel RS-232C can be used.1.1.4 Applications that can be Used in Each Port Available functions for each communication portCommunication ports that can be allocatedCommunication function to be used COM.0 COM.1 COM.2 COM.3 COM.4PLC link ●Master ● ● ● ● ●MEWTOCOL7-COM (Note 1)MEWTOCOL-COM Slave ● ● ● ● ●Master ● ● ● ● ●MODBUS-RTU Slave ● ● ● ● ●General-purpose communication ● ● ● ● ●(Note 1) In MEWTOCOL7-COM, there is no master communication function.Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com