14 Serial Communications
14-4
CP2E CPU Unit Software User’s Manual(W614)
Serial Ports and Compatible Protocols
Serial Port
Protocol
Serial Port 1
Built-in RS-232C
Serial Port 2
Built-in RS-485
Serial Port 1 (EX)
Host Link Supported Supported Not supported
1:N NT Link Supported Supported Not supported
Serial PLC Links (Master) Supported Supported Supported
Serial PLC Links (Slave) Supported Supported Supported
RS-232C (No-protocol mode) Supported Supported Supported
Modbus-RTU Easy Master Supported Supported Supported
Modbus-RTU Slave Supported Supported Supported
Overview of Connection with Serial Ports
NB-series PT, NS-series PT
or NV-series PT
1:N NT Link
Host Link
Other company’s PLC
Modbus-RTU Slave*
2
General component
No-protocol
communications
Modbus-RTU Easy
Master communications
Inverter
Host computer
(A Programming Device cannot be connected.)
Host Link
Connected devices
Connected devices
NB-series PT, NS-series PT
or NV-series PT
1:N NT Link
Host Link
General component
Inverter
No-protocol
communications
Modbus-RTU Easy
Master communications
Host computer (A Programming
Device cannot be connected.)
Host Link
*
1
Serial PLC Links can only be used on one port.
*
2
Modbus-RTU Slave can only be used on one port.
Option slot
N14/20 CPU Unit
CP-series PLC
or CJ2M PLC
CP-series PLC or CJ2M PLC
Serial PLC Links*
1
Serial PLC Links*
1
Built-in
RS-232C port
E30/40/60, S30/40/60
CPU Unit
Built-in RS-485 port
(S30/40/60 only)
Other company’s PLC
Modbus-RTU Slave*
2
Built-in
RS-232C Port
E14/20 CPU Unit
Option slot 2Option slot 1
N30/40/60 CPU Unit