Chapter 3 General Specifications
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3.7 Communication settings
EHV+ series CPUs have 3 types of communication ports as below.
Ethernet port
Default value
IP address: 192.168.0.1
Subnet mask: 255.255.255.0
Function
- Gateway (communication with EHV-CoDeSys) (default port number: 1740)
- Modbus-TCP client/server
- Global network variables
Configuration
Ethernet port parameters are configured in “Device” window. To change IP address, choose “Yes” at “Change
IP information” besides IP address settings. New IP address will be updated when downloading in the next
time.
USB port
USB port has only gateway function (communication with EHV-CoDeSys). No configuration is necessary.
Serial port
Function
- Gateway (communication with EHV-CoDeSys).
- IEC programming (Modbus-RTU master or general purpose communication controlled by user program)
Configuration
Serial port parameters are configured in “Device” window. If the serial port is used for IEC programming
(Modbus-RTU or general purpose communication), choose “IEC Programming” at “Serial port mode”.
Note
The parameter “Ethernet port Link speed / Duplex mode” requires power cycling to update parameter data.
All the other parameters are updated when program is downloaded.
Ethernet port configuration
Serial port configuration
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