User Manual

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Enable Modbus/TCP Enables M2M Modbus/TCP API functions in the system kernel.
Port Specific port for Modbus/TCP only, range 1 – 65535. The device alerts you
if you specify a port number that is already occupied. However, to be sure,
we recommend using port numbers above 1024.
Enable WRITE (Enable
output control)
Enables also output control function.
Enable IP filter To improve security, the IP filter can be used to specify a range of IP
addresses from which Modbus/TCP commands are accepted. Commands
from addresses outside of this range will be ignored.
Last connection from Read-only value indicating the IP address from which the last Modbus/TCP
command was received. The “Refresh” button updates this value.
For more information about the M2M Modbus/TCP API, visit the Support > Download section of our
website and see the following document:
Modbus / TCP - description of NETIO M2M API interface - PDF
For more information and a practical demonstration of using the XML protocol with NETIO 4x smart
sockets, see the following Application Note:
AN27 Modbus/TCP with NETIO 4x – Control and measure LAN power sockets