N-Tron ESERV-M12T, User Manual

Page: 21 / 71

Setup and Connections ESERV-M12T Modbus Gateway
16 ESERV-M12T (Rev. 1210)
To exit Console Mode , press and hold the Reset switch for two seconds, or turn off the power from the ESERV-
M12T, wait a few seconds, and turn the power on again.
The LEDs go back to their normal states when the device resumes normal operation.
ESERV-M12T MODBUS GATEWAY OPERATIONAL CONNECTIONS
ESERV-M12T Modbus Gateways can operate in Direct IP Mode.
USING ESERV-M12T MODBUS GATEWAYS IN DIRECT IP MODE
A Direct IP connection allows applications using TCP/IP socket programs to communicate with the COM ports on
the Modbus gateway. In this type of application the Modbus gateway is configured as a TCP server. The socket
program running on the PC establishes a communication connection with the Modbus gateway. The data is sent
directly to and from the serial port on the server.
To set up a Direct IP Mode connection:
1. Connect the Modbus gateway to the network and a Modbus network as described in
previous sections.
2. Configure the Modbus gateway with the appropriate network settings (using
Modbus Gateway Manager or the web interface).
3. Configure your software application with the appropriate IP address and port
number to communicate with the Modbus network(s).
Figure 15. Direct IP Connection