User's Manual

85
Document Number: 0100SM1401 Issue: 10-14
MODBUS Gateway
MODBUS TCP to MODBUS RTU - Point to point
Connect your PC’s Ethernet port to ETH1 or ETH2 of the radio being configured and using a web browser, browse to the
radio’s configuration page by entering the IP address the unit into the browser’s URL bar. Once the configuration has been
activated, repeat the process for the remaining radio/s.
To access the parameters below, browse to the “Setup” tab and select the “COM1” option under “Configuration”.
Introduction
Point-to-Point (PTP) with MODBUS TCP to MODBUS RTU can be performed by using the MODBUS gateway feature
embedded within the Q data radios.
Remote - 192.168.2.17
COM1:
Mode: MODBUS/TCP Gateway
Character Layer and Interface: match the
configuration of the external serial device you
are connecting to the Q data radio’s Serial Port.
The default is 9600,8,N,1 - RS232.
Packet Layer: MODBUS
Protocol: TCP
(e) Protocol Mode: TCP Client
(f) Primary IP Address: 192.168.2.16
(g) Primary IP Port: 30010
(h) MODBUS RTU Timeout: 30 seconds
Entry Point - 192.168.2.16
(In this topology, the entry point radio is
transparent to the MODBUS TCP data).
No COM port configuration is required.
Part G – Quick Start Guide
Host Application - 192.168.2.10
Port number: 30010
Protocol: MODBUS/TCP
SCADApack RTU Destination Address: 192.168.2.17
SCADApack RTU Destination Port number: 30010