Titan MTX-Router-Titan, User Manual

Page: 44 / 200

Matrix Electrónica – MTX ‐ Router ‐ Titan User Manual ‐ Rel3.00.3.09
Page 44
http://www.mtxm2m.com
Subject to changes without prior notice
4.6.4- External Devices >> Modbus RTU / TCP
The MTX-Router-Titan-3G and MTX-Router-Titan-3G-mini devices are prepared to read, store and
send registers from Modbus RTU devices. You can program a periodic reading of up to 10 Modbus
devices, choosing the registers to be read, and the later sending of the readings to a webserver via a
JSON object.

Enabled : Activate this option if you have one or more Modbus RTU devices connected to a
serial port and you wish the Modbus registers to be read autonomously.

Serial Port : Select the MTX-Router-Titan-3G or MTX-Router-Titan-3G-mini device’s serial
port where the Modbus RTU device is connected.

Logger : If you wish to use the internal logger to store the read Modbus registers (to later
send this to a web platform), you need to select this option.

Device name : identifying name of the Modbus RTU device.

Address : Modbus RTU address of the device to be read.

Command : Modbus read command.

Start : Register where reading shall start.

Num Words: Number of registers to be read.

Reg type: Type of registers to be read.

Period: Period of readings; i.e. how often (in minutes) the registers should be read.
You can create up to 10 devices. If you need to read a series of Modbus registers that are not
consecutive in the same Modbus device, you will need to create several devices with the same
Modbus address and choose a different range to be read in each one.
For example, if you have a device with Modbus address @1 and you wish to read the registers 1
to 10 and 100 to 110, you will need to create two devices with “Address” @1, one of these with the
“Start” parameter set to 1, and the device with the “Start” parameter set to 100. In both devices the
“Num Words” parameter should be set to 10.