iSMA CONTROLLI MVC503R-MB, Product Manual

www.ismacontrolli.com

DMP116it | 1

st

 Issue rev. a | 03/2022

pag.  

MVC503R-MB Configuration Tool 

–

 Product Manual 

4 

2.2

Configurator Installation Procedure 

The software is provided with a self-installing file: "

MVC503R-MB Manager

". 

After the installation, the software is ready for use. 

2.3

LIBO-USB Serial Converter Installation 

LIBO-USB is a USB to RS422 / 485 converter. It supports communication with 2/4 wire 
RS485. 
This device has a removable terminal block for connection to the device and 2 LEDs 
that indicate the transmission and reception of data in progress. 
To operate in 485 mode it is necessary to set the following DIP-SWITCHES to ON: 

1. RS-485 transmission 
2. Echo OFF 
3. 2-Wire communication 
 

For a Modbus connection with MVC503R-MB, the correct terminals to be used are: 

1. TDA (-) 
2. TDB (+) 
3. GND 
 

The device needs the installation of the drivers either by using the CD-ROM inserted in 
the box of LIBO-USB or by downloading the drivers from the network

(

http://www.bb-

elec.com/USOPTL4

). 

2.4

Setup 

The software can be started through the icon on the Desktop or through the 

Start 

→

All path Programs 

→

 MVC503RMB Configurator 

→

 Configurator menu

.