MC2-30MW
Doc. N°
MO-0495-ING
Copyright 2018
Date
17.03.2022
Rev.
2
Pag. 32
of
66
17.3 – Menu:
Communic.
(Communication)
Options
→
BRRem
19200
[9600 / 19200 / 38400]
→
PRRem
MODBUS
[MODBUS / IEC103]
Node Address
→
Addr.
1
[1
÷
250]
17.3.1 – Description of variables
BRRem
: USB (Front Panel) serial communication speed
PRRem
: Remote Protocol
Addr.
: Identification number for the connection on serial communication bus
17.3.2 – Front Panel USB serial communication port (RS232)
A Mini-USB socket is available on Relay’s front face for connection.
Through this port - and by the interface program for Windows XP/7 – it is possible connect a Personal
Computer to download all available information, operate any control and program the relay; the protocol
used is “Modbus RTU”.
To avoid electronic damage apply ESD caution.
17.3.3 – Cable for connection from Relay to Personal Computer
The connection cable is a standard
USB-A/mini USB-B
17.3.4 – Main serial communication port (RS485)
From the Relay’s back terminal board, a RS485 ports is available for communication with SCADA system
with Protocol Modbus RTU or IEC60870-5-103 (selectable).
The communication interface allows to program all settings, operate all commands and download all
information and records.
The physical connection can be via a normal pair of wires (RS485).
