DTMR3-TX
Doc. N°
MO-0377-ING
Copyright 2010
Data
01.04.2009
Rev.
0
Pag.
24
of
87
14.3
– Menu:
Communic. (Communication)
Options
BRLoc
38400
[9600 / 19200 / 38400 / 57600]
BRRem
19200
[9600 / 19200 / 38400]
PRRem
Modbus
[Modbus / IEC103]
Node Address
Indir.
1
[1
255]
14.3.1
– Description of variables
BRLoc
: RS232 local (Front Panel) serial communication speed
BRRem
: RS485 remote (Rear terminal block) serial communication speed
PRRem
: Protocol for remote (Rear terminal block) serial communication RS485
Indir.
: Identification number for the connection on serial communication bus
14.3.2
–
Front Panel serial communication port (RS232)
A D-Sub, -pin female socket is avai
lable on Relay’s front face for connection to the local RS232
serial communication line. Through this port - and by the interface program available from
Microelettrica Scientifica (MSCom 2 for Windows 98/ME/2000/XP)
– it is possible to connect a
Personal Computer to download all available information, operate any control and program the
relay; the protocol used is “ Modbus RTU”.
14.3.3
– Cable for direct connection of Relay to Personal Computer
14.3.4
– 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
informations and records.
The physical connection can be via a normal pair of wires (RS485) or, on request, via fiber optic.