Introduction; Electrical Installation; Selection Of Serial; Communication Adaptors For Personal Computers - ABB COMMANDER 310 Operating Manual
Universal process controller modbus (rtu) communications option
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Also See for COMMANDER 310:
- Installation manual (24 pages) ,
- Programming manual (56 pages)
Table of Contents
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1 INTRODUCTION
Information.
•
Serial data communication option
designed
for
systems.
•
RS422/485 Communication standard.
•
MODBUS RTU protocol – for master
(host
computer)
(COMMANDER 310) system.
•
Isolated
(500V)
instrument.
•
5-wire communication supported.
•
Baud rate – from 1200 to 9600.
•
Parity-checking – odd, even or none.
2
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use
with
SCADA
to
slave
from
rest
of
2 ELECTRICAL INSTALLATION
2.1 Selection of Serial
Communication Adaptors for
Personal Computers
Information.
•
An RS422/485 communication board
is required in the host PC.
•
Observe the limitations outlined in the
Installation Guide
data transmission line length for both
RS422 and RS485 systems is 1200m.
An RS422/485 communications adaptor is
required for serial links. It is strongly
recommended that the card used has
galvanic isolation to protect the computer
from
lightning
damage
immunity from noise pick-up.
– the maximum serial
and
increase
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