Emerson Rosemount 5402 Reference Manual page 21

Reference Manual
00809-0100-4026, Rev KC
Figure 2-3. F
F
OUNDATION
Fieldbus
Note
Intrinsically safe
installations may
allow fewer devices
per I.S. barrier due to
current limitations.
A.
B.
C.
D.
E.
The RS-485 Modbus version communicates by Modbus RTU, Modbus ASCII, and Level Master Protocols.
HART communication is used for configuration via HART terminals, or tunneling via the RS-485.
Figure 2-4. RS-485 with Modbus Communication
A.
B.
C.
D.
E.
Introduction
Fieldbus System Architecture
OUNDATION
B
A
C
475 Field Communicator
Host/DCS system (e.g. DeltaV)
Rosemount 5401
Rosemount 5402
Rosemount 5601
A
Rosemount 5400
Power
Field Communicator
Modbus, Levelmaster Emulation/RS-485
HART modem
E
D
F. Maintenance
G. Configuration with RRM (hooked up on Fieldbus segment)
H. H2 - High speed field bus
I. H1 - Low speed field bus
J. Fieldbus modem
B
D
E
F
C
F. PC 5400 Setup in Rosemount Radar Master
G. Control System
H. RS-232/RS-485 Converter
I. PC 5400 Setup in Rosemount Radar Master via Tunneling
Introduction
F
H
I
6200 ft (1900 m) max
(depending upon cable
J
characteristics)
G
H
I
October 2018
G
7