Specifications

Table Of Contents
11
Reference Manual
00809-0100-4026, Rev HA
Section 2: Transmitter Overview
November 2014
Transmitter Overview
Figure 2-3. FOUNDATION fieldbus System Architecture
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
FOUNDATION
fieldbus
Note
Intrinsically safe
installations may
allow fewer devices
per I.S. barrier due to
current limitations.
Host / DCS system (e.g. DeltaV)
Maintenance
Field
Communicator
Rosemount
5401
Rosemount
5402
Rosemount
5601
Fieldbus Modem
H1 - Low Speed Field Bus
6200 ft (1900 m) max
(depending upon cable
characteristics)
Configuration with RRM
(hooked up on Fieldbus
segment)
H2 - High Speed Field Bus
Rosemount 5400
Series Transmitter
HART
Modem
Power
Modbus, Levelmaster
Emulation / RS-485
Control
System
RS-232 / RS-485
Converter
PC
5400 Setup in RRM
PC
5400 Setup in RRM
through Tunneling
Field Communicator