Emerson Rosemount 2240S, Reference Manual, Page: 48 / 194

38
Reference Manual
00809-0100-2240, Rev DA
Rosemount
™
2240S Installation
October 2017
Rosemount
™
2240S Installation
4.4.7 Typical installations
The example below ( Figure 4-3 ) illustrates a system with daisy-chained field devices on a single tank.
Terminators are installed at both ends of the Tankbus segment as required in a system that complies with
the F
OUNDATION
fieldbus standard. In this case terminators are enabled in the Rosemount 2410 Tank Hub
and a field device at the end of the network segment.
In addition to the field instruments on the Tankbus, Figure 4-3 illustrates how an instrument such as a
pressure transmitter can be connected to the intrinsically safe 4 -20 mA analog input of the Rosemount
2410 Tank Hub.
Figure 4-3. Example of a Tankbus Connection for a Single Tank
The maximum distance between the Rosemount 2410 Tank Hub and the field devices on the tank
depends on the number of devices connected to the Tankbus and the quality of cables.
See chapter “Electrical Installation” in the Rosemount 2410 Reference Manual for more information
about cable selection, power budget, and the Tankbus.
See chapter “Typical Installations” in the Rosemount 2410 Reference Manual for more examples of how
to install systems that include the Rosemount 2410 Tank Hub.
Rosemount 5900S
Radar Level Gauge
Rosemount 2240S Multi-input
Temperature Transmitter
Built-in
terminator
enabled on the
last device
Rosemount 2230
Display
Rosemount 2410 Tank Hub with
intrinsically safe power supply,
integrated power conditioner, and
built-in terminator
Tankbus length up to 1000 meter depending on
number of devices and cable type
Tankbus
IS Analog Input
(Secondary bus)
Rosemount 3051S
Pressure Transmitter
Maximum number of HART Slave Devices
Passive current loop: 5
Active current loop: 3