Emerson Rosemount 2230 Reference Manual page 32

Installation
March 2021
Segment design
When designing a FISCO fieldbus segment a few requirements need to be considered.
Cabling has to comply with FISCO requirements.
You will also have to ensure that the total operating current of the connected field devices
is within the output capability of the Rosemount 2410 Tank Hub. The 2410 is able to
deliver 250
the total current consumption is less than 250 mA. See section "Power Budget" in the
Rosemount 2410
information.
Another requirement is to ensure that all field devices have at least 9 V input voltage at
their terminals. Therefore you will have to take into account the voltage drop in the
fieldbus cables.
Distances are normally quite short between the Rosemount 2410 Tank Hub and field
devices on the tank. In many cases you can use existing cables as long as the FISCO
requirements are fulfilled.
See chapter "The Tankbus" in the Rosemount 2410 Tank Hub
information on segment design of a Rosemount Tank Gauging system.
Related information
Cable selection
3.4.7 Typical installation
The example in
tank. Terminators are installed at both ends of the fieldbus segment as required in a
F
OUNDATION
Tank Hub and a field device at the end of the network segment.
In addition to the field instruments on the Tankbus,
instrument such as a pressure transmitter can be connected to the intrinsically safe 4 -20
mA analog input of the 2410 Tank Hub.
(8) In Smart Wireless Systems the 2410 can deliver 200 mA on the Tankbus
32
(8)
mA. Consequently, the number of field devices has to be considered so that
Reference Manual
Figure 3-3 illustrates a system with daisy-chained field devices on a single
Fieldbus system. In this case terminators are enabled in the Rosemount 2410
(Document no. 00809-0100-2410) for more
Figure 3-3
Reference Manual
00809-0100-2230
Reference Manual for more
illustrates how an
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