Principle Of Operation - Siemens SITRANS F Operating Instructions Manual

Applications
The main application for flowmeters type SITRANS FUS380 / SONOKIT and the type-
approved version FUE380 is measurement of water flow in district heating plants, local
networks, boiler stations, substations, chiller plants, irrigations plants, and other general water
applications.
Integration
The flowmeter pulse output is often used as input for an energy meter or as input for digital
systems for remote reading. The transmitter has two pulse outputs, with functions that can be
individually selected, and integrated IrDA (optical eye) communication interface (Modbus RTU).
The settings of the transmitter, for example flow and pulse output rate, are defined when
ordering the complete flowmeter. If the flowmeter forms part of an energy meter system for
custody transfer, no further approvals are needed, except eventually local approvals on the
flowmeter.
Transmitter communication solutions
The parametrization of the device is done with an device specific Electronic Device Description
(EDD) which is part of the product delivery. The EDD can be loaded by the the SIMATIC PDM
software. The communication protocol between SIMATIC PDM and the device is MODBUS
RTU. The communication goes through the IrDA interface of the device. To connect the IrDA
interface with a PC an IrDA adapter is needed. The following table shows the compatibility
between the firmware (FW) and the EDD.
FW version
1.02 to 1.05
2.03
2.03
2.04
3.5

Principle of operation

Physical principle
Figure 3-1
SITRANS FUS380/FUE380
Operating Instructions, 05/2018, A5E00730100-AE
EDD version
1.01.04 (with SIMATIC PDM 6 versions)
1.02.07 (with SIMATIC PDM 6 versions)
1.02.08-01 (min. SIMATIC PDM 8 versions)
1.02.09 (min. SIMATIC PDM 8 versions)
Velocity distribution along sound path
Description
3.5 Principle of operation
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