System Integration; Modbus Rtu Technology - Siemens SITRANS FC410 Operating Instructions Manual

Flowmeter overview
①
②
③
④
⑤
⑥
Image 3-3
3.2

System integration

The FC410 flowmeter functions as a Modbus RTU slave with standard Modbus commands
implemented. Setup parameters, process values, diagnostics, and status information are
mapped as Modbus registers.
The device can be connected point-to-point or in a multidrop network in non-hazardous or
hazardous locations. It can be connected to different hosts for example a PLC system or a
PC used as service tool or configuration tool.
Note
Multidrop installations in hazardous locations
Multidrop installations in hazardous locations require flameproof conduit seals for each
device, see illustrations in System configurations (Page 43)
3.3

Modbus RTU technology

Modbus RTU is an open, serial protocol based on master/slave architecture. The protocol
interconnects field equipment such as sensors, actuators, and controllers and is widely used
in both process and manufacturing automation. The fieldbus environment is the base level
group of digital networks in the hierarchy of plant networks.
FC410 with Modbus
Operating Instructions, 02/2016, A5E33120874-AC
Mini Flow Link (MFL)
Lid-lock
Cable feed-through (M12 socket or gland)
Plug and threaded port for example for pressure guard
Sensor enclosure
Process connections
Overview of FC410 flowmeter
Description
3.2 System integration
23