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Profinet Flow Meter: Industrial Ethernet Connected Automation Sensors
Quick Answer
Silver Instruments supplies Profinet enabled flow meters for direct connection to Siemens PLCs, DCS, and industrial Ethernet networks. We offer electromagnetic, Coriolis, and vortex meters with Profinet interfaces, ready for TIA Portal integration. To get a price, send us your pipe size (DN), fluid type, temperature, pressure, and whether you need ATEX Zone 1 certification.
What a Profinet Flow Meter Does in a Real Plant
Profinet is a real time industrial Ethernet protocol. It replaces 4-20 mA wiring and gives you flow rate, totalizer, density, and temperature all over one RJ45 cable. This matters a lot when a control room needs instant data without analog signal drift. A typical setup is a magnetic flow meter on a chemical dosing skid that transmits 0.5 % accuracy data directly to a Siemens S7-1500 CPU. No intermediate gateway box, no extra power supply for the communicator. The meter appears as a PROFINET IO device with a GSD file you import into TIA Portal. Most engineers skip the manual and just pull out the GSD file from our support page.
Which Flow Technologies Work with Profinet
Not every meter needs Profinet, but some applications demand it. Electromagnetic flow meters are the most common. We build them from DN15 up to DN2000, with PTFE or hard rubber liner, 316L or Hastelloy electrodes, and an IP67 remote converter. For a water desalination plant in Saudi Arabia, we delivered eight Profinet magmeters with 24 V DC loop power and integrated RS-485 backup. Coriolis mass flow meters with Profinet are the choice when you measure kg/h of polyol or edible oil with 0.1 % mass accuracy. Our sensor handles viscosity up to 10,000 cP and process temperatures to 150 °C. In one case, a food factory in Vietnam replaced a batch controller with a single Profinet Coriolis meter, cutting cleaning time by 15 minutes every shift. Vortex flow meters with Profinet handle saturated steam, compressed air, and natural gas. We supply them with an integrated PT100 temperature sensor so the meter calculates mass flow internally and sends compensated values to the PLC. No separate flow computer needed.
Parameters You Will Actually Set Up
The Profinet interface on our flow meters gives you multiple process values in one telegram. Standard mapped data include volume flow (m³/h), mass flow (for Coriolis meters in kg/h), conductivity (µS/cm for magmeters), and empty pipe detection. You can also read totalizer values and internal diagnostic bits. Because the meter delivers digital data, there is no 4-20 mA loop error. A thermal mass flow meter we shipped to a biogas plant in Thailand was configured to send Nm³/h and gas temperature via Profinet with a 50 Hz update rate. The plant operator saw the real time consumption curve on a Siemens WinCC SCADA screen and detected a minor biogas leak two days after commissioning. That kind of fast response does not happen with standard pulse outputs.
ATEX, Hazardous Areas, and Profinet
Many flow meter locations are Zone 1 or Division 1. A Profinet enabled flow meter for hazardous areas is not just a standard device. Silver Instruments supplies meters with ATEX / IECEx intrinsically safe or flameproof approvals. The Profinet electronics can be mounted remotely on a safe area wall, connecting to the sensor via a dedicated cable up to 100 meters. For an offshore platform in Nigeria, we sup
Here Is the Thing About TIA Portal and GSD Files
We often get calls from engineers who connect the Profinet cable, see the device online, but do not get process values. The fix is simple but easy to miss. In TIA Portal, after installing our GSD file (we provide it for all Profinet meters), you must set the IO cycle update time to match the meter response. Our electromagnetics expect 4 ms minimum, Coriolis meters need 8 ms because of the mass calculation. Also switch from “automatic” to “manual” IP assignment and use DCP naming. The device name has to match exactly, no spaces at the end. A brewery in Mexico spent half a day on this until our WhatsApp tech support pointed out a trailing underscore in the name. After that correction, they had ethanol flow measurements on the same dashboard as batch control.
FAQ About Profinet Flow Meters
Can I get a flow meter with Profinet and also 4-20 mA HART backup?
Yes. Most Silver Instruments transmitters offer dual output. You can use Profinet as the primary communication and keep a 4-20 mA with HART channel active at the same time. This is useful for local indicators or third party recorders that do not speak Profinet.
Which flow meter type is best for low conductivity water with Profinet?
Electromagnetic flow meters need a minimum conductivity, typically 5 µS/cm. For demineralized water below that, a Coriolis mass flow meter with Profinet is the right pick. It measures mass flow directly, and conductivity does not matter.
How do I order a Profinet flow meter sample or test unit?
We recommend you send us the exact fluid name, temperature, pressure, pipe DN, and your Siemens PLC series. Our engineering team will propose a meter and ship a factory configured unit within 4 to 6 weeks. Email [email protected] or call +86-135-1213-1526. You can also reach us on WhatsApp at 86-135-12131526.
Do you offer Profinet flow meters with sanitary connections for food or pharma?
Yes. Our Profinet Coriolis meters come with Tri-Clamp or DIN 11864 connections, 3.1 material certificates, and Ra ≤ 0.8 µm surface finish. We have supplied to dairy plants in New Zealand and a soft drink bottling line in Guatemala, both using CIP clean in place and the Profinet data for traceability.
What is the maximum cable length for the Profinet remote converter?
The standard sensor-to-converter cable with our remote version is 10 meters, but we can manufacture up to 100 meters on request. The Profinet Ethernet cable from the converter to the PLC switch follows standard industrial Ethernet limits, typically 100 meters copper to the next node.
Send Your Specs and Get a Specific Quote Today
Tell us your pressure in bar, temperature in °C, pipe size (DN), flow range, fluid name, and whether you need ATEX Zone 1 or 2 certification. Our team will reply within 8 hours with a matching Profinet flow meter model and price.
Email: [email protected] | Tel: +86-135-1213-1526
WhatsApp: 86-135-12131526 | WeChat: +86 13512131526
Silver Instruments – Profinet flow meters for water, oil, gas, chemicals, and food.
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