AB flowmeter | May I ask how AB PLC reads the cumulative flow value of an 8-byte (64 bit) flowmeter?

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What does the code name for the abcycd-500 electromagnetic flowmeter mean? Electromagnetic flowmeter is a new type of flow measurement instrument that uses the principle of electromagnetic induction to measure the flow rate of conductive fluids. It mainly consists of a magnetic circuit system, a measuring conduit, electrodes, a housing, a lining, and a converter. The function of a magnetic circuit system is to generate a uniform DC or AC magnetic field, usually using an alternating magnetic field and excited by a 50HZ power supply. The measuring conduit allows the tested conductive liquid to pass through. In order to prevent diversion or short circuit, the measuring conduit must be made of non-magnetic, low conductivity, low thermal conductivity, and materials with certain mechanical strength, such as stainless steel, fiberglass, high-strength plastic, aluminum, etc. The electrode is used to generate an induced potential signal proportional to the measured fluid, and its installation position should be in the vertical direction of the pipeline to avoid sediment accumulation. The casing is the outer shell that distributes the excitation coil, and it is used to isolate the interference of external magnetic fields. The lining directly contacts the measured liquid, increasing the corrosion resistance and wear resistance of the measuring catheter. The sock like lining material is mostly polytetrafluoroethylene plastic or ceramic. The converter is responsible for amplifying and converting the induced potential signal into a unified standard signal, with high accuracy and flow range, up to 150:1. Electromagnetic flow meters have many advantages, such as measurement not being affected by changes in fluid density, viscosity, temperature, pressure, and conductivity, no additional pressure loss, no pressure loss, low requirements for straight pipe sections, and unique adaptability for slurry measurement. The converter adopts a 16 bit high-performance microprocessor, 2x16 LCD display, convenient parameter setting, reliable programming, and a bidirectional measurement system that can measure forward and reverse flow rates. The sensing voltage signal of the sensor is linearly related to the average flow velocity, resulting in high measurement accuracy. There are no flow barriers in the measuring pipeline, so there is no additional pressure loss, and the sensor has an extremely long lifespan. Overall, electromagnetic flowmeter is a new type of flow measurement instrument with reliable performance, high accuracy, low power consumption, and stable zero point, suitable for flow measurement of various conductive fluids. It has a simple structure, accurate measurement, and easy maintenance, and is widely used in industrial production, scientific research experiments, and other fields.

2. Wiring diagram of split type sewage electromagnetic flowmeter

The wiring of split type sewage electromagnetic flowmeter is divided into two parts: internal wiring and external wiring. The following is a detailed explanation: the internal wiring is the connection between the sensor and the conversion amplifier, with a total of 5 wires, as follows: excitation coil wiring: 2 wires, marked as XY, used to provide current to the excitation coil and generate a stable magnetic field.

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