Current position > News detail
『Flow meter address』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
1. Promag 400 flowmeter 485 communication register address parameter
The Modbus RTU communication register address of Promag 400 (Endress+Hauser electromagnetic flowmeter) is distinguished by functional groups, and the core parameters are based on the E+H 2023 official communication manual
I. Basic Communication Specification 1 Default communication parameters of the device: baud rate 9600bps, no parity check, 8-bit data bit, 1-bit stop bit, default slave address is 12 Address format description: Register addresses are divided into offset addresses (counting from 0) and Modbus standard numbers (counting from 1), with a difference of 1. They need to match the configuration rules of the master station software. 2. Read only input trace registers (corresponding to the 04 function code, can only read process data and device status) Instantaneous flow register: offset address 00000 (corresponding to Modbus standard number 40001), 32-bit IEEE754 floating-point number, measurement unit set locally with the flow meter (such as m ³/h, L/min) 2. Total cumulative flow register: offset address 00002, 32-bit IEEE754 floating-point number, cumulative total flow measurement value 3 Running status register: offset address 00004, 16 bit unsigned integer, containing device running status, fault alarm code 4 Sensor diagnostic register: offset address 00005, 16 bit unsigned integer, including self check results such as electrode contamination, empty tube, and abnormal dielectric insulation
3. Read/write hold register (corresponding to 03/16 function code, can read or modify device configuration parameters) 1 Basic configuration group (offset address starting from 00100) 1 Upper limit of flow range: offset address 0010
IV. Version adaptation instructions 1 Promag 400 with different firmware versions may have slight register offset differences. It is recommended to refer to the official communication manual provided with the device When reading and writing 32-bit floating-point numbers, it is necessary to strictly follow the default big end byte transmission order of the device to avoid data parsing errors Before modifying device parameters, it is recommended to pause the measurement process and lock the devices operating status to prevent affecting production measurement accuracy.
2. Which flowmeter is more stable?
3. Correct installation position of intelligent electromagnetic flowmeter
The correct installation position of intelligent electromagnetic flowmeter needs to comprehensively consider measurement accuracy, equipment protection, and fluid characteristics. Specific requirements are as follows
1. Recommended installation position for horizontal pipeline: lower or vertically upward position of horizontal pipeline.
.