1 Product Overview

DAQ-GP-DCHS485 Transmitter Acquisition Device is an industrial-grade, compact, and portable intelligent DC power transmitter with fast, stable, and high-precision performance launched by Shanghai Data Acquisition IoT Technology Co., Ltd.

Application fields: It is widely used in fields such as electric power, communications, transportation, environmental protection, petrochemicals, and steel to monitor the current or voltage consumption of AC and DC equipment. It features a standard RS-485 digital interface output, enabling interconnection with upper computers such as computers, PLCs, industrial gateways, and touch screens.

2 Order Specifications and Model Selection

Special customization of three parameters is supported: input range, output type, and working power supply.

3 Service Philosophy

Our company solemnly promises:

What you purchase is not only the product, but also meticulous and thoughtful technical support services!!!( =^_^= )

This product can be installed by ordinary workers on-site with only power connection! No debugging is required!

We provide free remote guidance and remote configuration and debugging services, and send data to the cloud platform designated by users.

As an expert in industrial data acquisition, Data Acquisition IoT provides free IoT solution consulting services!

4 Product Characteristic Parameters

4.1 Communication Characteristics

Serial communication adopts RS485, with a default address of 1, baud rate of 9600, 8 data bits, 1 stop bit, and no parity.

4.2 Terminal Definition

Facing the 4p terminal: GND, 485B, 485A, +12V (+E)

Terminal diagram:

4.3 Features and Functions

Adopting new electromagnetic isolation technology, photoelectric isolation technology, and low power consumption

Industrial-grade imported chips with professional algorithms, high precision

Equipped with automatic thermal switch-off and ESD protection functions

4.4 Electrical Characteristics

Operating power supply: DC12 - DC24V, DC

Power consumption: less than 5W

4.5 Operating Environment

Operating temperature: -20° ~ 80°C

4.6 Installation Methods

Standard guide rail installation, plane screw fixation, detachable split structure, PCB welding installation, etc.

5 Core Advantages of the Product

u Simple installation, rapid deployment, facilitating the rapid implementation of IoT projects

u Supporting external connection of multiple sensors

u Non-intrusive collection, without affecting the normal operation of equipment

6 Register Description

Instructions: 1. When the transmitter input is dual-channel, take the electrical quantity of the first channel and the electrical quantity of the second channel. 2. For a dual-channel input where the transmitter input is a combination of current and voltage, the first channel is voltage data and the second channel is current data. 3. For transmitters with multiple inputs such as two or three channels, if it is necessary to read the electrical quantity of a certain channel separately, just read the register corresponding to that channel separately, and set the number of registers to 1. (For example: If you only need to read the electrical quantity of the third channel and do not want to read the first and second channels, send the downlink command as: 01H 03H 00H 12H 00H 01H)

6.1 Example of Data Reading Command for Single-Input Transmitter

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6.2 Dual-input Transmitter

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6.3 Three-way Input Transmitter

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6.4 修改地址

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6.5 Modify the baud rate

6.6 Baud Rate Encoding

7  应用案例