ce2727a emulator js

English Version | Version in Russian

TSE2727A electricity meter of electricity for connecting via RS485/RS232

The emulator supports three main teams:

• 00 Reading information about the counter
• 01 Reading date and time
• 02 Reading the current active power value
• 03 Reading current energy accumulations for an increase in tariffs

The emulator is designed to develop and test the IOT device to remove readings through the RS485.

Fast path to success

• Create a .env file with connection settings. An example in the .env_example file. (By default 9600 BOD, 1 Start Bit, 8 data bits, 1 stop bit, Eve bitched.
• npm i
• npm start

Parcels format

Requests and answers have the same format.

0x02	N	Network Address	Password	Com	ID	Data	CRC16

A detailed description of the exchange protocol here: protocol_07_04.pdf.

The CRC -16 control amount is according to the ISO/IEC 3309 standard. An example of the Imlings on C, the implementation on JavaScript.

Tiny Emulator of CE2727A Power Meter for RS485/RS232

Emulator Supports Emulation of 3 Basic Enquury Commands:

• 00 Get Meter Information
• 01 Get Date/Time
• 02 Get Active Power
• 03 Get Consumed Energy

IS Made Purely For Testing Iot Device Made For Reading Meter Values, Based on A Protocol Description Document Found in the Internet.

Quick Way to Results

• Create .env File, Set RS485/RS232 Connection Params There. Example is in .env_example File. Defaults are: 9600, Bits: 1 Start, 8 Data, 1 Stop, Even Parity.
• npm i
• npm start

General Request/Response Frame Structure

For Both Request and Response The Frame Structure Is Similar:

0x02	N	Network Address	Password	Com	ID	Data	CRC16

Detailed Data Transfer Protocol Ishere (In Russian).

NOTE: CRC16 - ISO/IEC 3309. Sample Implementation in C IS Here, Implementation in JavaScript Is Here.