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@modbus-ts/codec

v0.0.5

Published

4 days ago

The codec package for modbus-ts.

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0Medium
0Low

modbus modbus-ts codec registers float32 float64 byte-swap word-swap endianness industrial-data typescript esm

@modbus-ts/codec

Industrial register codec helpers with byte and word swap support.

Installation

pnpm add @modbus-ts/codec

Core Exports

SwapOptions
decodeUint16 / decodeInt16
decodeUint32 / decodeInt32
decodeFloat32 / decodeFloat64
encodeFloat32 / encodeFloat64
encodeAsciiString / decodeAsciiString

Minimal Example

import {
  decodeAsciiString,
  decodeFloat32,
  encodeAsciiString,
  encodeFloat32,
} from '@modbus-ts/codec'

const regs = encodeFloat32(12.5, { wordSwap: true })
const value = decodeFloat32(regs, { wordSwap: true })

const textRegs = encodeAsciiString('HELLO', { padByte: 0x20 })
const text = decodeAsciiString(textRegs)

Notes

Use byteSwap and wordSwap to match PLC memory layout
Helpers operate directly on Modbus register arrays

Packages

high-level Modbus client
shared contracts, types, and errors
FC1/FC2/FC3/FC4/FC5/FC6/FC15/FC16 frame encode/decode for TCP/RTU/ASCII
serial request queue with priority
polling engine and range merge
Node TCP transport with reconnect
Node UDP transport
browser WebSocket transport with reconnect
typed Electron main/renderer bridge
Electron IPC transport adapter
WebSocket to TCP binary relay gateway
register-value codec helpers
shared async and comparison utilities