@modbus-ts/scheduler

Serial request scheduler with priority and timeout control.

Installation

pnpm add @modbus-ts/scheduler

Core Exports

• PRIORITY
• RequestScheduler

Minimal Example

import { PRIORITY, RequestScheduler } from '@modbus-ts/scheduler'

const scheduler = new RequestScheduler()

const value = await scheduler.schedule({
  id: 1,
  priority: PRIORITY.read,
  timeout: 1000,
  execute: async () => 42,
  resolve: () => {},
  reject: () => {},
})

Behavior

• One in-flight task at a time
• Higher priority runs first
• TimeoutError for expired tasks
• clearPending and close to fail queued tasks

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