ModSwift

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Summary

This library create for easy generate modbus commands on swift

Features

• Modbus Master mode
• .tcp mode

Requirements

Functions

• Read coil (one bit) register: readCoilStatus = 0x01

• Read discrete (one bit) register: readDiscreteInputs = 0x02

• Read holding (16 bit) register: readHoldingRegisters = 0x03

• Read input (16 bit) register: readInputRegisters = 0x04

• Write coil (one bit) register: forceSingleCoil = 0x05

• Write holding (16 bit bit) register: presetSingleRegister = 0x06

• Write multiply coil (one bit) registers: forceMultipleCoils = 0x0F

• Write multiply holding (16 bit bit) registers: presetMultipleRegisters= 0x10

Installation

Download repository and add ModSwift folder in your project

Usage

Setup

    var modbus = ModSwift()             // Default .tcp, slave address = 0x00
    modbus.setSlave(slaveAdress: 10)    // Set modbus slave address to 0x0A
    modbus.setMode(.rtu)                // Set package generate to ModbusRTU mode
    modbus.setTransactionId(15)         // Set modbus transaction id to 0x000E (just in .tcp mode)
    modbus.setProtocolId(3)             // Set modbus protocol id to 0x0003 (just in .tcp mode)

Package create

var modbus = ModSwift()
let data = modbus.readCoilStatus(startAddress: 0x010D, numOfCoils: 0x0019)
print(data as NSData) //<00010000 00060B01 010D0019>

let data = modbus.readHoldingRegisters(startAddress: 0x010D, numOfCoils: 0x0019)
print(data as NSData) //<00010000 00060B03 010D0019>

TODO

• Read reseave packages
• Slave mode
• Modbus RTU mode
• Modbus ASCII mode
• CocoaPods

License

MIT licensed.