modbuscli

A working Golang modbus client driver, implementing all 16 bits Holding Register functions: 0x03(Read Holding Register), 0x06(Write Single Register) and 0x10(Write Multiple Registers) and handle their output. To use it, add to your project imports "github.com/paoloo/modbuscli", go get it then instance it and set the endpoint(modbus TCP server):

 mt := new(ModBus)
 mt.EndPoint = "127.0.0.1:502"

if you want to provide a Slave Addres other than 0x01, just

 mt.Addr = 0x05

then use:

• res,_ := mt.WriteRegister(addr, value) to write a single register value into addr. Returns ([]int, error) where first position of []int is the address writen and the second is the register itself;

• res,_ := mt.ReadHoldingRegister(addr, size) to read size 16 bits register from addr. Returns ([]int, error) where []int is an array of size values readen from addr;

• res,_ := mt.WriteRegisters(addr,[]int{values}) to write an array of values into addr. Returns ([]int, error) where first position of []int is the addres written and the second is the amount of registers written.

Enjoy