Class: ModBus::RTUServer

Inherits:
Object
  • Object
show all
Includes:
Debug, RTU, SP, Server
Defined in:
lib/rmodbus/rtu_server.rb

Overview

RTU server implementation

Examples:

srv = RTUServer.new('/dev/ttyS1', 9600, 1)
srv.coils = [1,0,1,1]
srv.discrete_inputs = [1,1,0,0]
srv.holding_registers = [1,2,3,4]
srv.input_registers = [1,2,3,4]
srv.debug = true
srv.start

Constant Summary

Constants included from Server

Server::Funcs

Instance Attribute Summary

Attributes included from SP

#baud, #data_bits, #parity, #port, #read_timeout, #stop_bits

Attributes included from Server

#coils, #discrete_inputs, #holding_registers, #input_registers, #uid

Attributes included from Debug

#debug, #raise_exception_on_mismatch, #read_retries, #read_retry_timeout

Instance Method Summary collapse

Methods included from SP

#open_serial_port

Constructor Details

#initialize(port, baud = 9600, uid = 1, opts = {}) ⇒ RTUServer

Init RTU server

Parameters:

  • uid (Integer) (defaults to: 1) —

    slave device

See Also:



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# File 'lib/rmodbus/rtu_server.rb', line 20

def initialize(port, baud=9600, uid=1, opts = {})
  Thread.abort_on_exception = true
  @sp = open_serial_port(port, baud, opts)
  @uid = uid
end

Instance Method Details

#join ⇒ Object

Join server



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# File 'lib/rmodbus/rtu_server.rb', line 42

def join
  @serv.join
end

#start ⇒ Object

Start server



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# File 'lib/rmodbus/rtu_server.rb', line 27

def start
  @serv = Thread.new do
    serv_rtu_requests(@sp) do |msg|
      exec_req(msg[1..-3], @coils, @discrete_inputs, @holding_registers, @input_registers)
    end
  end
end

#stop ⇒ Object

Stop server



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# File 'lib/rmodbus/rtu_server.rb', line 36

def stop
  Thread.kill(@serv)
  @sp.close
end