class ModBus::ReadOnlyProxy

Given a slave and a type of operation, execute a single or multiple read using hash syntax

Public Class Methods

new(slave, type) click to toggle source

Initialize a proxy for a slave and a type of operation

# File lib/rmodbus/proxy.rb, line 5
def initialize(slave, type)
  @slave, @type = slave, type
end

Public Instance Methods

[](key) click to toggle source

Read single or multiple values from a modbus slave depending on whether a Fixnum or a Range was given. Note that in the case of multiples, a pluralized version of the method is sent to the slave

# File lib/rmodbus/proxy.rb, line 11
def [](key)
  if key.instance_of?(0.class)
    @slave.send("read_#{@type}", key)
  elsif key.instance_of?(Range)
    @slave.send("read_#{@type}s", key.first, key.count)
  else
    raise ModBus::Errors::ProxyException, "Invalid argument, must be integer or range. Was #{key.class}"
  end
end