class ModBus::ReadWriteProxy

Public Instance Methods

[]=(key, val) click to toggle source

Write single or multiple values to 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. Also when writing multiple values, the number of elements must match the number of registers in the range or an exception is raised

# File lib/rmodbus/proxy.rb, line 26
def []=(key, val)
  if key.instance_of?(0.class)
    @slave.send("write_#{@type}", key, val)
  elsif key.instance_of?(Range)
    if key.count != val.size
      raise ModBus::Errors::ProxyException, "The size of the range must match the size of the values (#{key.count} != #{val.size})"
    end

    @slave.send("write_#{@type}s", key.first, val)
  else
    raise ModBus::Errors::ProxyException, "Invalid argument, must be integer or range. Was #{key.class}"
  end
end