Class: McProtocolE::Frame1e::DeviceRange

Inherits:
Object
  • Object
show all
Defined in:
lib/mc_protocol_e/frame_1e/device_range.rb

Overview

This class shows a device range.

Constant Summary collapse

FIXED_VALUE = 
"\x00".b

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(device:, device_num:, device_points:) ⇒ DeviceRange

Constructor.

Parameters:

  • device (String) —

    device

  • device_num (Integer) —

    first device number in range

  • device_points (Integer) —

    number in range



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# File 'lib/mc_protocol_e/frame_1e/device_range.rb', line 16

def initialize(device:, device_num:, device_points:)
  @device = device
  @device_num = device_num
  @device_points = device_points
end

Class Method Details

.data_register(device_num:, device_points:) ⇒ Object

Returns device range of data register.

Parameters:

  • device_num (Integer) —

    first device number in range

  • device_points (Integer) —

    number in range



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# File 'lib/mc_protocol_e/frame_1e/device_range.rb', line 25

def self.data_register(device_num:, device_points:)
  new(device: Device.data_register, device_num: device_num, device_points: device_points)
end

Instance Method Details

#size ⇒ Integer

Returns range size.

Returns:

  • (Integer) —

    range size



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# File 'lib/mc_protocol_e/frame_1e/device_range.rb', line 31

def size
  device_points
end

#to_b ⇒ String

Returns binary string.

Returns:

  • (String) —

    binary string



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# File 'lib/mc_protocol_e/frame_1e/device_range.rb', line 37

def to_b
  [[device_num].pack("V"), device.code, [device_points].pack("v")[0], FIXED_VALUE].join
end