farmitry_hvac/app/services/modbus/commands/word_holding_int16.rb

# Modbus::Service.new(plc_id: 1, type: "word_holding_int16", start_address: 16, end_address: 31).execute
module Modbus
  module Commands
    def word_holding_int16(slave)
      read_int(slave, 16, :holding_registers)
    end
  end
end