/// <summary>
        /// Build a read command bytes
        /// </summary>
        /// <param name="address">the address of the tag name</param>
        /// <param name="length">Array information, if not arrays, is 1 </param>
        /// <returns>Message information that contains the result object </returns>
        public OperateResult <byte[]> BuildReadCommand(string[] address, int[] length)
        {
            if (address == null || length == null)
            {
                return(new OperateResult <byte[]>("address or length is null"));
            }
            if (address.Length != length.Length)
            {
                return(new OperateResult <byte[]>("address and length is not same array"));
            }

            List <byte[]> cips = new List <byte[]>( );

            for (int i = 0; i < address.Length; i++)
            {
                cips.Add(AllenBradleyHelper.PackRequsetRead(address[i], length[i]));
            }
            byte[] commandSpecificData = AllenBradleyHelper.PackCommandSpecificData(Slot, cips.ToArray( ));

            return(OperateResult.CreateSuccessResult(AllenBradleyHelper.PackRequestHeader(0x6F, SessionHandle, commandSpecificData)));
        }