Service/ModbusTcpPlcService.cs

@@ -104,6 +104,51 @@ namespace MembranePoreTester.Communication
             return await ReadFloatAsync(startAddress);
         }
 
+        /// <summary>
+        /// ushort转为float类型
+        /// </summary>
+        /// <param name="P1"></param>
+        /// <param name="P2"></param>
+        /// <returns>float型数据</returns>
+        public float UshortToFloat(ushort P1, ushort P2)
+        {
+            int intSign, intSignRest, intExponent, intExponentRest;
+            float faResult, faDigit;
+            intSign = P1 / 32768;
+            intSignRest = P1 % 32768;
+            intExponent = intSignRest / 128;
+            intExponentRest = intSignRest % 128;
+            faDigit = (float)(intExponentRest * 65536 + P2) / 8388608;
+            faResult = (float)Math.Pow(-1, intSign) * (float)Math.Pow(2, intExponent - 127) * (faDigit + 1);
+            return faResult;
+        }
+
+        public async Task WriteMultipleRegistersAsync(ushort registerAddress, float value)
+        {
+            await EnsureConnectedAsync();
+            await Task.Delay(100);
+            await _master.WriteMultipleRegistersAsync(_config.SlaveId, registerAddress, SplitFloatToUShortArray((float)value));
+        }
+
+
+        /// <summary>
+        /// Float转为Ushort数组发送
+        /// </summary>
+        /// <param name="value"></param>
+        /// <returns>返回ushort数组</returns>
+        public ushort[] SplitFloatToUShortArray(float value)
+        {
+            byte[] floatBytes = BitConverter.GetBytes(value);
+            ushort[] ushortArray = new ushort[floatBytes.Length / 2];
+
+            for (int i = 0, j = 0; i < floatBytes.Length; i += 2, j++)
+            {
+                ushortArray[j] = BitConverter.ToUInt16(floatBytes, i);
+            }
+
+            return ushortArray;
+        }
+
 
         public void Dispose()
         {