feat: add PLC type and instance status enums

wanshenmean

2026-03-13 c28e58d62df8efc28d72699c4ec817078d39d754

 Code/WCS/WIDESEAWCS_Server/WIDESEAWCS_Communicator/SerialPortComm/SerialPortCommunicator.cs

@@ -120,7 +120,7 @@
            }
            catch (Exception ex)
            {

                LogNet.WriteException(Name, $"串口数据接收异常，串口号:{_serialPortName}", ex);
            }
        }