Eaton Power XL SmartWire-DT DX-NET-SWD Series Manual

Contents

4 Commissioning4.5 Acyclic data48 DX-NET-SWD... 08/14 MN04012009Z-EN www.eaton.comBit sequence: V2In this bit string, 16 variables of type BOOLEAN are represented in twooctets. Code: 115 dec = 73 hexTime constant: D2Values of time data type D2 always refer to a specific, constant scan time T a.This time Ta is the shortest scan time (defined in PNU 962) and is requiredhere in order to evaluate D2.The value for D2 can be calculated as follows: D2 = i x Ta/16384Time constant: T2Values of time data type T2 are always relative to a specific constant scantime T a. T a is the shortest scan time (defined in PNU 962).It is required here to calculate T2. The following formula applies: T2 = i x TaStandard data typesOctet Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit3 Bit 2 Bit11 15 14 13 12 11 10 9 82 7 6 5 4 3 2 1 0data type Code(dec)Code(hex)Byte Value Range ResolutionD2 Time constant 120 7 8 1 0 ≦ i ≦ (2 - 2 -14) x T a 2 -14 x T aData type Code(dec)Code(hex)Byte Value Range ResolutionT2 Time constant (16 Bit) 118 7601 1 0 ≦ i ≦ 32767 x T a TaT2 Time constant (32 Bit) 11 9 77 2 0 ≦ i ≦ 4294967295 x T a TaData type CodingInteger8 2Integer16 3Integer32 4Unsigned16 6Unsigned32 7OctetString 10￫ More detailed information on the data types: IEC 61158-5: 2003