8 SmartWire-DT8.9 Programming202 DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com8.9.7 Data typesThere are special data types defined for PROFIdrive communications:PROFIdrive-specific and standard data types.8.9.7.1 PROFIdrive specificTimeDifference (13 dec )The value used by the DS7-SWD soft starter for TimeDifference is stored inthe Sampling Time (PNU 962) parameter.Example:100 ms = 4971 dec = 136B hex86400000 ms (= 1 day) = 4294967295 dec = FFFFFFFFhexNormalised value: N2N2 is a normalized value for relative scaling. N2 falls within a range of -200 %to +200 %.Conversion examples:Without a sign bit:0 dec = 0x0000hex ≙ 0 %1 dec = 0x0001hex ≙ 0.0061 %16384 dec = 0x4000 hex ≙ 100 %32767 dec = 0x7FFF hex ≙ 199.99 %With a sign bit (bit 15):-1 dec = 0xFFFhex ≙ -0.0061 %-16384 dec = 0xC000 hex ≙ -100 %-32768 dec = 0x8000 hex ≙ -200 %For coding, the most significant bit (MSB) comes directly after the SN bit(sign bit) in the first octet.• SN = 0: Positive numbers, including zero• SN = 1: Negative numbersData type Code(dec)Code(hex)Bytes Value range ResolutionTimeDifference 13 D 2 0 ≦ i ≦ 4294967295 2-31 ≙ 0.021 msData type Code(dec)Code(hex)Bytes Value range ResolutionN2 Normalizedvalue (16 Bit)113 71 2 -200 % ≦ i ≦ (200 - 2 -14) % 2-14 ≙ 0.0061 %