Danfoss 5000 Flux Manual page 15

Time difference (to table "Objects and data types
supported by the VLT")
The data type time difference is a measure of time
in milliseconds.
Notation: Time difference
0 ≤ i ≤ (2
Value range:
Coding: The time is represented as a binary
32 bit value (4 bytes). The first
4 (MSB) bits are always zero (see
table below).
Data coding of the data type time difference
Bit Byte 4 Byte 3
23
8 0 ms 2 ms
7 0 ms 2 22 ms
6 0 ms 2 21 ms
20
5 0 ms 2 ms
4 2 27 ms 2 19 ms
3 2 26 ms 2 18 ms
25 17
2 2 ms 2 ms
1 2 24 ms 2 16 ms
Physical Size
size index
0
Time 4
Energy 8
Power
9
Rotation 11
Torque 16
Temperature 17
Voltage 21
Current 22
Resistance 23
Relation 24
Relative change 27
Frequency 28
MG.90.D1.02 – VLT is a registered Danfoss trademark
VLT ® 5000/5000 Flux/6000 HVAC/8000 AQUA PROFIBUS
32 -1) milliseconds [ms]
Byte 2 Byte 1
15 7
2 ms 2 ms
2 14 ms 2 6 ms
2 13 ms 2 5 ms
12 4
2 ms 2 ms
2 11 ms 2 3 ms
2 10 ms 2 2 ms
9 1
2 ms 2 ms
2 8 ms 2 0 ms
Unit of Abbreviation
measurement
No dimension
Second
Millisecond
Minute
Hour
Day
Watt-hour
Kilowatt-hour
Megawatt-hour
Milliwatt
Watt
Kilowatt
Megawatt
Revolutions per minute
Newtonmeter
Kilonewtonmeter
Degree Celsius
Millivolt
Volt
Kilovolt
Milliampere
Ampere
Kiloampere
Milliohm
Ohm
Kiloohm
Percent
Percent
Hertz
Kilohertz
Megahertz
Standardized value
A linear value
0% = 0 (0h), 100% are 2
Data type
Range
Resolution
Length
Note: Two's complement notation
MSB is the first bit after the sign bit of the first
byte.
Sign bit = 0 = positive number
Sign bit = 1 = negative number
Bit 8 7
Byte 2 SIGN 2 14
Byte 1 2 7 2 6
Conversion
index
0
s 0
-1
-2
ms -3
min 70
h 74
d 77
Wh 0
kWh 3
MWh 6
mW -3
W 0
kW 3
MW 6
RPM 0
Nm 0
kNm 3
°C 0
mV -3
V 0
k V 3
mA -3
A 0
kA 3
mOhm -3
Ohm 0
kOhm 3
% 0
% 0
Hz 0
kHz 3
MHz 6
(4000h)
14
N 2
-200% ... 200% – 2 –14
2 –14 = 0,0061%
2 bytes
6 5 4 3 2
2 13 2 12 2 11 2 10 2 9
2 5 2 4 2 3 2 2 2 1
Conversion
factor
1
1
0,1
0,01
0,001
60
3600
86400
1
1000
10
6
0,001
1
1000
10
6
1
1
1000
1
0,001
1
1000
0,001
1
1000
0,001
1
1000
1
1
1
1000
10
6
1
2 8
2 0
15