4 object and data types supported, 3 size attribute – GE Industrial Solutions AF-600 FP Profibus DP User Manual
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6.4 Object and Data Types Supported
6.4.1 Parameter and Data Type Structure Description
6.4.2 Parameter Description
PROFIBUS DP has a number of describing attributes. Read/write on parameter description is performed in the PCV part using the RC commands 4/5 and the sub-
index of the desired description element.
6.4.3 Size Attribute
The size index and the conversion index for each parameter can be taken from the parameter list in the respective Operating Instructions.
Physical unit
Size index
Measuring unit
Designation
Conversion index
Conversion factor
0
No dimension
Time
4
second
s
0
1
-1
0.1
-2
0.01
millisecond
ms
-3
0.001
minute
min
70
60
hour
h
74
3600
day
d
77
86400
Energy
8
watthour
Wh
0
1
kilowatthour
kWh
3
1000
megawatthour
MWh
6
10
6
Power
9
milliwatt
mW
-3
0.001
watt
W
0
1
kilowatt
kW
3
1000
megawatt
MW
6
10
6
Rotation
11
rotation per minute
RPM
67
1
Torque
16
newtonmeter
Nm
0
1
kilonewtonmeter
kNm
3
1000
Temperature
17
degree Celsius
ºC
0
1
Voltage
21
millivolt
mV
-3
0.001
volt
V
0
1
kilovolt
kV
3
1000
Current
22
milliampere
mA
-3
0.001
ampere
A
0
1
kiloampere
kA
3
1000
Resistance
23
milliohm
mOhm
-3
0.001
ohm
Ohm
0
1
kiloohm
kOhm
3
1000
Ratio
24
per cent
%
0
1
Relative change
27
per cent
%
0
1
Frequency
28
hertz
Hz
0
1
kilohertz
kHz
3
1000
megahertz
MHz
6
10
6
gigahertz
GHz
9
10
9
AF-650 GP/AF-600 FP Profibus DP Operating Instructions
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