FC 300 Profibus
Parameters
Object and Data Types Supported by FC 300
Data types supported by FC 300
Data type
Short name
Description
3
I2
Integer 16
4
I4
Integer 32
5
-
Unsigned 8
6
O2
Unsigned 16
7
O4
Unsigned 32
9
-
Visible string
10
-
Byte string
33
N2
Standardized value (16 bit)
35
V2
Bit sequence
41
E2
Byte
42
C4
Word
Standardized Value
The frequency reference value is transmitted to the frequency converter in the form of a 16-bit word. The
value is transmitted in integers (0-32767). The value 16384 (4000 Hex) corresponds to 100%. Negative
numbers are formed with the aid of the twos complement.
0% = 0 (0h), 100% is 2
14
(4000h)
Data type
N2
Range
-200%...+200%
Resolution
2
-14
= 0.0061%
Length
2 bytes
Notation: 2s complement notation.
MSB is 1st bit after sign bit in 1st byte.
Sign bit = 0 = positive number
Sign bit = 1 = negative number
Bit
8
7
6
5
4
3
2
1
Byte 1
SIGN
2
14
2
13
2
12
2
11
2
10
2
9
2
Byte 2
2
7
2
6
2
5
24
2
3
2
2
2
1
2
0
Bit sequence
16 boolean values for control and presentation of user functions.
Notation is binary
Bit
8
7
6
5
4
3
2
1
Byte 1
15
14
13
12
11
10
9
8
Byte 2
7
6
5
4
3
2
1
0
68
MG.33.C2.02 - VLT is a registered Danfoss trademark
