Operating instructions

6.4.4. Object and Data Types Supported
Data types supported
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
54 - Time difference without date indication
6.4.5. 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
VLT
®
Profibus 6. Parameters
MG.33.C4.02 - VLT
®
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