5.4.3 Object and 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 Standardised value (16 bit)
35 V2 Bit sequence
54 - Time difference without date
indication
Table 5.22 Data Types Supported
5.4.4
Standardised Value
The frequency reference value transmits to the frequency
converter in the form of a 16-bit word. The value transmits
in integers (0-32767). The value 16384 (4000 hex)
corresponds to 100%. Negative numbers are formed with
the aid of the 2s complement.
0%=0 (0h), 100%=2
14
(4000 h)
Data type
N2
Range -200%...+200%
Resolution
2
-14
=0.0061%
Length 2 bytes
Table 5.23 N2 Data Type
MSB is the first bit after the sign bit in the first byte.
Sign bit=0=positive number
Sign bit=1=negative number
Bit Byte 1 Byte 2
8
SIGN
2
7
7
2
14
2
6
6
2
13
2
5
5
2
12
24
4
2
11
2
3
3
2
10
2
2
2
2
9
2
1
1
2 2
0
Table 5.24 Notation is 2s Complement
Bit sequence
16 boolean values for control and presentation of user
functions.
Bit Byte 1 Byte 2
8
15 7
7
14 6
6
13 5
5
12 4
4
11 3
3
10 2
2
9 1
1
8 0
Table 5.25 Notation is Binary
Parameter Access Programming Guide
32 Danfoss A/S © Rev. 05/2014 All rights reserved. MG37G102
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