capable of reading parameters containing data type 9 (text
string).
15-40 FC Type
to
15-53 Power Card Serial Number
contain
data type 9.
For example, read the unit size and mains voltage range in
15-40 FC Type
. When a text string is transferred (read), the
length of the is variable, and the texts are of different
lengths. The length is defined in the second byte of the ,
LGE. When using text transfer the index character indicates
whether it is a read or a write command.
To read a text via the PWE block, set the parameter
command (AK) to ’F’ Hex. The index character high-byte
must be “4”.
Some parameters contain text that can be written to via
the serial bus. To write a text via the PWE block, set the
parameter command (AK) to ’F’ Hex. The index characters
high-byte must be “5”.
PWE
high
PWE
low
Read text
Write text
130BA275.10
PKE
IND
Fx xx
04 00
Fx xx
05 00
11.6.11 Data Types Supported by FC 300
Unsigned means that there is no operational sign in the .
Data types
Description
3
Integer 16
4
Integer 32
5
Unsigned 8
6
Unsigned 16
7
Unsigned 32
9
Text string
10
Byte string
13
Time difference
33
Reserved
35
Bit sequence
11.6.12 Conversion
The various attributes of each parameter are displayed in
the section Factory Settings. Parameter values are
transferred as whole numbers only. Conversion factors are
therefore used to transfer decimals.
4-12 Motor Speed Low Limit [Hz]
has a conversion factor of
0.1.
To preset the minimum frequency to 10 Hz, transfer the
value 100. A conversion factor of 0.1 means that the value
transferred is multiplied by 0.1. The value 100 is thus
perceived as 10.0.
Examples:
0s --> conversion index 0
0.00s --> conversion index -2
0ms --> conversion index -3
0.00ms --> conversion index -5
Conversion index
Conversion factor
100
75
74
67
6
1000000
5
100000
4
10000
3
1000
2
100
1
10
0
1
-1
0.1
-2
0.01
-3
0.001
-4
0.0001
-5
0.00001
-6
0.000001
-7
0.0000001
Table 11.1 Conversion table
RS-485 Installation and Set...
FC 300 Design Guide
260
MG.33.BD.02 - VLT
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