Danfoss VLT AutomationDrive FC 300 Design Manual page 257

FC 300 Design Guide
PWE datatype
LOW
Example
In this example, the master reads the Basic characteristics of par. 0-01, Language. The
following telegram must be sent to the adjustable frequency drive:
STX LGE ADR
02 0E 01
STX = 02 Start byte
LGE = 0E Length of remaining telegram
ADR = Sends the adjustable frequency drive on Address 1, Danfoss format
PKE = 4001; 4 in the PKE field indicates a Read Parameter Description and 01 indicates par. 0-01, Language
IND = 0001; 1 indicates that Basic characteristics are required.
The response from the adjustable frequency drive is:
STX LGE ADR
02 0E 01
STX=
IND =
PKE =
PWE =
LOW
No of elements (index 2):
This function indicates the Number of elements (array) of a parameter. The an-
swer to the master will be in PWE
* default setting ( ) display text
How to Program
PKE IND PWE
40 01 00 01 00 00
PKE IND PWE
30 01 00 01 00 00
02 Start byte
0001; 1 indicates that Basic characteristics are sent
3001: 3 in the PKE field indicates Parameter Description Element Transferred, 01
indicates par. 0-01.
0405; 04 indicates that Basic behavior as bit 10 corresponds to Additional text. 05 is
the data type which corresponds to Unsigned 8.
.
LOW
[ ] value for use in communication via serial communication port
MG.33.B3.22 - VLT is a registered Danfoss trademark
Dec. Data type
3 Signed 16
4 Signed 32
5 Unsigned 8
6 Unsigned 16
7 Unsigned 32
9 Visible string
10 Byte string
13 Time difference
33 Reserved
35 Bit sequence
PWE
HIGH LOW
00 00
PWE
HIGH LOW
04 05
PCD1 PCD2 BCC
XX XX XX XX XX
PCD1 PCD2 BCC
XX XX XX XX XX
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