Danfoss VLT AutomationDrive FC 300 Design Manual page 239

FC 300 Design Guide
Process block: Made up of a data block of four
bytes (2 words) and contains:
Control word and reference value (from
-
master to slave)
Status word and present output frequency
-
(from slave to master)
Text block is used to read or write texts
via the data block.
Parameter commands and responses (AK)
Bits no. 12-15 transfers parameter commands from master to slave and returns
processed slave responses to the master.
Parameter commands master=>slave
Bit no.
15 14
0 0
0 0
0 0
0 0
1 1
1 1
1 1
default setting ( )
*
How to Programme
Parameter command
13 12
0 0 No command
0 1 Read parameter value
1 0 Write parameter value in RAM (word)
1 1 Write parameter value in RAM (double word)
0 1 Write parameter value in RAM and EEprom (double word)
1 0 Write parameter value in RAM and EEprom (word)
1 1 Read/write text
display text [ ] value for use in communication via serial communication port
MG.33.B4.02 - VLT is a registered Danfoss trademark
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