Danfoss VLT AutomationDrive FC 361 Series Design Manual page 82

Appendix
11.5.6 Data Field
The structure of data blocks depends on the type of telegram. There are 3 types, and the type applies to both control
telegrams (master⇒slave) and response telegrams (slave⇒master).
The 3 types of telegram are:
Process block (PCD)
The PCD is made up of a data block of 4 bytes (2 words) and contains:
•
Control word and reference value (from master-to-slave).
•
Status word and present output frequency (from slave-to-master).
STX LGE
Illustration 11.7 PCD
Parameter block
The parameter block is used to transfer parameters between master and slave. The data block is made up of 12 bytes (6
words) and also contains the process block.
STX
Illustration 11.8 Parameter Block
11 11
Text block
The text block is used to read or write texts via the data block.
STX LGE
Illustration 11.9 Text Block
80
ADR
LGE ADR PKE IND
ADR PKE IND
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VLT® AutomationDrive FC 361
PCD1
PWE PWE
high low
Ch1 Ch2 Chn
PCD2
PCD1 PCD2
PCD1 PCD2
BCC
BCC
BCC
MG06K102