Danfoss VLT Flow Drive FC 111, Design Manual, Page: 125 / 148

Field name Example (hex)
Write byte count 04
Write registers value HI 00
Write registers value LO 00
Write registers value HI 02
Write registers value LO 0E
Error check (CRC) –
Response
The normal response contains the data from the group of registers that were read. The byte count field specifies the quantity of
bytes to follow in the read data field.
Table 83: Response
Field name Example (hex)
Follower address 01
Function 17
Byte count 04
Read registers value HI 00
Read registers value LO 00
Read registers value HI C3
Read registers value LO 50
Error check (CRC) –
8.11 Danfoss FC Control Profile
8.11.1 Control Word According to FC Profile (8-10 Protocol = FC Profile)
Speed ref. CTW
Master-follower
e
3
0
b
a
2
7
4
.1
1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit
no.:
Illustration 78: Control Word According to FC Profile
Table 84: Control Word According to FC Profile
Bit Bit value = 0 Bit value = 1
00 Reference value External selection lsb
01 Reference value External selection msb
02 DC brake Ramp
03 Coasting No coasting
04 Quick stop Ramp
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RS485 Installation and Set-up
VLT® Flow Drive FC 111
Design Guide