Preset Multiple Registers (10 Hex); Danfoss Fc Control Profile; Control Word According To Fc Profile (8-10 Protocol = Fc Profile) - Danfoss FC 101 Design Manual

RS-485 Installation and Set...
Response
The normal response is an echo of the query, returned
after the register contents have been passed.
Field Name
Follower Address
Function
Register Address HI
Register Address LO
Preset Data HI
Preset Data LO
Error Check (CRC)
Table 7.30 Response

7.10.6 Preset Multiple Registers (10 HEX)

7 7
Description
This function presets values into a sequence of holding
registers.
Query
The query message specifies the register references to be
preset. Register addresses start at zero, that is, register 1 is
addressed as 0. Example of a request to preset 2 registers
(set 1-24 Motor Current to 738 (7.38 A)):
Field Name
Follower Address
Function
Starting Address HI
Starting Address LO
No. of Registers HI
No. of registers LO
Byte Count
Write Data HI
(Register 4: 1049)
Write Data LO
(Register 4: 1049)
Write Data HI
(Register 4: 1050)
Write Data LO
(Register 4: 1050)
Error Check (CRC)
Table 7.31 Query
94
®
VLT HVAC Basic Drive FC 101 Design Guide
Example (HEX)
01
06
03
E7
00
01
-
Example (HEX)
01
10
04
19
00
02
04
00
00
02
E2
-
MG18C502 - Rev. 2013-09-06
Response
The normal response returns the follower address, function
code, starting address, and quantity of registers preset.
Field Name
Follower Address
Function
Starting Address HI
Starting Address LO
No. of Registers HI
No. of registers LO
Error Check (CRC)
Table 7.32 Response

7.11 Danfoss FC Control Profile

7.11.1 Control Word According to FC
Profile (8-10 Protocol = FC profile)
Master-follower
CTW
Bit
no.:
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Illustration 7.13 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
05 Hold output use ramp
frequency
06 Ramp stop Start
07 No function Reset
08 No function Jog
09 Ramp 1 Ramp 2
10 Data invalid Data valid
11 Relay 01 open Relay 01 active
12 Relay 02 open Relay 02 active
13 Parameter set-up selection lsb
15 No function Reverse
Table 7.33 Control Word According to FC Profile
Explanation of the control bits
Bits 00/01
Bits 00 and 01 are used to select between the 4 reference
values, which are pre-programmed in 3-10 Preset Reference
according to the Table 7.35.
Example (HEX)
01
10
04
19
00
02
-
Speed ref.