Danfoss VLT Flow Drive FC 111 Design Guide

Field name
Example (hex)
Quantity of coils HI
00
Quantity of coils LO
01
Error check (CRC)
–
8.10.4 Force/Write Multiple Coils (0F hex)
Description
This function forces each coil in a sequence of coils to either on or off. When broadcasting, the function forces the same coil referen-
ces in all attached followers.
Query
The query telegram specifies the coils 17–32 (speed setpoint) to be forced.
N O T I C E
Coil addresses start at 0, that is, coil 17 is addressed as 16.
Table 74: Query
Field name
Example (hex)
Follower address
01 (drive address)
Function
0F (write multiple coils)
Coil address HI
00
Coil address LO
10 (coil address 17)
Quantity of coils HI
00
Quantity of coils LO
10 (16 coils)
Byte count
02
Force data HI (Coils 8–1)
20
Force data LO (Coils 16–9)
00 (reference = 2000 hex)
Error check (CRC)
–
Response
The normal response returns the follower address, function code, starting address, and quantity of coils forced.
Table 75: Response
Field name
Example (hex)
Follower address
01 (drive address)
Function
0F (write multiple coils)
Coil address HI
00
Coil address LO
10 (coil address 17)
Quantity of coils HI
00
Quantity of coils LO
10 (16 coils)
AJ363928382091en-000101 / 130R0983 | 121Danfoss A/S © 2021.04
RS485 Installation and Set-up
VLT® Flow Drive FC 111
Design Guide

Danfoss VLT Flow Drive FC 111 Specifications

General

Brand	Danfoss
Model	VLT Flow Drive FC 111
Category	DC Drives
Language	English