Danfoss VLT AQUA Drive Series User Manual

7.10.3 Force/Write Multiple Coils (0F HEX)
This function forces each coil in a sequence of coils to either ON or OFF. When broadcast the function forces the same coil references in all attached
slaves. .
The query message specifies the coils 17 to 32 (speed set-point) to be forced.
NB!
Coil addresses start at zero, i.e. coil 17 is addressed as 16.
Field Name Example (HEX)
Slave Address 01 (frequency converter 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 10-9)
00 (ref. = 2000hex)
Error Check (CRC) -
Response
The normal response returns the slave address, function code, starting address, and quantity of coiles forced.
Field Name Example (HEX)
Slave Address 01 (frequency converter 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)
Error Check (CRC) -
7 RS-485 Installation and Set-up VLT
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AQUA Drive Design Guide
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Danfoss VLT AQUA Drive Series Specifications

General

Brand	Danfoss
Model	VLT AQUA Drive Series
Category	Media Converter
Language	English