Danfoss VLT 6102 - Page 33

VLT® Serie 2800 and VLT® Serie 6000 Modbus RTU
Appendix A
- Examples
Byte 8 Byte 9 Byte 10 Byte 11+12
Force Data
LO
Coils (8-15)
ForceDataHI
Coils (16-23)
Force Data
LO
Coils (24-31)
Error Check
04 99 19 [89] [19]
Modbus message string:
[01] [0F] [00] [00] [00] [20] [04] [3C] [04] [00] [00] [89] [19]
[3C]+[04]: Stop Command: 000001000111100 = 043C
HEX
(reversed)
(See Control Word Bit Descriptions)
Speed Command: 0%
Message returned to Modbus master from Modbus RTU
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 + 7
Slave
Address
Function Coil Addr HI Coil Addr LO No. of Coils HI No. of Coils LO Error Check
01 0F 00 00 00 20 [54] [13]
All values are in hexadecimal.
å EXAMPLE 3: Coast Stop Motor
Message sent to Modbus RTU from Modbus master
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
Slave
Address
Function Coil Addr HI Coil Addr
LO
No. of Coils
HI
No. of Coils
LO
Byte Count ForceDateHI
Coils (0-7)
01 0F 00 00 00 20 04 20
Byte 8 Byte 9 Byte 10 Byte 11+12
Force Data
LO
Coils (8-15)
ForceDataHI
Coils (16-23)
Force Data
LO
Coils (24-31)
Error Check
04 00 00 [0E] [81]
Modbus message string:
[01] [0F] [00] [00] [00] [20] [20] [2C] [00] [00] [--]
[20]+[2C]: Coast Command: 0010110000100000 = 2C20
HEX
(reversed)
(See Control Word Bit Descriptions)
Speed Command: 0%
Message returned to Modbus master from Modbus RTU
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 + 7
Slave
Address
Function Coil Addr HI Coil Addr LO No. of Coils HI No. of Coils LO Error Check
01 0F 00 00 00 20 [54] [13]
MG.10.S1.22 - VLT is a registered Danfoss trademark
33