Danfoss VLT 5000 Instruction Manual page 21

Message EXAMPLE 2: Ramp Stop Motor
Translation
Message sent to Modbus RTU option car Message sent to Modbus R Message sent to Modbus R Message sent to Modbus R Message sent to Modbus R
Examples
Byte 0
Slave
(continued)
Address
01
Byte 8
Force Data
LO
Coils (8-15)
04
Modbus message string:
[01] [0F] [00] [00] [00] [20] [04] [3C] [04] [00] [00] [89] [19]
Message r Message r Message r Message r Message retur
Byte 0
Slave
Address
01
All values are in hexadecimal.
EXAMPLE 3: Coast Stop Motor
Message sent to Modbus R Message sent to Modbus R Message sent to Modbus RTU option car
Message sent to Modbus R Message sent to Modbus R
Byte 0
Slave
Address
01
Byte 8
Force Data
LO
Coils (8-15)
2C
Modbus message string:
[01] [0F] [00] [00] [00] [20] [04] [20] [2C] [00] [00] [ -- ]
Message r Message r Message r Message retur Message r
Byte 0
Slave
Address
01
20
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TU option car TU option car TU option car TU option card fr
Byte 1 Byte 2
Function Coil Addr HI
0F 00
Byte 9 Byte 10
Force Data HI Force Data
Coils (16-23) LO
Coils (24-31)
00 00
Stop Command: 0000010000111100 = 043C
(see FC Protocol Control Word Bit Descriptions)
Speed Command: 0%
etur etur eturned to Modbus master fr etur ned to Modbus master from Modbus R ned to Modbus master fr ned to Modbus master fr ned to Modbus master fr
Byte 1 Byte 2
Function Coil Addr HI
0F 00
TU option car TU option card fr TU option car
TU option car
Byte 1 Byte 2
Function Coil Addr HI
0F 00
Byte 9 Byte 10
Force Data HI Force Data
Coils (16-23) LO
Coils (24-31)
00 00
Coast Command: 0010110000100000 = 2C20
(see FC Protocol Control Word Bit Descriptions)
Speed Command: 0%
etur etur eturned to Modbus master fr etur ned to Modbus master fr ned to Modbus master fr ned to Modbus master fr ned to Modbus master from Modbus R
Byte 1 Byte 2
Function Coil Addr HI
0F 00
d from Modbus master d fr d fr d fr om Modbus master om Modbus master om Modbus master om Modbus master
Byte 3 Byte 4 Byte 5
Coil Addr LO # of Coils HI # of Coils LO
00 00 20
Byte 11
Error Check
[89] [19]
(reversed)
HEX
om Modbus R om Modbus R om Modbus R om Modbus RTU option car TU option car TU option car TU option car TU option card d d d d
Byte 3 Byte 4
Coil Addr LO No. of Coils
HI
00 00
d from Modbus master d fr d fr om Modbus master om Modbus master om Modbus master
d fr om Modbus master
Byte 3 Byte 4 Byte 5
Coil Addr LO # of Coils HI # of Coils LO
00 00
Byte 11
Error Check
--
(reversed)
HEX
om Modbus RTU option car om Modbus R om Modbus R om Modbus R TU option car TU option car TU option card d d d d TU option car
Byte 3 Byte 4
Coil Addr LO No. of Coils
HI
00 00
MG.10.P2.22 - VLT is a registered Danfoss trademark
Byte 6 Byte 7
Byte Count Force Data HI
Coils (0-7)
04 3C
Byte 5 Byte 6
No. of Coils Error Check
LO
20 --
Byte 6 Byte 7
Byte Count Force Data HI
Coils (0-7)
20 04 20
Byte 5 Byte 6
No. of Coils Error Check
LO
20 --