Danfoss Modbus RTU, Руководство пользователя

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VLT is a registered Danfoss trade mark MG.10.P2.22
Message
Translation
Examples
(continued) EXAMPLE TWO: Ramp Stop Motor
Message sent to Modbus RTU option card from Modbus master Message sent to Modbus RTU option card from Modbus master
Message sent to Modbus RTU option card from Modbus master Message sent to Modbus RTU option card from Modbus master
Message sent to Modbus RTU option card from Modbus master
Modbus message string:
[01] [0F] [00] [00] [00] [20] [04] [3C] [04] [00] [00] [89] [19]
{
Stop Command: 0000010000111100 = 043C
HEX
(reversed)
(see FC Protocol Control Word Bit Descriptions )
Speed Command: 0%
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
Slave
Addres
Function Coil Addr HI Coil Addr LO # of Coils HI # of Coils LO Byte Count Force Data HI
Coils (0-7)
01 0F 00 00 00 20 04 3C
Byte 8 Byte 9 Byte 10 Byte 11
Force Data
LO
Coils (8-15)
Force Data HI
Coils (1 -23)
Force Data
LO
Coils (2 -31)
Error Check
04 00 00 [89] [19]
Message r Message r
Message r Message r
Message retur etur
etur etur
eturned to Modbus master fr ned to Modbus master fr
ned to Modbus master fr ned to Modbus master fr
ned to Modbus master from Modbus R 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
EXAMPLE THREE: Coast Stop Motor
All values are in hexadecimal.
Message sent to Modbus RTU option card from Modbus master Message sent to Modbus RTU option card from Modbus master
Message sent to Modbus RTU option card from Modbus master Message sent to Modbus RTU option card from Modbus master Message sent to Modbus RTU option card from Modbus master
Message r Message r Message r Message r Message retur etur etur etur eturned to Modbus master fr ned to Modbus master fr ned to Modbus master fr ned to Modbus master fr ned to Modbus master from Modbus R 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 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6
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 --
Modbus message string:
[01] [0F] [00] [00] [00] [20] [04] [20] [2C] [00] [00] [ -- ]
{
Coast Command: 0010110000100000 = 2C20
HEX
(reversed)
(see FC Protocol Control Word Bit Descriptions )
Speed Command: 0%
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6
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 --
Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
Slav
Address
Function Coil Addr HI Coil Addr LO # of Coils HI # of Coils LO Byte Count Force Data HI
Coils (0-7)
01 0F 00 00 00 20 04 20
Byte 8 Byte 9 Byte 10 Byte 11
Force Data
LO
Coils (8-15)
Force Data HI
Coils (16-23)
Force Data
LO
Coils (24-31)
Error Chec
2C 00 00 --