Goodrive600 series high-performance multifunction VFD
Communication networking
-156-
COB-ID
Request
code
Object index
Sub-index
Request data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x603
0x2B
0x01
0x21
0x00
0x01
0x00
0x00
0x00
Example 2: Assume that the address of the VFD slave node is 3, and the function of setting 1 is defined as "Set
frequency". To set the frequency to 50.00 Hz (that is, setting 1=0x1388), the master node transmits the following SDO
command.
COB-ID
Request
code
Object index
Sub-index
Request data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x603
0x2B
0x00
0x21
0x03
0x88
0x13
0x00
0x00
Example 3: To read the running status of the VFD whose address is 3, the master node transmits the following SDO
command.
COB-ID
Request
code
Object index
Sub-index
Request data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x603
0x40
0x01
0x20
0x00
0x00
0x00
0x00
0x00
If the VFD is running forward, the following SDO command is returned to the master node.
COB-ID
Request
code
Object index
Sub-index
Request data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x583
0x4B
0x01
0x20
0x00
0x01
0x01
0x00
0x00
Example 4: Assume that the address of the VFD slave node is 3, and the function of Returned value 1 is defined as
"Running frequency". To read the VFD running frequency, the master node transmits the following SDO command.
COB-ID
Request
code
Object index
Sub-index
Request data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x603
0x40
0x00
0x20
0x03
0x00
0x00
0x00
0x00
If the VFD running frequency is 50.00Hz, the following SDO command is returned to the master node.
COB-ID
Request
code
Object index
Sub-index
Request data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x583
0x4B
0x00
0x20
0x03
0x88
0x13
0x00
0x00
6.5 PROFIBUS-DP-to-CANopen networking
6.5.1 PROFIBUS-DP communication protocol introduction
PROFIBUS is an international open fieldbus standard that can implement data exchange between various automation
components. It is widely applicable to automation in various industries, such as the manufacturing, process, building,
transportation, and power industries. It provides effective solutions for implementing integrated automation and
intelligentization of field devices.
PROFIBUS consists of three mutually compatible components, namely PROFIBUS-Decentralised Peripherals (DP),
PROFIBUS-Process Automation (PA), and PROFIBUS-Fieldbus Message Specification (FMS). It adopts the