Goodrive600 series high-performance multifunction VFD
Communication networking
-147-
Interruption code
Description
be found
Example
For example, slave node 3 reads data from and writes data to the object whose index is 0x1801 and subindex is 03. (The
object whose index is 0x1801 and subindex is 03 indicates the disabled time of PDO2 Tx.)
Write operation example: To modify the disabled time of PDO2 Tx to 1000 ms, the master node transmits the following
write operation command.
COB-ID
Request
code
Object index
Sub-inde
x
Request data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x603
0x2B
0x01
0x18
0x03
0xe8
0x03
0x00
0x00
After receiving the command transmitted from the master node, the slave node transmits the following command
response if the modification is successful.
COB-ID
Response
code
Object index
Sub-inde
x
Response data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x583
0x60
0x01
0x18
0x03
0x00
0x00
0x00
0x00
Read operation example: To read the disabled time of PDO2 Tx, the master node transmits the following read operation
command.
COB-ID
Request
code
Object index
Sub-inde
x
Request data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x603
0x40
0x01
0x18
0x03
0x00
0x00
0x00
0x00
After receiving the command transmitted by the master node, the slave node transmits the following command response
if the current disabled time of PDO2 Tx is 1000ms.
COB-ID
Response
code
Object index
Sub-inde
x
Response data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x583
0x43
0x01
0x18
0x03
0xe8
0x03
0x00
0x00
Read/write error example: The master node transmits the following read operation command to read an object (whose
index is 0x6000 and subindex is 0x00) that cannot be found.
COB-ID
Request
code
Object index
Sub-index
Request data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x603
0x40
0x00
0x60
0x00
0x00
0x00
0x00
0x00
The object cannot be found, and therefore the slave node transmits the following read/write error command response.
COB-ID
Response
code
Object index
Sub-index
Response data
Byte0
Byte1
Byte2
Byte3
Byte4
Byte5
Byte6
Byte7
0x583
0x80
0x00
0x60
0x00
0x00
0x00
0x02
0x06
The error code in the response is 0x06020000, indicating that "Object cannot be found in the object dictionary".
6.4.13 Process data object (PDO)
The communication card provides four PDO Tx commands (whose indexes are 0x1800 to 0x1803) and four PDO Rx
commands (whose indexes are 0x1400 to 0x1403). PDO Rx is a PDO command transmitted from the master node to a