INVT Goodrive350 Series Operation Manual page 59

Communication extension card
Bits 15–00
Bits 15–00
Bits 15–00
Bits 15–00
Note: If the master station requests the value of a parameter, the values in PKW3 and PKW4
of the packet that the master station transmits to the VFD are no longer valid.
Task request and response: When transmitting data to a slave, the master uses a request
number, and the slave uses a response number to accept or reject the request.
Request No. (from the master to a slave)
Request No.
0 No task
1 Requesting the value of a parameter
Modifying
2
[modifying the value only on RAM]
Modifying a parameter value (two words)
3
[modifying the value only on RAM]
Modifying
4
[modifying the value on both RAM and EEPROM]
Modifying a parameter value (two words)
5
[modifying the value on both RAM and EEPROM]
Note: The requests #2, #3, and #5 are not supported currently.
Response No.
0
1
2
3
First word PKW1 (16 bits)
Task or response identification flag
Second word PKW2 (16 bits)
Basic parameter address
Third word PKW3 (16 bits)
Value (most significant word) of a parameter or
error code of the returned value
Fourth word PKW4 (16 bits)
Value (least significant word) of a parameter
Table 4-9 Task identification flag PKW1
Function
a parameter
a parameter
Table 4-10 Response identification flag PKW1
Response No. (from a slave to the master)
No response
Transmitting the value of a parameter (one word)
Transmitting the value of a parameter (two words)
The task cannot be executed and one of the following error number
is returned:
1: Invalid command
2: Invalid data address
PROFINET communication card
value (one word)
value (one word)
Function
-54-
0–7
0–247
00
0–65535
Response signal
Acceptance Rejection
0
1, 2
1 3 or 4
2 3 or 4
1 3 or 4
2 3 or 4
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3