INVT Goodrive350 Series Operation Manual page 20

Communication extension card
of the frequency set through keypad is 10), and the value is returned in PKW4.
Request (master station -> VFD)
PKW1
Request 00 01
0001: Requesting to read a parameter value
Response (VFD -> master station)
PKW1
Response 00 01 00 10 00 00 50 00
Example 2: Modifying the value of a parameter (on both RAM and EEPROM)
You can set PKW1 to 4 and PKW2 to 10 to modify a frequency set through keypad (the
address of the frequency set through keypad is 10), and the value to be modified (50.00) is in
PKW4.
Request (master station -> VFD)
PKW1
Request 00 04 00 10 00 00 50 00 xx
Response (VFD-> master station)
PKW1
Response 00 01 00 10 00 00 50 00 xx xx xx xx xx xx
PZD examples: The transmission of the PZD zone is implemented through VFD function code
settings. For the function codes, see the related INVT VFD operation manual.
Example 1: Reading the process data of a VFD
In this example, PZD3 is set to "8: Rotating speed of the running" through the VFD parameter
PKW2 PKW3
00 10 00 00
0010: Parameter address
PKW2 PKW3
5000: Parameter value in address 10
0001: Response (parameter value updated)
PKW2 PKW3
004: Parameter value to be modified
PKW2 PKW3
0001: Response (parameter value updated)
PKW4 CW
00 00 xx xx
PKW4 CW
xx xx
PKW4 CW
xx xx
5000: Parameter value in address
PKW4 CW
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PROFIBUS communication card
PZD2 PZD3
xx xx xx xx
PZD2 PZD3
xx xx xx xx
PZD2 PZD3
xx xx xx
PZD2 PZD3
... PZD12
... xx xx
... PZD12
... xx xx
... PZD12
xx xx
... PZD12
... xx xx