INVT Goodrive20-EU VFD Series, Руководство по эксплуатации

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Goodrive20-EU Series VFD Communication protocol
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7.3.2 ASCII mode
7.3.2.1 Command code 03H (0000 0011), reading N words (N
≤ 16)
For instance: As for the VFD whose slave address is 01H, the starting address of internal
storage is 0004, read two words continuously, the structure of this frame is listed as below:
ASCII master command message (the
command sent from the master to the VFD
ASCII slave response message (the
message sent from the VFD to the master)
START ':' START ':'
ADDR
'0'
ADDR
'0'
'1' '1'
CMD
'0'
CMD
'0'
'3' '3'
High bit of starting address
'0'
Byte number
'0'
'0' '4'
Low bit of starting address
'0'
High bit of data address 0004H
'1'
'4' '3'
High bit of data number
'0'
Low bit of data address 0004H
'8'
'0' '8'
Low bit of data number
'0'
High bit of data address 0005H
'0'
'2' '0'
LRC CHK Hi 'F'
Low bit of data address 0005H
'0'
LRC CHK Lo '6' '0'
END Hi CR LRC CHK Hi '5'
END Lo LF LRC CHK Lo 'D'
END Hi CR
END Lo LF
7.3.2.2 Command code 06H (0000 0110), writing a word
For instance: Write 5000 (1388H) to the 0004H address of the VFD whose slave address is
02H, then the structure of this frame is listed as below:
ASCII master command message (the
command sent by the master to VFD)
ASCII slave response message (the
message sent by the VFD to master)
START ':' START ':'
ADDR
'0'
ADDR
'0'
'2' '2'
CMD
'0'
CMD
'0'
'6' '6'
High bit of write data
'0'
High bit of write data
'0'
'0' '0'