Function 43 - Read Device Identification - WEG CFW08 Vector inverter User Manual

Number of registers (byte high)
Number of registers (byte low)
8.20.3.7 Function 43 - Read
Device Identification
Query (Master)
Slave address
Function
Initial register address (byte high)
Initial register address (byte low)
Number of registers (byte high)
Number of registers (byte low)
Byte Count Field (number of data bytes)
Data 1 (high)
Data 1 (low)
Data 2 (high)
Data 2 (low)
etc...
CRC-
CRC+
Example: writing of the acceleration time (P100) = 1,0 s and deceleration
time (P101) = 2,0 s, of a CFW-08 at the address 20:
Query (Master)
Field
Slave address
Function
Initial register (byte high)
Initial register (byte low)
Byte Count
P100 (high)
P100 (low)
P101 (high)
P101 (low)
CRC-
CRC+
As the two parameters have a resolution of a decimal place for writing of
1.0 and 2.0 seconds, thus the values 10 (000Ah) and 20 (0014h) should
be transmitted.
Auxiliary function that permits reading of the manufacturer, model and
version of the product firmware. It has following structure.
CFW-08 OPTIONS AND ACCESSORIES
Initial register address (byte high)
Initial register address (byte low)
Number of registers (byte high)
Number of registers (byte low)
Value
14h Slave address
10h
00h Initial register (byte high)
64h Initial register (byte low)
00h Number of registers (byte high)
02h Number of registers (byte low)
04h
00h
0Ah
00h
14h
91h
75h
Response (Slave)
Slave address
Function
CRC-
CRC+
Response (Slave)
Field
Function
CRC-
CRC+
Value
14h
10h
00h
64h
00h
02h
02h
D2h
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