Function 43 - Read Device Identification - WEG CFW-09 User Manual

CHAPTER 8 - CFW-09 OPTIONS AND ACCESSORIES
8.14.3.7 Function 43 - Read
Device Identification
326
Auxiliary function that permits reading of the manufacturer, model and version
of the product firmware. It has following structure.
Query (Master)
Slave address
Function
MEI Type
Read Code
Object Number
CRC-
CRC+
-
-
-
-
-
*The fields are repeated according to the number of objects.
This function permits reading of three information categories:
Basic, Regular and Extended and each category are formed by a group of
objects. Each object is formed by a sequence of ASCII characters For the
CFW-09 are only available basic information formed by three objects:
Object 00 - VendorName: always 'WEG'.
Object 01 - ProductCode: formed by the product code (CFW-09), plus the
rated inverter current.
Object 02 - MajorMinorRevision: it indicates the inverter firmware version,
in 'VX.XX' format.
The read code indicates which information categories are being read and if
the objects are accessed individually of by sequence.
In the example, the inverter supports 01 (basic information in sequence), and
04 (individual access to the objects).
The other fields for the CFW-09 have fixed values.
Example: read o basic information in sequence, starting from object 00, of a
CFW-09 at address 1:
Query (Master)
Field
Slave address
Function
MEI Type
Read Code
Object Number
CRC-
CRC+
-
-
-
-
-
-
-
-
-
-
-
-
Number of Objects
Response (Slave)
Field
Value
Slave address
01h
Function
2Bh
MEI Type
0Eh
Read Code
01h
Conformity Level
00h
More Follows
70h
Next Object
77h
Number of Objects
-
Object Code
-
- Object Length
Object Value
-
Object Code
-
- Object Length
- Object Value
Object Code
-
- Object Length
- Object Value
- CRC-
- CRC+
Response (Slave)
Slave Address
Function
MEI Type
Conformity Level
More Follows
Next Object
Object Code*
Object Length*
Object Value*
CRC-
CRC+
Value
01h
2Bh
0Eh
01h
51h
00h
00h
03h
00h
03h
'WEG'
01h
0Eh
'CFW-09 7.0A'
02h
05h
'V2.09'
B8h
39h