User`s guide

201
CHAPTER 8 - CFW-08 OPTIONS AND ACCESSORIES
Query (Master)
Slaveaddress
Function
MEI Type
Read Code
Object Number
CRC-
CRC+
Response (Slave)
Slaveaddress
Function
MEI Type
Conformity Level
More Follows
Next Object
Number of Objects
Object Code
(*)
Object Length
(*)
Object Value
(*)
CRC-
CRC+
Table 8.29 -
Function 43 structure
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 bya sequence ofASCII characters For the CFW-08
are onlyavailable basicinformationformedbythreeobjects:
-
Object 00 - VendorName: always ‘WEG’.
-
Object 01 - ProductCode: formed bythe product code
(CFW-08), 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 or
bysequence. Intheexample,theinverter supports01(basic
information in sequence) and 04 (individual access to the
objects) codes.
The other fields for the CFW-08 have fixed values.
Example: read of basic information in sequence, starting
from object 00, of a CFW-08 at address 1.
(*)
The fields are repeated according to the number of objects.