GEFRAN-SIEI ARTDriveG SBI-COP/DN-AGy, Instruction Manual

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• SBI-COP/DN-AGy Card Instruction Manual
Eng
lish
B) Read Drive Parameter
In this example is shown the reading of a Drive parameter; the cases of
positive or wrong reading are distinguished.
B-1) Read Drive Parameter Request
The data frame for the Drive parameter reading is composed as follows:
DATA TYPE FIELD VALUE MEANING
Byte Service Code 32hex Get Drive Parameter - Object Specific Service.
See Note
1)
Class ID 66hex Drive Parameter Access Class Object.
See Note
1) Instance ID XXXX Drive Parameter Index in format Lowbyte-High byte.
dn375
1) Byte or Word depending on the type of allocation executed by the Master.
B-2) Read drive parameter - Reply OK
If the Drive parameter is read correctly, the response is:
DATA TYPE FIELD VALUE MEANING
Byte Service Code 32hex
Get Drive Parameter Reply code- Object Specific
Service.
Word Result 0
Result field equal to zero means reading correctly
executed.
Low byte-Low word drive parameter value.
High byte-Low word drive parameter value.
Low byte-High word drive parameter value.
High byte-High word drive parameter value.
dn380
XX
Byte
1)
VALUE
1) The number of bytes of the Value-field depends on the length of the Drive parameter;
i.e. if the Drive parameter type is “Integer” the length of VALUE is 2 bytes.
B-3) Read drive parameter - Reply Error
If Drive parameter reading is rejected, the response is the following:
DATA TYPE FIELD VALUE MEANING
Byte Service Code 32hex
Get Drive Parameter Reply code- Object Specific
Service.
Word Result
XXXX
1
Drive specific error code.
dn385
1) For error codes see table 4.4.1 .
Table 4.4.1: Error codes for the parameter access
RESULT VALUE MEANING
DB_E_ OK 0 No error
DB_E_ NO_IPA -1 Parameter not exist
DB_E_SYSERR -2 Generic error
DB_E_READONLY -4 Attempt to write a read only parameter
DB_E_NOTWRITENOW -5 Attempt to write a parameter when not allowed
DB_E_MINMAXVAL -6 Value exceed limit value