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11.20
7.3.3. Base Mode Parameter Access
The parameter access is done by a
“request block” with the segments:
Addressing (slot, subslot, index)
Request Header
Parameter Address
Parameter Value
Write Request
Slot
BYTE ever 0x01
Subslot
BYTE ever 0x01
Index
WORD ever 0xB02E
Data Length
BYTE from this point onward (excl.)
Data
Request Header
Request Reference
BYTE optional
Request ID
BYTE 0x01=
“Read” / 0x02 = “Write“
Drive Object ID
BYTE ever 0x00
Number of Parameters
BYTE ever 0x01
Parameter Address Attribute
BYTE
No. of Elements/Values BYTE
Parameter Number
WORD
Subindex
WORD
Parameter Value
Format / Data Type
BYTE
only for “Write Request”
Number of values
BYTE only for
“Write Request”
Values to write (if any)
BYTE only for
“Write Request”
Write Response
Slot
BYTE ever 0x01
Subslot
BYTE ever 0x01
Index
WORD ever 0xB02E
Data Length
BYTE from this point onward (excl.)
Read Request
Slot
BYTE ever 0x01
Subslot
BYTE ever 0x01
Index
WORD ever 0xB02E
Data Length
BYTE from this point onward (excl.)
Read Response
Slot
BYTE ever 0x01
Subslot
BYTE ever 0x01
Index
WORD ever 0xB02E
Data Length
BYTE from this point onward (excl.)
Data
Response Header Response Reference
BYTE see request (mirrored)
Response ID
BYTE see request (mirrored)
Drive Object ID
BYTE ever 0x00
Number of Parameters
BYTE ever 0x01
Parameter Value
Format / Data Type
BYTE
Number of values
BYTE Number of values (not bytes)
Values
see
Format
Data types
Field
“Format / Data Type” applies following encodings according to IEC61158-5-10:
0x04
INT32
(32 bit / 4 bytes signed)
0x06
UINT16
(16 bit / 2 bytes unsigned)
0x07
UINT32
(32 bit / 4 bytes unsigned)
0x0A
octet string
(8 bit / 1 byte)