Table 114. Words And Double Words; Table 115. Base Mode Parameter Request; Table 116. Base Model Response - Eaton PowerXL DG1 Series VFD Communications Manual

DPV1 Acyclic Communication
Base model parameter access, whose structure is defined in
the PROFIdrive profile, is always used for communicating the
writing/reading parameters for PROFIdrive drives such as
PowerXL.
Under this arrangement, parameters access always consists
of two elements. Under this arrangement, parameter access
always consists of two elements.
Write request ("Write data set ")
Read request ("Read data set")
Write request or Request can be send via DPV1 master class
1 or master class 2.
The DP V1 command/response part is used for the standard
DP V1 read/Write on the Slot 0, Index47 data block.
Parameter Requests and Parameter Responses
A parameter consists of three segments.
Request Header
ID for the request and number of parameters which are
accessed. Multi-Axis and Modular drives, Addressing of
one DO.
According to the Base Model Parameter access the structure of the parameter
request and parameter response as shown in Table 115 and Table 116.

Table 115. Base Mode Parameter Request

Block Definition
Request Header
1st Parameter Address
nth Parameter Address
1st Parameter Value (s) (only for
request "Change parameter")
nth Parameter Values

Table 116. Base Model Response

Block Definition
Response Header
1st Parameter Value (s) (only after
request "Request")
nth Parameter Values
Byte n+1 Byte n
Request Reference Request ID 0
Axis-No. / DO-ID Axis-No. / DO-ID
Attribute No. of Elements
Parameter Number (PNU)
Subindex
Format Values No. of Values
Byte n+1 Byte n
Request Ref. mirrored Response ID
Axis-No. / DO-ID mirrored No. of Parameters = n
Format Values or Error No.of Values
Values
PowerXL DG1 Series VFD MN040010EN—May 2014 www.eaton.com
PROFIBUS-DP External Communication Cards
Parameter Address
Addressing of a parameter. If several parameters are
accessed, there are correspondingly many parameter
addresses. The parameter address appears only in the
request, not in the response.
Parameter value. Per addressed parameter, there is a
segment for the parameter values. Depending on the
request ID, parameter values appear only either in the
request or in the reply.
Words and Double Words
The following telegram contents are displayed in words (a
word or 2 bytes per line). Words or double words will have
the most significant byte being transmitted first (big endian).

Table 114. Words and Double Words

Word Byte 1
Double Word Byte 1
Byte 3
n
0
2
4
... 4 + 6 × (n-1)
4 + 6 × n
4 + 6 × n +...+ (Format_n × Qty_n)
n
0
2
4
4 +... + (Format_n × Qty_n)
Byte 2
Byte 2
Byte 4
93