Danfoss VLT PROFIBUS DP MCA 101 User Manual

Field Data
type
1)
Values Remark
Response
ID
U8 0x01 Request
parameter (+)
Positive
Identication
of the
response
0x02 Change
parameter (+)
Positive
0x81 Request
parameter (-)
Negative
0x82 Change
parameter (-)
Negative
Axis U8 0x00–0xFF Number (always
0)
–
Number of
parameters
U8 0x01–
0x25
– Limitation:
DP-V1
telegram
length
Attribute U8 0x10 Value –
0x20 Description Data
description
0x30 Text –
Number of
elements
U8 0x01–
0xFA
Quantity 1–234 Limitation:
DP-V1
telegram
length
Parameter
number
U16 0x0001... Number 1–65535 Parameter
number
0xFFFF – –
Subindex U16 0x0000 Number 0–65535 Array pointer
0xFFFF – –
Format U8 See Table 5.12 –
Number of
values
U8 0x01–
0xEA
Quantity 0–234 Limitation:
DP-V1
telegram
length
Error
number
U16 0x0000... Error number –
Table 5.8 Overview: Possible Attributes of the
PROFIdrive Parameter Channel
1) U8 - Unsigned8, U16 - Unsigned16
5.2.10 Request Reference
Unique identication of request/response pair for the
master. The master changes the request reference with
each new request. The slave mirrors the request reference
in the response.
5.2.11 Request ID
0x01 Request parameter.
0x02 Change parameter (data is NOT stored in non-volatile
memory, lost at power cycle).
0x42 Change parameter non-volatile (data is stored in non-
volatile memory).
0x51 Request parameter value double word. All parameters are
formatted and transferred as double word size, regardless
of the actual data type.
0x52 Change parameter value double word. All parameters
must be formatted and sent as double word size,
regardless of data type.
Table 5.9 Dened Request Identication
5.2.12 Response ID
The response ID indicates if the read or write request was
successfully performed in the frequency converter. If the
response is negative, the request is answered as negative
(rst bit=1), and a fault code is entered per partial
response instead of the value.
5.2.13 Axis
Set the axis attribute to 0.
5.2.14 Number of Parameters
For multi-parameter requests that specify the number of
the parameter address and/or parameter value areas. For a
single request, the number is 1.
5.2.15 Attribute
The attribute determines which data to access. The
frequency converter responds to the attributes value
(10 H), description (20 H), and text (30 H).
5.2.16 Attribute Value (10 H)
The attribute value allows reading or writing of parameter
values.
Parameter Access Programming Guide
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Danfoss VLT PROFIBUS DP MCA 101 Specifications

General

Brand	Danfoss
Model	VLT PROFIBUS DP MCA 101
Category	Media Converter
Language	English