Danfoss FC 300 Profibus User Manual

FC 300 Profibus
How to Access FC 300 Parameters
Master SAP Slave SAP Meaning
50 (32H) 49 (31H) Master Class 2: Initiate request
50 (32H) 0..48 (0..30H) Master Class 2: Abort, Read, Write, Data transfer
51 (33H) 50, 51 (32H, 33H) Master Class 2: Alarm
51 (33H) 51 (33H) Master Class 2: Read, Write
 How to Use the DP V1 Features for Parameter Access
This section describes how DP V1 can be used for accessing VLT parameters.
For units as complex as frequency converters, the standard PROFIBUS DP V1 read and write services are not
sufficient for accessing the many parameters and attributes in the drive. For this reason, the PROFIdrive
Parameter Channel is defined. Using this parameter Read/Write is performed by addressing a single DP V1
object in the FC 300, in the following way:
Slot = 0
Index = 47
The telegram has the following general structure:
Data UnitPROFIBUS
Tele gram
Header
DP V1
Command/response
PROFIdrive V3.0 Parameter Channel
PROFIBUS
Telegram
Trailer
DU
0
DU
1
DU
2
DU
3
Req. / Res. Header Data
The DP V1 command/response part is used for the standard DP V1 read/Write on the Slot 0, Index 47
data block.
The PROFIdrive V3 Parameter Channel is used to access specific parameter data in the VLT.
For a detailed description of the DP V1 command handling, please refer to the PROFIBUS DP V1 Design
Guide, ref. MG.90.EX.YY.
 DP V1 Read / Write Services
The table below shows the content of the DP V1 command / Response headers and their possible attributes.
DU Byte Value Meaning Specified
Function number
0x48
Idle REQ, RES
0x51 Data transport REQ, RES
0x56 Resource Manager REQ
0x57 Initiate REQ, RES
0x58 Abort REQ
0x5C Alarm REQ, RES
0x5E Read REQ, RES
0x5F Write REQ, RES
0xD1 Data transport negative response
0xD7 Initiate negative response
0xDC Alarm negative response
0xDE Read negative response
0
0xDF Write negative response
1 Always zero Slot number DPV1
2 47 Index DPV1
3 xx Data length DPV1
4..n User data PNO Drive Profile V3.0
44
MG.33.C2.02 - VLT is a registered Danfoss trademark

Danfoss FC 300 Profibus Specifications

General

Brand	Danfoss
Model	FC 300 Profibus
Category	DC Drives
Language	English