Danfoss VLT PROFIBUS DP MCA 101 User Manual

1.4.2 Technical Overview
PROFIBUS
PROFIBUS is an international standard for eldbus
communication in automation technology (IEC 61158 and
IEC 61784). The member companies of the PROFIBUS
International User Community support the standard.
For information about PROFIBUS and downloads for
PROFIBUS DP and the PROFIdrive prole, refer to
www.Probus.com.
PROFIBUS DP-V1
The PROFIBUS DP protocol enables communication
between PROFIBUS masters and slaves.
Congure communication via MCT 10 Set-up Software.
Cyclic/acyclic communication
•
PLC communicates with telegrams of constant
length.
•
Fits time-critical requirements.
•
Cyclic transmission via PPO types.
•
Extended diagnosis.
130BA078.11
PLC
Illustration 1.1 PROFIBUS DP-V0
Features of a master class 1 connection:
•
Cyclic data exchange (DP-V0).
•
Acyclic read/write on parameters.
•
Extended diagnosis.
The acyclic connection is xed and cannot be changed
during operation.
Features of a master class 2 connection:
•
Initiate/abort acyclic connection.
•
Acyclic read/write on parameters.
The acyclic connection can be established (initiated) or
removed (aborted) dynamically even when a master class 1
is active on the network. Use the DP-V1 acyclic connection
for general parameter access as an alternative to the PCV
parameter channel.
130BA079.11
PLC
Master class 1
PC tool
Master class 2
Illustration 1.2 PROFIBUS DP-V1
The PROFIBUS DP extension DP-V1 allows acyclic as well as
cyclic data communication. This feature can be used by a
DP master class 1, for example PLC, as well as a DP master
class 2, for example PC tool.
1.5
Approvals and Certications
More approvals and certications are available. For more
information, contact a local Danfoss partner.
Introduction
VLT
®
PROFIBUS DP MCA 101
4 Danfoss A/S © 01/2016 All rights reserved. MG37G202
11

Danfoss VLT PROFIBUS DP MCA 101 Specifications

General

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