CHAPTER 4: COMMUNICATION
4.36
EP OS MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
4.2.4 Profibus
termination
The Profibus port provides a 5V, so no external voltage is required (pin 5 (V-) and pin 6 (V+) of the 9-D connector). This
5Vdc can be used for an active termination.
4.2.5 Profibus DP-parameterization
The EntelliPro ES supports parameterization. The relay keeps its user parameter data / setpoints in a non-volatile
memory and does not need device related parameterization during startup of the DP master. The EntelliPro ES WinESG
user software is the best tool for user parameterization of the EntelliPro ES device. See Chapter 5 for the WinESG
setup.
EntelliPro can be parameterized via Profibus Class 1 using Profibus parameterized service. In this case only default
configurations are allowed.
4.2.6 Communication set up and station addresses
The Profibus-DPV1 basic configuration has one DP master and one DP slave. In a typical bus segment up to 32 stations
can be connected (a repeater has to be used if more than 32 stations operate on a bus). The end nodes on a Profibus-
DP network must be terminated to avoid reflections on the bus line.
During projecting of the bus structure ensure that the bus line is segmented dependent upon the length of the branch
lines, the maximum cable length, and the number of bus stations. The allowed lengths depends upon transmission
speed and are indicated in the profi bus standard DIN 19245-3 and in other publications dealing with this topic.
The Profibus bus address (MAC ID) of the EntelliPro ES slave, which has a range from 1 to 125, can be set via the front
cover switches. At power up, the EntelliPro ES reads its address from the two rotary switches on its front and initializes
the bus communication. Changes of the station address
take effect
with the next reset or power up.
The EntelliPro ES supports autobaud. The available baud rates and other slave specific information needed
for
NOTE: The new Profibus address will only take affect after power cycle the EntelliPro ES
. Two or more EntelliPro ES devices
When the switch position is set to "D" the Profibus address automatically defaults to "126.
When the
left switch
is
set to "8" and
the
right switch
is
set to "7",
P
rofibus address is equal to "87"
.
When the
left switch
is
set to "0" and
the
right switch
is
set to "7",
P
rofibus address is equal to "7"
.
Figure below shows the Profibus
Profibus adress
and connection.
with the same address on the bus line, will generate a communication failure
configuration are in the EntelliPro ES GSD file, which is used by a network configuration program.
To communicate with a Class 1 master (PLC) in a system, the EntelliPro ES GSD file is required.
