Siemens ET 200pro Operating Instructions Manual page 529

Device name
Because a fixed IP address is assigned to the device name, an IO device must have a
device name in order to be addressed by an IO controller. With PROFINET, this procedure is
used because names are easier to handle than complex IP addresses.
The assignment of a device name for a specific IO device can be compared with the setting
of the PROFIBUS address for a DP slave.
An IO device is delivered without a device name. The IO device can only be addressed by
an IO controller after the device has been assigned a device name with the IO
supervisor/PC, for example, for the transfer of configuration data (IP address, for example)
during startup or for the exchange of user data in cyclic operation.
The device name can alternatively be written in the programming device directly on the
SIMATIC Micro Memory Card (for the ET 200pro IO device).
Diagnostics
The detection, localization, classification, visualization and further evaluation of errors,
disturbances and alarms.
Provides monitoring functions which are executed automatically when the system is in RUN.
Increases plant availability by reducing commissioning times and downtimes.
Distributed I/O systems
I/O systems that are not integrated into the central controller, but rather at distributed remote
locations. Example:
● ET 200M, ET 200X, ET 200L, ET 200S, ET 200pro
● DP/AS-I Link
● S5-95U with PROFIBUS DP slave interface
● Further DP slaves supplied by Siemens or other vendors.
Distributed I/O systems are interconnected with the DP master via PROFIBUS DP.
DP master
A → master which operates in compliance with IEC 61784-1: 2010 Ed3 CP 3/1.
DP slave
A → slave which operates on PROFIBUS based on the PROFIBUS DP protocol in
compliance with IEC 61784-1: 2010 Ed3 CP 3/1.
DP standard
Bus protocol of the ET 200 distributed I/O system according to IEC 61784-1:2010 Ed3
CP 3/1.
ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08
Glossary
529