Siemens SIMATIC ET 200S Manual page 582

Glossary
Configuration
The systematic arrangement of the different ET 200S modules (setup)
Device names
Before an I/O device can be addressed by an I/O controller, it must have a device
name. This procedure is selected in PROFINET, because names are easier to
handle than complex IP addresses.
The assignment of a device name for a physical I/O device can be compared with
setting the PROFIBUS address on a DP slave.
An I/O device is delivered without a device name. An I/O device can only be
addressed by an I/O controller, e.g. for transmission of configuration data
(including the IP address) or for interchange of user data in cyclic operation, after a
device name has been assigned.
Diagnostics
Diagnostics involves the identification, localization, classification, display, and
further evaluation of errors, faults, and messages.
Diagnostics includes monitoring functions that run automatically while the system
is in operation. This increases the availability of systems by reducing setup times
and downtimes.
Direct-on-line starter
A direct-on-line starter is a → motor starter that switches a motor on or off directly.
It consists of a circuit breaker and a contactor.
Distributed I/O systems
These are input/output units that are not located in the base unit; instead, they are
distributed at some distance from the CPU.
• ET 200M, ET 200X, ET 200L, ET 200S
• DP/AS-I Link
• S5-95U with PROFIBUS DP slave interface
• Other DP slaves from either Siemens or other vendors
The distributed I/O systems are connected to the DP master by means of
PROFIBUS DP.
DP standard
The DP standard is the bus protocol of the ET 200 distributed I/O system in
accordance with IEC 61784-1:2002 Ed1 CP 3/1.
Glossary-2
ET 200S Distributed I/O System
EWA-4NEB 780602402-12