Siemens SIMATIC ET 200AL, System Manual

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Glossary
PROFINET with STEP 7
316
Function Manual, 05/2021, A5E03444486-AL
DCP
DCP ( D iscovery and Basic C onfiguration P rotocol). Enables the assignment of device
parameters (for example, the IP address) using manufacturer-specific
configuration/programming tools.
Default router
The default router is used when data has to be forwarded via TCP/IP to a partner located
outside the local network.
Determinism
Determinism means that a system responds in a predictable (deterministic) manner.
Device
In the PROFINET environment, "device" is the generic term for:
•
Automation systems (for example, PLC, PC)
• Distributed I/O systems
• Field devices (for example, PLC, PC, hydraulic devices, pneumatic devices)
• Active network components (for example, switches, routers)
• Gateways to PROFIBUS, AS interface or other fieldbus systems
Device name (PROFINET device name)
In the PROFINET IO environment, the device name is a unique identifier for the PROFINET IO
interface of a device.
DHCP
DHCP ( D ynamic H ost C onfiguration P rotocol). Protocol that can be used to assign IP
addresses (and other important startup parameters in the Internet environment).
Diagnostics
→ System diagnostics
Diagnostics buffer
The diagnostics buffer represents a backup memory in the CPU, used to store diagnostics
events in their order of occurrence.