Siemens SIMATIC S7-1500 Function Manual page 121

Glossary
HMI device
Human Machine Interface, device for visualization and control of automation processes.
HMI diagnostics view (WinCC)
The HMI diagnostics view is an object in WinCC. The HMI diagnostics view can only be used
with Comfort Panels and WinCC Advanced RT.
I/O module
Device of the distributed I/O that is used as interface between the controller and the process.
Industrial Ethernet
Guideline for setting up Ethernet in an industrial environment. The main difference to the
standard Ethernet is the mechanical current carrying capacity and interference immunity of
the individual components.
Memory reset
Procedure to set the memories of the CPU to a defined initial state.
Operating states
Operating states describe the behavior of a single CPU at a specific time.
The CPUs of the SIMATIC standard systems feature the STOP, STARTUP and RUN
operating states.
The primary CPU of the S7-1500R/H features the STOP, STARTUP, RUN, RUN-Syncup
and RUN-Redundant operating states. The backup CPU features the STOP, SYNCUP and
RUN-Redundant operating states.
PLC
Programmable Logic Controller: Component of the CNC by which the machine manufacturer
coordinates the interaction between the NC requirements (part program), the inputs of the
machine operator and the current machine state.
Primary CPU
Role of a CPU in the S7-1500R/H redundant system. If the R/H system is in RUN-Redundant
system state, the primary CPU controls the process. The backup CPU processes the user
program synchronously and can take over the process control if the primary CPU fails.
PROFIBUS
Standard for fieldbus communication in automation technology.
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Function Manual, 11/2019, A5E03735838-AF
Diagnostics