Siemens SIMATIC ET 200pro Operating Instructions Manual page 153

Glossary
Termination module
The termination module terminates the ET 200pro distributed I/O system. The ET 200pro is
not ready for operation without an inserted termination module.
TIA Portal
Totally Integrated Automation Portal
The TIA Portal is the key to the full performance capability of Totally Integrated Automation.
The software optimizes operating, machine and process sequences.
Time-delay interrupt
See "Interrupt, time-delay"
Time-of-day interrupt
See "Interrupt, time-of-day"
Timer
Timers are components of the system memory of the CPU. The operating system
automatically updates the content of the "timer cells" asynchronously to the user program.
STEP 7 instructions define the precise function of the timer cell (e.g. on-delay) and trigger its
execution (e.g. start).
Update interrupt
See "Interrupt, update"
User program
SIMATIC differentiates between the operating system of the CPU and user program. The
user program contains all instructions and declarations as well as data for the signal
processing that enable a plant or process to be controlled. The user program is assigned to
a programmable module (a CPU, for example). You can structure the user program into
smaller units.
Warm restart
See "Restart"
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CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC