Glossary
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 09/2016, A5E35873416-AA
143
The ET 200pro distributed I/O system is terminated with the termination module. The
ET 200pro is not ready for operation without an inserted termination module.
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.
see "Interrupt, time-delay"
see "Interrupt, time-of-day"
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).
see "Interrupt, update"
SIMATIC differentiates between the operating system of the CPU and user programs. 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 (e.g. CPU) and can be structured in smaller units.
See "Restart"