Glossary
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 09/2016, A5E35873416-AA
135
Monitoring functions for the detection, localization, classification, display, and further
evaluation of errors, faults, and alarms. They run automatically while the system is in
operation. Plant availability is increased because these functions reduce commissioning
times and downtimes.
see "Interrupt, diagnostic"
Input/output units that are not inserted in the central controller but rather in a decentralized
configuration at a greater distance from the CPU.
Electronic modules form the interface between the process and the automation system.
There are digital input and output modules as well as analog input and output modules.
see "Industrial Ethernet"
An F-CPU is a central processor with fail-safe capability that is approved for use in SIMATIC
Safety. A standard user program can also run on the F-CPU.
Upgrade of the firmware of modules, e.g. after function extensions, to the newest firmware
version (update).
A function (FC) is a code block with no static data. A function allows you to pass parameters
in the user program. Functions are thus suited for programming frequently recurring complex
functions, such as calculations.
A function block (FB) is a code block with static data. An FB allows you to pass parameters
in the user program. Function blocks are thus suited for programming frequently recurring
complex functions, such as closed-loop controls or operating mode selection.
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