Configuration Control (Option Handling) - Siemens SIMATIC ET 200MP Manual

Product overview
2.2 Functions
Isochronous mode of process data
The process data, transmission cycles via PROFINET IO, and the user program are
synchronized to achieve ultimate deterministic. The input data and output data of distributed
I/O devices in the system are detected and output simultaneously. The isochronous
PROFINET IO cycle forms the corresponding clock generator.
To ensure problem-free isochronous mode, we recommend that you do not use acyclical
services and that you limit diagnostic interrupts to the most crucial ones.
You can find additional information in the STEP 7 online help and
● as of STEP 7 V12, in the PROFINET with STEP 7 V12
(http://support.automation.siemens.com/WW/view/en/49948856) function manual.
2.2.2

Configuration control (option handling)

Properties
Configuration control allows you to prepare your distributed I/O system for future extensions
or changes. Configuration control means that you can configure the planned maximum
configuration of your distributed I/O system in advance and vary it later in a flexible manner
by means of the user program.
Reference
You can find more information
● in chapter Configuration control (option handling) (Page 20)
● on the Internet (http://support.automation.siemens.com/WW/view/en/29430270)
● in the STEP 7 online help.
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IM 155-5 PN ST interface module (6ES7155-5AA00-0AB0)
Manual, 08/2013, A5E03612323-02