Siemens SIMATIC ET 200MP Manual page 18

Product overview
2.2 Functions
Module-internal Shared Input/Shared Output (MSI/MSO)
The Module-internal Shared Input function allows an input module to make its input data
available to up to two additional IO controllers. Each controller has read access to the same
channels.
The Module-internal Shared Output function allows an output module to make its output data
available to up to two IO controllers. One IO controller has write access. A second IO
controller can have read access to the same channels.
You can find more information on this topic in the STEP 7 online help and
● As of STEP 7 V14, in the PROFINET with STEP 7 V14
(https://support.industry.siemens.com/cs/ww/en/view/49948856) function manual.
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 V14
(https://support.industry.siemens.com/cs/ww/en/view/49948856) function manual.
Submodules
The IM 155-5 PN ST interface module supports the module division of I/O modules in up to 4
submodules. This allows parts of an I/O module to be separately configured and
parameterized.
It is possible to assign each of these submodules to different IO controllers.
The functions:
● Firmware update
● Write I&M data
● Calibration
can only be executed if you have configured submodule 1 during configuration.
18
Interface module IM 155-5 PN ST (6ES7155-5AA01-0AB0)
Manual, 11/2017, A5E03612323-AC