Shared Device; Value Status - Siemens SIMATIC ET 200SP Manual

Product overview
2.2 Functions

Shared Device

IO device that makes its data available to up to four IO controllers.
The interface module supports shared device at submodule level.
If there is no validity check of the shared device projects by the Engineering System, note
the following:
● Make sure the configurations are consistent. In particular, modules or submodules may
only be assigned to one controller. Multiple assignment will result in an error; the module
will only be available in the first controller.
● If you reconfigure the shared device configurations without the validity check mentioned
above, you must commission the ET 200SP once again. This means that you have to
reload the projects of all involved IO controllers to the specific CPU after reconfiguration
and, if necessary, switch the interface module POWER OFF/POWER ON.
You can find more information on this topic in the STEP 7 online help and
● As of STEP 7 V5.5, in the system manual PROFINET System Description
(http://support.automation.siemens.com/WW/view/en/19292127).
Note
In the case of a shared device application, make sure that all controllers work with the same
send clock. If controllers do not have the same send clock, the differing send clock can result
in communication relationships that are not set up.
If you set up all controllers in one project, the same send clock is ensured. Set the same
send clock for engineering in separate projects.
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 four IO controllers. Each controller has read access to the same channels.
The module-internal shared output function allows an output module to be operated by up to
four IO controllers. One IO controller has write access. Up to three additional IO controllers
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 V12, in the function manual PROFINET with STEP 7 V13
(http://support.automation.siemens.com/WW/view/en/49948856)

Value status

The IM 155-6 PN HF interface module supports I/O modules with value status.
Additional information on the value status can be found in the manuals for the I/O modules.
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IM 155-6 PN HF interface module (6ES7155-6AU00-0CN0)
Manual, 03/2015, A5E03915895-AF