
Product overview
2.2 Functions
Interface module IM 155-6 PN/2 HF (6ES7155-6AU01-0CN0)
Manual, 10/2018, A5E03915895-AH
23
2.2.6
Media redundancy (MRP)
Media redundancy (MRP)
Function for safeguarding communication and plant availability. A ring topology ensures that
an alternative communication path is made available if a transmission route fails.
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
http://support.automation.siemens.com/WW/view/en/49948856
●
As of STEP 7 V5.5, in the system manual PROFINET System Description
http://support.automation.siemens.com/WW/view/en/19292127
2.2.7
Shared device
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. Assign each module or submodule to only
one IO controller. Multiple assignment will result in an error as the module or submodule
will only be available in the first controller.
●
If you reconfigure the shared device configurations without the validity check mentioned
above, you must commission ET 200SP again. This means you must download the
projects of all involved IO controllers to the respective CPU again after reconfiguration. If
necessary, perform a POWER OFF/POWER ON of the interface module.
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
http://support.automation.siemens.com/WW/view/en/49948856
●
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 the controller does not have the same send clock, this results in
communication relationships not being 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.
Summary of Contents for SIMATIC ET 200SP IM 155-6 PN/2 HF
Page 1: ......