Communication
2.2 PROFINET communication
SIMOCODE pro - Communication
58 Function Manual, 11/2018, A5E40508495002A/RS-AC/003
Shared device
Shared device provision
PROFINET IO provides the shared device function. Shared device enables access by two IO
controllers to one IO device. Input and output data can be flexibly assigned to different IO
controllers.
This function can only be used in conjunction with the fail-safe DM-F PROFIsafe expansion
module. While one controller accesses the standard I/O data via an IO controller and
performs the routine control, the fail-safe program is processed in a separate, fail-safe
controller that is responsible for safety-related tripping via PROFIsafe.
Shared device configuration
The I/O data is assigned to the IO controllers in the configuration tool of the automation
system (e.g. STEP 7 HW Config).
Note
Shared device function
The system redundancy function is not available when the "Shared Device Function" is used.
Media redundancy
Media redundancy support
The media redundancy protocol manages a redundant network. The data that are
exchanged between IO controller and IO device are transmitted via two different paths.
If both Ethernet ports are used, the function enables communication to be maintained even if
one of the two transmission channels fails.
Settings for media redundancy
In the configuration tool of the automation system (e.g. STEP 7 HW Config), the settings for
media redundancy in the properties of Slot X1 of the relevant PN-IO devices. In particular,
the MRP domain is assigned and the role is defined that will be taken over in the MRP by the
device. SIMOCODE pro V PN (GP) supports ring redundancy in the role as a client.
Information material for media redundancy
You will also find useful information about "Ring redundancy with the Media Redundancy
Protocol (MRP)" under Ring redundancy with the Media Redundancy Protocol (MRP)
(https://support.industry.siemens.com/cs/ww/en/view/109739614)
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