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Redundancy and system changes during operation
7
7.1
Redundancy
The basic configuration of redundant FF segments corresponds to the configuration for
PROFIBUS PA.
Configuration with active field distributors enables the following connections of the FF segment
to a redundant DP master system:
● Coupler redundancy with active field distributor (AFD)
A connection to a redundant DP master system on a SIMATIC S7-400H is required for
operation with coupler redundancy.
● Ring redundancy with active field splitter (AFS)
Connection to a redundant or single DP master system is possible for operation with ring
redundancy.
Assembling the bus link
● Ensure you use the correct type-specific bus module for the installation:
– Bus module for FF Link
– Bus module for Compact FF Link
● Possible redundant components on the FF segment:
Type of bus link
Component of the bus link which is connected to the FF segment:
FF Link
FDC 157 fieldbus coupler
Compact FF Link
Compact FF Link (IM 655)
Recommendation:
Connect the following module to the DP master system in the rack 0 of the SIMATIC S7-400H:
● The left IM 153-2 FF interface module of the bus link.
● The left Compact FF Link of the bus link.
Additional information can be found in the following documents:
● Operating Instructions
SIMATIC; Bus Link; FF Link
● Operating Instructions
SIMATIC; Bus Link; Compact FF Link
● Product overview
Process Control System PCS 7; Released Modules
●
SIMATIC; Process Control System PCS 7; Fault-tolerant Process Control Systems; section
"Redundant PROFIBUS PA".
FOUNDATION Fieldbus
Commissioning Manual, 02/2015, A5E32711026-AC
67
Содержание SIMATIC PCS 7 FOUNDATION Fieldbus
Страница 6: ...Security information FOUNDATION Fieldbus 6 Commissioning Manual 02 2015 A5E32711026 AC ...
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Страница 24: ...System planning 4 2 Configuration FOUNDATION Fieldbus 24 Commissioning Manual 02 2015 A5E32711026 AC ...