Operation
6.9 Communication via PROFINET IO
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
377
6.9.5
PROFINET system redundancy
6.9.5.1
Overview
Redundant systems can be created when using the SINAMICS PROFINET Control Unit
CU320-2 PN.
The precondition for system-redundant systems is what is known as an H system. The
H-system consists of 2 fault-tolerant controls (master and reserve CPU), which are
constantly synchronized via fiber-optic cables. If one controller fails, the other automatically
takes on the job. This reduces system downtimes.
Preconditions
●
SIMATIC controller S7-400H with two PROFINET H-CPUs type 41xH
●
SINAMICS drive with a PROFINET Control Unit (CU320-2 PN)
●
Redundant communication links
Benefits
●
No system downtime in the case of a controller failure
●
Component replacement possible during ongoing operation
●
Configuration changes possible during ongoing operation
●
Automatic synchronization after replacing components
Restrictions
●
IRT is not supported.
●
No simultaneous operation of Shared Device and system redundancy.
●
Maximum 2 cyclic PROFINET connections.
●
System redundancy is only possible via the onboard interface of SINAMICS PROFINET
Control Unit (CU320-2 PN)
●
For the duration of switching from one controller to the other, the setpoints of the last
connection remain frozen and valid.
Summary of Contents for SINAMICS S150 NEMA
Page 1: ......
Page 2: ......
Page 20: ...Table of contents Enclosed Drives 18 Operating Instructions 12 2018 A5E36652151A ...
Page 861: ......
Page 862: ......