Description of the device
4
4.1 Components of the product
The following components are supplied with a synchronization module:
● Synchronization module
● Product information
Unpacking and checking
WARNING
Do not use any parts that show evidence of damage
If you use damaged parts, there is no guarantee that the device will function according to the
specification.
If you use damaged parts, this can lead to the following problems:
● Injury to persons
● Loss of the approvals
● Violation of the EMC regulations
● Damage to the device and other components
Use only undamaged parts.
1. Make sure that the package is complete.
2. Check all the parts for transport damage.
4.2 Synchronization modules for S7–400H
Function of the synchronization modules
Synchronization modules are used for communication between two redundant S7-400H CPUs.
You require two synchronization modules per CPU, connected in pairs by fiber-optic cable.
Note
You must use 4 synchronization modules of the same type in an H-system.
The system supports hot-swapping of synchronization modules, and so allows you to influence
the repair response of the fault-tolerant systems and to control the failure of the redundant
connection without stopping the plant.
Synchronization modules for S7-400H
Equipment Manual, 04/2020, A5E50072434-AA 11
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