Yokogawa AAI543-H03Output Module

CPU

The processor module with calculation error performs self-diagnosis; if the hardware is not assumed abnormal, the error is assumed transient and the module status recovers from “abnormal” to “standby” Vnet/IP interface is an interface available for dual-redundancy mounted on CPU and connected to a dual-redundant control bus.

Each processor module has two MPU. MPU1 and MPU2 mounted on each module perform same control computations and the results are compared by a comparator for each calculation. When the results of both MPU are same, the module is assumed to be normal and the results are transmitted to main memory devices and bus interface modules. The main memory devices with ECC (error-correcting code) correct transient reversed-bit errors.

If the results from MPU1 and MPU2 are not same the comparator assumes it “calculation abnormal”, the active processor module is switched to another one. Watch Dog Timer detects abnormal functions of active processor module. In case abnormal functions are detected, active processor module would be switched to another processor module. The standby processor module performing the same computations as the active module, switching to active status without interruption is possible.

FAQ:

1.Is the part new?
Yes, 100% Original brand new

2.How is the package?
Original factory seal packed

3.What is the lead time?
In stock: 1-3 working days

4.What is the MOQ:
1pcs

5.What is the payment term:
TT and Western Union, other negotiable

6.Where the item ship from?
Xiamen

7.What is the warranty time?
One year

8. How to delivery the PLC Parts?
Kindly tell us your address,we check best cost for you
Or you can use your own courier account or agent, DHL, FEDEX, UPS etc are available.

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