Name: Siemens SIMATIC ET 200SP HA
Brand: Siemens
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6.10 IO redundancy

De󹪝nition

To set up IO redundancy, plug 2 F-AI 8xI 2-/4-wire HART HA I/O modules of the same type next

to each other in a redundant terminal block. You can 󹪝nd additional information on the possible

terminal blocks in section "Terminal blocks (Page 15)".

This terminal block connects the respective process signals of the two modules to a common

process terminal.

• The wiring work is lower compared to connecting separate I/O modules, because the

interconnection of the process signals is integrated into the system.

• The redundant signal processing of the sensors at module level increases the availability of

the system.

Note

IO redundancy is brie󹪞y described below.

You can 󹪝nd more detailed information in the Distributed I/O System; ET 200SP HA System

Manual, "IO redundancy" chapter.

Con󹪝guration and use

The following conditions apply to the setup and use of F-AI 8xI 2-/4-wire HART HA I/O modules

in IO redundancy:

Selection of hardware:

• Redundantly used I/O modules must be identical. This means they must have the same article

number, the same 󹪝rmware version, and a compatible hardware release.

Installation:

• I/O modules of the same type are plugged in pairs next to each other in the same redundant

terminal block (type "TB45R-P32"; 6DL1193-6TP00-0DF1).

IO redundancy:

• The master module must always be con󹪝gured at an even slot, the slave module at the

following odd slot.

• The two redundant I/O modules operate simultaneously and independently. Both modules

generate diagnostics, interrupts, messages, process values, etc.

Applications of the F-I/O module

6.10 IO redundancy

F-AI 8xI 2-/4-wire HART HA

58 Equipment Manual, 09/2021, A5E50557845-AA

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