The configuration is provided as an example in the section "Redundant I/O (Page 38)".
● ET 200M with redundant IM 153-2
Two IM 153-2 interface modules are mounted on the active bus module in the distributed
I/O device for redundant operation.
● ET 200SP HA with redundant IM 155-6
Two IM 155-6 interface modules are mounted in the distributed I/O device for redundant
operation.
● ET 200iSP with redundant IM 152-1
Two IM 152-1 interface modules are mounted on the active TM-IM/IM terminal module in
the distributed I/O device for redundant operation.
Note
The signal modules of the ET 200iSP cannot be used redundantly.
Additional information
● Section "How to configure the redundant interface module for the I/O device (Page 133)"
● Section "Failure of redundant interface modules (Page 199)"
● Manual
SIMATIC, Distributed I/O Device ET 200M
● Manual
SIMATIC, Distributed I/O Device ET 200SP HA
● Manual
SIMATIC, Distributed I/O Device ET 200iSP
● Manual
Automation System S7-400H; High Availability Systems
4.1.3.2 Redundant I/O modules
Configuring redundant input/output modules
Redundant I/O modules enable you to increase the availability in the I/O area.
The following configurations are possible with redundant I/O modules:
● Redundant input/output modules in redundant distributed I/O
An example of this is the configuration shown in the section "Redundant I/O (Page 38)"
● Redundant input/output modules in single-channel switched distributed I/O
An example of this is the configuration shown in the section "Switched I/O (Page 42)"
Note
Refer to the interconnection examples for redundant I/O (redundant input/output modules)
in the manual
Automation System S7-400H; High Availability Systems
.
● Redundant input/output modules in IO Redundancy:
An example of this is the configuration shown in the section "Redundant I/O (Page 38)".
High availability solutions in PCS 7
4.1 Solutions for the I/O
High Availability Process Control Systems (V9.0)
46 Function Manual, 05/2017, A5E39221836-AA
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