Change Ex Module Group; Replacing An Ex I/O Module Without Changing The Type - Siemens SIMATIC ET 200SP HA System Manual

Service and maintenance

9.4 Change Ex module group

9.4 Change Ex module group
9.4.1

Replacing an Ex I/O module without changing the type

Introduction
When an Ex I/O module is plugged in for the first time, part of the coding element snaps into the
Ex BaseUnit.
If an I/O module is replaced, the coding element prevents confusion with another I/O module
type. Another type of I/O module can only be plugged in after the coding element has been
deliberately removed.
You can find information on the coding element in the section "Plugging in an Ex I/O module or
BU cover (Page 57)".
Module identification - read and transfer data
If data for the identification of the components in the system is configured, you need to transfer
this data again after the Ex I/O module has been plugged in.
• Data transmitted to the Ex I/O module for the module identification can be read back into the
project.
Configure the Ex I/O module in HW Config and select the menu command CPU > Upload
Module Identification to PG... .
• Transfer any data for module identification in the configuration after plugging in the Ex I/O
module.
Configure the Ex I/O module in HW Config and select the menu command CPU > Upload
Module Identification... .
Requirement
Read the section "Plant planning (Page 29)".
Note
Module in Zone 2
In general, it is not allowed to pull or plug modules in Zone 2.
Before starting work, ensure that no explosive atmosphere is present and that the power supply
is switched off.
86
Modules for devices in a hazardous area
System Manual, 04/2021, A5E50165138-AA