Wiring and Fitting Modules4.4 Insertion and removal of fail-safe modulesET 200S Distributed I/O System - Fail-Safe Modules36 Installation and Operating Manual, 08/2008, A5E00103686-074.4 Insertion and removal of fail-safe modulesInserting and Removing Electronic ModulesIn ET 200S, the same procedure is used to insert and remove both fail-safe modules andstandard modules on terminal modules (see ET 200S Distributed I/O System manual).Inserting and Removing Electronic Modules during OperationF-modules can be inserted and removed during operation in exactly the same way asstandard modules in ET 200S.NoteHot-swapping fail-safe modules in ET 200S during operation generates a communicationerror on the F-CPU.You must acknowledge this communication error in your safety program. (For information onthe response of the F-system after communication errors, output of a fail-safe value and useracknowledgment, refer to theS7 Distributed Safety, Configuration and ProgrammingorS7F/FH Systems, Configuring and Programming).If the communication error is not acknowledged, the useful data of the F modules remainpassivated (inputs and outputs in "0" state).Conditions for Insertion and Removal during OperationThe table below lists the F-modules which support hot-swapping and the conditions underwhich this is possible:Table 4- 1 Conditions for Hot-Swapping Fail-Safe ModulesModule Insertion andRemovalConditionsInterface module No —Fail-safe power module (PM E-F pm) YesFail-safe power module (PM E-F pp) YesFail-safe power module (PM D-F) YesLoad voltage must be switched offFail-safe electronic module (F-DI) Yes —Fail-safe electronic module (F-DI/DO) Yes Load voltage must be switched offFail-safe electronic module (F-DO) Yes Load voltage must be switched offFail-safe electronic module (F-RO) Yes Load voltage must be switched offRemember to Set the PROFIsafe AddressWhen replacing F-modules, ensure that the address switch (DIP switch) settings of the left ofthe modules match.
