With the upgrade, the new modules (ET 200M 24 F-DI, ET 200M 8 F-DO and
ET 200M 10 F-DO) are now able to meet the requirements of the safety
levels SIL 3/Cat. 4 and PL e in mixed operation with standard modules,
without the need of a safety protector. The new modules are equipped
with Profisafe-Profil 2.0, which enables them to be used in Profinet
networks in connection with PN/DP couplers. Additional improvements
include the ability to send an acknowledgement following a voltage drop.
Each new module also comes with the “last valid” function, which
provides the last valid state, and “energize to trip” functions to
provide the last value.Siemens Industry Inc.www.usa.siemens.com800.879.8079