Using Et 200S Fail-Safe Modules - Siemens SIMATIC ET 200S Installation And Operating Manual

Product Overview

1.3 Using ET 200S Fail-Safe Modules

Fail-Safe Modules
The major difference between fail-safe modules and standard ET 200S modules is that fail-
safe modules have a two-channel internal design. Both integrated processors monitor each
other, automatically test the input and output wiring, and place the F-module in a safe state
in the event of a fault. The F-CPU communicates with the fail-safe module using the
PROFIsafe safety-related bus profile.
Fail-safe power modules supply load voltage to the potential group and safely shut down the
load voltage for output modules.
Fail-safe digital input modules record the signal states of safety-related sensors and send
corresponding safety message frames to the F-CPU.
Fail-safe digital output module are suitable for shutdown procedures with short-circuit and
cross-circuit protection up to the actuator.
1.3 Using ET 200S Fail-Safe Modules
1.3
Possible Uses of ET 200S with Fail-Safe Modules
The use of ET 200S with fail-safe modules enables conventional safety engineering designs
to be replaced with PROFIBUS DP/PROFINET IO components. This includes replacement
of switching devices for emergency stop, protective door monitors, two-hand operation, etc.
Use in F-systems
Fail-safe ET 200S modules can be used:
• In the S7 Distributed Safety F-system with
• In S7 F/FH Systems with the
• To connect ET 200S fail-safe modules to PROFINET IO modules with Distributed Safety,
When using fail-safe ET 200S I/O modules in F-systems, the information in the following
manuals applies:
•
•
•
1-2
higher
you need:
– ET 200S fail-safe modules as of the order numbers specified in "Preface"
– CPU 315F-2 PN/DP or CPU 317F-2 PN/DP
STEP 7
V5.3 SP 3 or higher
–
– IM 151-3 PN HIGH FEATURE interface module
S7 Distributed Safety
–
ET 200S distributed I/O system
Safety Engineering in SIMATIC S7
S7 Distributed Safety, Configuration and Programming
S7 F/FH Systems
S7 Distributed Safety
S7 F Systems
optional package as of version V5.2 SP 2
F Configuration Pack
V5.4 or higher (
Hardware Installation and Operating Manual, 07/2005, A5E00103686-04
optional package V5.4 or
V5.4 or higher)
Programmable Controllers
or
ET 200S Distributed I/O System - Fail-Safe Modules