Product overview
2.2 Functions
ET 200SP F-TM Count 1x1Vpp sin/cos HF (6ES7136-6CB00-0CA0)
14 Equipment Manual, V1.0, 01/2021, A5E47073911-AA
Accessories
You can use the following accessories with the F-module; however, the accessories are not
included in the product package:
• Labeling strips
• Color identification labels
• Reference identification labels
• Shield connector (article number 6ES7193-6SC00-1AM0)
• Cable (article number 6FX8008-1BD31-XXXX) sold by the meter or equivalent
Article numbers are provided for those items unique to the F-TM Count module. Additional
information about accessories can be found in the ET 200SP Distributed I/O System system
manual (http://support.automation.siemens.com/WW/view/en/58649293).
2.2 Functions
2.2.1 Safety
What are fail-safe automation systems?
Safety-related systems are primarily concerned with applications whose failure could have
impact upon the safety of people and/or the environment. As a result, safety-related systems
are used to mitigate hazards or failures that are likely to cause physical harm. Their intent is
to achieve safety to an acceptable level of tolerable risk.
F-systems serve to control processes and ensure safe states upon detected failures. Failures
are detected using very high levels of diagnostic coverage. Upon detection of failures, actions
are taken to attempt to bring the respective application to a safe state.
F-systems provide improved fault detection and fault localization through detailed diagnostic
identification and reporting. This is the primary difference between fail-safe systems and
standard systems. Use of fail-safe systems should be considered for applications in which
hazards are inherently present and may result in physical harm.
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