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3 safety requirements checklist – Rockwell Automation T8094 8000 Series TMR System Safety Manual User Manual

Page 76

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SAFETY MANUAL

D oc N umber T8094
I ssue 27 – June 2013

Page 55 of 103

4.1.3 Safety Requirements Checklist

Description

Reference

Have all of the functional requirements

been allocated a required safety

requirements class?

2.2.1.3

Has the safety-related timing for each

safety-related function, including process

safety time (PST) and fault tolerance period,

been established?

2.2.1.3

Have the safety requirements been

approved?

2.2.1.3

Are there clear definitions of the external

interfaces involved in each of the

safety-related functions? (These may

already be defined in the functional

requirements).

2.2.1.3

Is there now sufficient information to

understand how the plant should be

controlled safely in each of its intended

operating modes?