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Rockwell Automation Publication 1756-RM012B-EN-P - April 2018
Chapter 6
Safety Application Development
Active simulation with sources (field devices) must also be included, as it is the
only way to verify that the sensors and actuators in the system are wired
correctly. Verify the operation of programmed functions by manipulating
sensors and actuators manually.
You must also include tests to verify the reaction to wiring faults and network
communication faults.
Project validation includes tests of fault routines, and input and output
channels, to be sure that the safety system operates properly.
To perform a project validation test on the GuardLogix controller, you must
perform a full test of your application. You must toggle each sensor and
actuator that is involved in every safety function. Be sure to test all shutdown
functions, because these functions are not typically exercised during normal
operation.
Also, know that a project validation test is valid only for the specific
application tested. If the safety application is moved to another installation,
you must perform start-up and project validation on the safety application in
the context of the new sensors, actuators, wiring, networks, and control system
physical equipment.
Confirm the Project
You must print or view the project, and compare the uploaded safety I/O and
controller configurations, safety data, and safety task program logic to make
sure that the correct safety components were downloaded, tested, and retained
in the safety application program.
If your application program contains a safety Add-On Instruction that has
been sealed with an instruction signature, you must also compare the
instruction signature, date/time, and safety instruction signature to the values
you recorded when you sealed the Add-On Instruction.
See
for information about the creation and use of
safety Add-On Instructions in SIL 3 applications.
The following steps illustrate one method for confirming the project.
1. While online with the controller, and with the controller in Program
mode, save the project.
2. Answer Yes to the Upload Tag Values prompt.
3. With the Studio 5000 Logix Designer application offline, save the
project with a new name, such as Offlineprojectname.ACD, where
'projectname' is the name of your project. This file is the new tested
master project file.
4. Close the project.
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Страница 88: ...88 Rockwell Automation Publication 1756 RM012B EN P April 2018 Appendix C Reaction Times Notes...
Страница 108: ...108 Rockwell Automation Publication 1756 RM012B EN P April 2018 Glossary Notes...
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