S5-95F
Rules for Failsafe Operation of an S5-95F
18.1.3 Acceptance Test
Before the inspector carries out the acceptance test, you should have tested your failsafe system at
least once in failsafe mode with an EPROM submodule.
The following must be made available to the inspector:
•
Programmer with STEP 5 basic software package, COM 95F and KOMDOK (KOMDOK is
required only when the version of the STEP 5 basic software package is older than 6.0).
•
Printer
•
At least three EPROM modules of a type approved for failsafe systems
•
A UV eraser
•
Labels to mark the EPROM submodules
Comparison between Pre-Approved and Implemented Hardware
In order to carry out a hardware comparison, the inspector needs the configuring list, a printout of
the configuring data generated with COM 95F, and the component mounting diagrams.
When checking the hardware, the inspector pays particular attention to
•
Module conformity (including version)
•
The use of failsafe modules for failsafe signals
•
I/O wiring
•
Links to other devices
Should the comparison show considerable changes, the inspector might well require a new pre-
acceptance test.
Comparison between Pre-Approved and Implemented Software
For the software comparison, the inspector requires the current user program, on a data carrier and
as KOMDOK listing.
The inspector compares the pre-approved user program with the program actually installed. A
comparison with the COM 95F software comparator (see the COM 95F Manual) is recommended.
Should the comparison show considerable differences, the inspector might require another pre-
acceptance test.
Error Simulation
Errors should be simulated on the system and on site for all safety-related functions on the basis of
the checklist used for the pre-acceptance inspection.
EWA 4NEB 812 6210-02
18-5
