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7 Programming
NX-series Safety Control Unit User’s Manual (Z930)
7-7 Offline Debugging
7
7-7-6 Simple Automatic Test
A setting example for the Simple Automatic Test is provided in this section for the application example
given in A-3-2 Safety Doors on page A-22.
Application Overview from A-3-2 Safety Doors on page A-22.
M1 stops when safety door 1 (S5, S6) is opened.
M2 stops when safety door 2 (S5, S6) is opened.
Both M1 and M2 stop when the emergency stop pushbutton S1 is pressed.
The settings for the Simple Automatic Test are derived from the following points.
• Variable that is assigned to the reset switch
• Variables that are assigned to safety input devices (except for EDM feedback)
• Variables that are assigned to safety output devices
• To make the program work correctly, set the initial values for simulation so that Activate terminal on
the safety function block will be to TRUE.
• To make the SF_EDM function block work correctly, set feedback for simulation.
The settings for the above application are shown in the setting areas for the Simple Automatic Test.
• Setting Areas for a Simple Automatic Test
Setting Example
Safety category/PL Safety device Stop category Reset
Equivalent to 4/PLe
(Safety Door)
Safety limit switches 1 and 2 0 Auto
Emergency stop pushbutton switch 0 Manual
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