8 When you use the DEBUG mode for the first time, or when the safety password is not speci-
fied, leave the Password field blank and click the OK
Button.
When a safety password is specified, enter the security password and click the OK Button.
Refer to 7-9 Security Settings on page 7 - 51 for the procedure to set a safety password.
Unvalidated safety programs are transferred from the Sysmac Studio to the main memory of
the Safety CPU Unit, and the Safety CPU Unit enters DEBUG (STOPPED) mode.
Precautions for Correct Use
Before the safety validation is executed, the safety programs are stored in the main memory of
the Safety CPU Unit. When the Sysmac Studio goes offline or when you power of
f Safety CPU
Unit, the safety programs are deleted. Because of this, after you cycle the power supply, you
must use the Sysmac Studio to change to DEBUG mode again and transfer the safety pro-
grams to the main memory again.
Changing to PROGRAM Mode
If you need to change the safety program, you must change to PROGRAM mode.
Use the following procedure to change the Safety CPU Unit from DEBUG mode to PROGRAM mode.
With the Safety CPU Unit in DEBUG mode, perform one of the following operations.
•
Select Controller - Operating Mode - PROGRAM Mode.
• Press the Ctrl + 1 Keys.
• Click the PROGRAM Mode Button on the toolbar.
The Safety CPU Unit enters PROGRAM mode.
7 Checking Operation and Actual Operation
7 - 19
NX-series Safety Control Unit User's Manual (Z930)
7-4 Changing to DEBUG Mode
7
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