Omron NX-SID Series User Manual page 296

8 Checking Operation and Actual Operation
*1. Hardware Self-diagnosis
In the initializing state, self-diagnosis is performed for all hardware.
Self-diagnosis for hardware is not performed in the Critical Fault state.
In other operating modes, hardware self-diagnosis is performed at fixed intervals.
*2. Message Communications
Message communications are enabled 0.5 seconds after the power is turned ON.
*3. NX Bus Communications
NX bus communications is enabled 0.5 seconds after the power is turned ON. However, the data that is
refreshed depends on the operating mode, as shown in the following table.
Operating mode
Initializing
PROGRAM mode
RUN mode
DEBUG
mode
Critical Fault state
*4. The safety connections are established, but the output data for communications is fixed to 0. The input data
is raw data.
*5. You can download safety-validated safety application data with Sysmac Studio version 1.10 or higher and
NX-SL version 1.1 or later.
*6. You can execute the Clear All Memory operation for the Slave Terminal regardless of the operating status of
the Safety CPU Unit, but it will always fail for the Safety CPU Unit.
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Refreshing
The input data is discarded. The output data is fixed to 0.
The input data is discarded. The output data that carries status information
is transferred. All data outputs from the safety programs change to 0.
I/O data refreshing is performed with the safety programs.
Input data refreshing is performed in the safety programs.
STOPPED
The output data that carries status information is transferred. All data out-
puts from the safety programs change to 0.
RUN I/O data refreshing is performed with the safety programs.
NX bus communications cannot be executed.
NX-series Safety Control Unit User's Manual (Z930)