The following table lists the RUN LED indicators.

Table 2. RUN LED Indicators
LED Color LED Pattern Indication
Green Off The NI-9145 is in initialize (INIT) run mode. The NI-9145 is initializing and discovering slaves.
Continuously blinks The NI-9145 is in pre-operational (PRE-OP) run mode. The NI-9145 is detecting modules, configuring, and synchronizing.
Blinks once and pauses The NI-9145 is in safe-operational (SAFE-OP) run mode. The NI-9145 inputs are functional and outputs drive constant safe values.
Solid The NI-9145 is in operational run mode. The NI-9145 inputs and outputs are functional.
Flickering The NI-9145 is in bootstrap run mode. The NI-9145 is updating firmware.

Run Mode Transition

The following figure shows the Run Mode transition.
Figure 1. EtherCAT Modes