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Indicator Description

PWR power indicator (Green) Meaning
On Normal system power supply
Off Abnormal system power supply
SYS system status light (Green) Meaning
Off The system is running normally
On Failed to allocate module address
Flash (5Hz) Module parameter configuration failed
Flashing (1Hz) Module data interaction failed
Slow flash (0.33Hz) Module not recognized
RUN bus operation indicator (Green) Meaning
On Running status
Flash (10Hz) Startup state or BoSRTrap state
Slow flash (2.5Hz) Pre-operation state
Off Initialization status
ERROR bus fault indicator (Red) Meaning
On Application control failed
Flash (10Hz) Startup error
Slow Flash (2.5Hz) Invalid module configuration
Off Normal operation
BUS backplane bus indicator (Yellow) Meaning
Flash after power-on Scan IO terminal (flashing times = number of modules)
Slow flashing during operation Normal operation (flashing frequency is related to the number of modules)
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Last modified: 2025-06-30