Error, fault and alarm codes of products - what each code means, its causes and what to do - read from the manufacturers’ manuals, with the manual page each answer comes from.
Message frame error: including message length error and check error The manual's first action is: “Message frame error: including message length error and check error”
Slave is busy, please try again later; mainly used for storing data into non-volatile storage The manual's first action is: “Slave is busy, please try again later; mainly used for storing data into non-volatile storage”
Command is valid and being processed, mainly used for storing data to non-volatile storage The manual's first action is: “Command is valid and being processed, mainly used for storing data to non-volatile storage”
Slave operation failed due to invalid data within valid range The manual's first action is: “Slave operation failed, including errors caused by invalid data although there are in the range”
Data error indicating data is outside acceptable upper or lower limits The manual's first action is: “Data error, i.e. data are out of upper limit or lower limit”
The system detected an illegal register address. The manual's first action is: “Illegal register address”
The system detected an illegal parameter value. The manual's first action is: “Illegal parameter”
Plo code indicates PID feedback channel abnormality or inappropriate PID parameter settings. The manual's first action is: “Check the feedback channel”
LoU code indicates abnormal input voltage or switching power supply issue. The manual's first action is: “Check input power grid voltage”
The AI input is out of its allowed range. The manual's first action is: “Set AI input within correct range”
SP2 code indicates power supply or control board issues. The manual's first action is: “Seek services”
SP1 indicates a 5V power supply issue. The manual's first action is: “Seek services”
The code 37 indicates an oCr fault due to benchmark protection or a damaged control board. The manual's first action is: “Seek services”
CPU interference fault or control board abnormality detected. The manual's first action is: “Check peripheral equipment or seek services”
Software version compatibility failure The manual's first action is: “Seek services”