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Data no retained on PLC when should


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Hello everyone 

I have a problem with a program, the situation is the next,

When there is a sudden power outage my plc shuts down but when it is reset it does not retain the setpoint values that were previously loaded.



I have already checked if the values are retained and indeed if they are retained



Cold you give some advice or tell me what can I do to solve this issue? 

the cpu is USP-070-B10/B  and the software is the next. 


Thanks in advance. 




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  • MVP 2023

Is it  CPU-for-Panel present?

Panel cannot operate independently. CPU-for-Panel must be plugged
into the back of a UniStream® HMI panel. The panel provides the CPU’s
power source. The CPU-for-Panel comprises:
1 IO/COM Bus connector for interfacing Uni-I/O™ & Uni-COM™ modules
2 Isolated RS485 and CANbus ports
3 Backup battery

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  • NoamM changed the title to Data no retained on PLC when should

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