HSCL902E

Explanation
The On/Off CoD memory activation request cannot be accepted because 
Trial CoD memory is currently activated. Either wait until the current Trial 
CoD activation period expires, or stop the current trial. Then retry the On/Off 
CoD memory activation request. 

Problem determination
Wait until the current Trial CoD activation period expires, or stop the 
current trial. 

Retry the operation. 