For the Rover60A, most parameters cannot be modified under the preset modes for lead-acid batteries (FLD/SLD/GEL). These parameters can only be adjusted when the battery type is set to "USER."

In fact, the charging logic we designed is a fixed, automatic closed-loop system that is suitable for most mainstream batteries. Therefore, we did not provide any operational method to forcibly change the charging stage. However, you have indeed found a programmatic "backdoor." Based on the settings you provided, it is theoretically possible to exit FLOAT mode and enter MPPT or BULK mode from a software logic perspective. Since this is an unconventional configuration, we have not specifically tested it, but you can try it out. We will also arrange testing to confirm this in the future.

I have analyzed the code and conducted a simulation test based on the control steps you provided. So far, the evaluation suggests that it should meet your expectations. I’m sharing the communication process from my test with you for reference.

There are two points to note:
    If the inverter load (i.e., 0120H) has not been set before, the response should be: Float – 05H, Absorption – 04H, MPPT Charging – 02H.
    I preset the absorption time to 20 minutes to speed up the testing process.