Because of the lower price point of PWM controllers they are often less configurable than MPPT controllers. Still, PWM controllers with configurable setpoints do exist.
The TriStar TS-45, and TS-60 PWM professional grade controllers are configurable with a cable.
Note that the MPPT variants are also called TriStar but the model numbers are TS-MPPT-45, TS-MPPT-60, and there is also a 30A TS-MPPT-30 unit for which there is no PWM counterpart.
The Duo (two battery) line is configurable with MSView.
The Victron PWM-pro is fully programmable by USB adapter and free software.
EPsolar's Landstar B series is configurable with an MT-50 display. The B series comes in 10A, 20A, and 30A models.
It is rebranded as the MISOL B series at parity or slight markup.
It is also rebranded as the Victron BlueSolar PWM-Pro 10A, 20A, and 30A at 2x the price. The MT-50 is rebranded as the Victron Remote Panel for BlueSolar PWM-Pro almost 3x the price.
The Viewstar BN series is configurable from the controller or from MT-50. It is available in 10A, 20A, 30A, 45A, and 60A models.
It is rebranded as the Renogy Viewstar in 20A and 30A models at 2x the price.