A voltage monitoring system having a microcontroller with first and second monitoring applications and a hardware abstraction layer is provided. The hardware abstraction layer sends a second encoded channel number and a first measured voltage value to the first monitoring application. The first monitoring application sends the second encoded channel number to the second monitoring application. The hardware abstraction layer sends a fourth encoded channel number and a second measured voltage value to the second monitoring application. The second monitoring application stores the second measured voltage value in the memory device if the fourth encoded channel number is equal to a first expected encoded channel number, and the second encoded channel number is equal to a second expected encoded channel number.