Pump Changover Module PC1b
22^nd October                  Software release notes

1. Add third relay energises if both pumps have been tried and no 'flow confirmation' signal has been received.
2. Add Sensor 1 & 2 Hours run for each pump, cumulative values is updated at 01:00 each day to non volatile memory. Hours run resets at 9999 hours.
3. Add Plots 1 & 2, once per day reading of hours run, displayed as 15 minute increments.
4. Add switch 3 & 4 , set to ON resets hours run on appropriate pump. Automatically reset to OFF.
5. Add config variable FMDE failure mode which controls the relay action when both pumps have failed to produce a 'flow confirmation' signal.
   • 1 Both pumps stay enabled, unlikely that both have failed, possible cavitation problems.
   • 2 Last selected pump stays on
   • 3 Both pumps switch off

6. Add Override pressed cancels failure mode, this is needed because if FMDE is set to 3, when flow switch is repaired pumps will not restart automatically since both are off and therefore there is no flow.
   1. Inputs, Switches, Sensors & Knobs made available as config style communication request.