Load Controller software v 1.0 code notes
P. McGill

Notes on specific commands:
LD - Works as expected most of the time. If load is switched on, then bus power is removed, load pwr comes back on as soon as bus power is reapplied. Iso power, which was on before bus power was cycled, does not come back on. Do clear this condition, you must issue an LD1 followed by LD0.

CR - Works as expected, note comms relay layout error

SE - Not yet implemented

CE - Not yet tested

?BV - Reads 19.95 volt for 20.01 volt input, 0.3% low
      Reads 25.00 volt for 27.95 volt input, 10.6% low
      Reads 25.00 volt for 30.01 volt input, 16.7% low
Voltage reading seems to be saturating. Need to change R18 from 51.0 k to 90.9k to increase attenuation factor from 6:1 to 10:1.
      
     
?LV - Reads 11.76 volt for 12.04 volt output, 2.3% low
Need to change R8 from 20.0 k to 40.2k to increase attenuation factor from 3:1 to 5:1, since 3:1 reads only 3 * 4.096 = 12.288 V max.

?BC - Reads 0.020 amp for 0.021 amp input, 5% low
      Reads 0.069 amp for 0.131 amp input, 47% low
      Reads 0.069 amp for 0.189 amp input, 63% low
Current sensor seems to be saturating at 0.069 amp.

?LC - Reads 0.032 amp for 0.000 amp load
      Reads 0.172 amp for 0.137 amp load
Seems to have large zero offset

?FC - Not working. All channels read voltage, not fault current, as noted by Brian. However, the voltages displayed don't change with varying fault currents.

?SO - Seems to work, but see note for SO

?SS - Not tested, see note for SO

?TP - Not tested, see note for SO

?CR - Works as expected

?SN - Works as expected, but perhaps should be DA for device address, as this is not a serial number. There should also be a serial number set and read command. All LCs should respond to address 00, as well as their set addresses, but they currently only respond to their set addresses.

?VR - Works as expected, although only 1.0 is shown instead of 1.0.0

SO - Seems to work, but issuing this command and then cycling power corrupted the device's address. Need to check all the commands that write to EEPROM.

SS - Not tested, see note for SO

TP - Not tested, see note for SO

SN - Works as expected, but see note for ?SN