At the end, I solved the issue, and this may help others. Thus this forum. This unit uses the PLC DirectLogic DL06.
First: to perform any PLC reset, you need the DL06 coder interface. Or else, you are dead in the water.
Second: their "plank or final limit switch/or low oil pressure safety" need attention as I had expected, their final limit switch is a self resetting unit, (one of my main concerns as sometimes manufacturers use manual reset switches rather then self resetting switches.........thank goodness they use a self resetting final limit switch). thus your main concern is to drive up the unit so that safety is released.
To do this: from the main coil box that is on the pump unit............jump out the "low oil sensor"........easily done by just making sure the inputs via this circuit is in continuity. The labels are well described inside that coil box.
Second: you must find on the main controller: a 24 volt DC supply line, which is in the lower right corner of the controller unit.
Third: you are best to disconnect the PLC output line to the "slow speed uprise coil" , and when you are pushing the pump contactors , then you give your 24v DC power to that slow speed up coil........and because you had jumped out the low oil presure switch, your unit gets pressure and is lifted off the "down final limit switch", which is self re-setting.
Do all of this while having controller board in "temp" setting, and PLC switch in either "stop or temp" setting.
That way, when you do the final PLC reset, all is in proper sequence for doing this reset.
Very important: after doing a PLC reset and setting the PLC in "run" positon". You must put in a call from a higher floor above. A simple "up" call. If you do a lowest level call...........the unit will just bottom out.......guess their programming issue. So put in an UP call after PLC reset.
I hope this may help someone that is dealing with this type of unit. I tend to think they keep this "in house", as the sequence is very important for this model to make sure the PLC inputs are all completed in correct order so that whatever coding they instructed their PLC to perform in programming reset are satisfied. The UP call sequence is important after the PLC reset.
Cheers
Vince