Increment n rollover. Only the increment button has an effect. Each time the button is pressed the value of the datapoint is increased by the value of IncVal. After PhyMax is reached the next button press causes the datapoint to be set to PhyMin.
Decrement n rollover. Only the decrement button has an effect. Each time the button is pressed the value of the datapoint is decreased by the value of IncVal. After PhyMin is reached the next button press causes the datapoint to be set to PhyMax.
Increment/Decrement n rollover. Both buttons have an effect.
Increment/Decrement w/endpoints. Both buttons have an effect.
Momentary type 1. Both buttons have an effect. When a button is pressed or released the datapoint is set to a new value. The values come from the PhyMin, PhyMax and IncVal fields.
The database is updated in this way:
Decrement Button pressed
Momentary type 2. Both buttons have an effect. When a button is pressed or released the datapoint is set to a new value. The values come from the PhyMin, PhyMax and IncVal fields.
This type is for handling the case where there are two contacts, one normally open and one normally closed. In this situation the normally closed contact is usually opened momentarily to shut something off and the normally open contact is closed momentarily (while the nc contact is closed) to turn something on. This closely parallels a hardware system with start and stop buttons operating a relay with a holding contact. Usually when this type is used the binary value of the datapoint (in the DataRec) is initialized to the value of IncVal.
The database is updated in this way:
Button release
Momentary type 3. Both buttons have an effect. When a button is pressed or released the datapoint is set to a new value. The values come from the PhyMin, PhyMax and IncVal fields.
This type is for handling the case where there are two contacts, both normally open and one contact must be closed to increase and another or possibly both must be closed to decrease. This occurs in NEC’s external foil stripper controller where we have nop/chg inc/dec.
The database is updated in this way:
Increment Button pressed
Random Set Keypad/Buttons. The parameter may be varied by using the mouse or by entering a new value from the keypad.
Random Set keypad only. The parameter may be varied only by entering a new value from the keypad. The parameter may be assigned to the touch screen, however, the inc/dec buttons won’t work.
Random Set buttons only. The parameter may be varied by using the mouse (or the touch screen) only.