Download 3500 Process Controller HA027988_15_3500

3500 Series Controllers
4.1.3
User Manual
To Change the Value of a Parameter
Press ▲ or ▼ to raise or lower the value of an analogue (numeric) parameter or to change the
selection of enumerated parameter options.
Any parameter preceded by v is alterable provided the system is in a safe state to allow the
parameter to be changed. For example, ‘Program Number’ cannot be changed if the program is
running - it must be in ‘Reset’ mode. If an attempt is made to alter the parameter its value is
momentarily replaced by ‘- - - ‘ and no value is entered.
4.1.3.1
Analogue Parameters
When the raise or lower button is first depressed there is a single increment or decrement of the least
significant digit. Either button can be held down to give a repeating action at an accelerating rate.
4.1.3.2
Enumerated Parameters
Each press of the raise or lower button changes the state of the parameter. Either button can be held
down to give a repeating action but not at an accelerating rate. Enumerated parameters are allowed
to wrap around.
4.1.3.3
4.1.3.4
Time Parameters
Time parameters start with a resolution of 0.1 second
to 59:59.9
mm:ss.s
0:00.0
When 59:59.9 is reached the resolution becomes 1 second
to 99:59:59
hh:mm:ss
1:00:00
When this limit is reached the resolution becomes 1 minute
to 500:00
hhh:mm
100:00
Boolean Parameters
These are similar to enumerated parameters but there are only two states. Pressing either the raise or
lower button causes the parameter to toggle between states.
4.1.3.5
Digital Representation Characters
Parameters whose values are used digitally (i.e. bitfields) are represented by:
- On State or
- Off State
A parameter may be represented by using any number of bits between 1 and 16 inclusive. Scrolling
on to the parameter selects the leftmost bit, and subsequent scroll operations move the selected bit
right by one. Backscroll may be used to move the selected bit towards the left. Raise and lower
buttons are used to turn the selected bit on or off respectively.
Part No HA027988
Issue 15
Jun-13
59