model 2704 controller installation and operation handbook - Soliton

2704 Controller Analogue Operators
14.1.1. Analogue Operations
The following operations can be performed:
Off
The selected analogue operator is turned off
Add The output result is the addition of Input 1 and Input 2
Subtract The output result is the difference Input 1 and Input 2
where Input 1 > Input 2
Multiply The output result is the multiplication of Input 1 and Input 2
Divide The output result is Input 1 divided by Input 2
Absolute Difference The output result is the absolute difference between Input 1 and Input
2
Select Max The output result is the maximum of Input 1 and Input 2
Select Min The output result is the minimum of Input 1 and Input 2
Hot Swap
Input 1 appears at the output provided input 1 is ‘good’. If input 1 is
‘bad’ then input 2 value will appear at the output. An example of a
bad input occurs during a sensor break condition.
Sample and Hold Normally input 1 will be an analogue value and input B will be digital.
The output tracks input 1 when input 2 = 1 (Sample).
The output will remain at the current value when input 2 = 0 (Hold).
Input 2 can be an analogue value and must change from 0 to 100%
to provide a sample and hold at the output.
Power
The output is the value at input 1 raised to the power of the value at
input 2. I.e. input 1 input 2
Square Root The output result is the square root of Input 1. Input 2 has no effect.
Log
The output result is the logarithm (base 10) of Input 1. Input 2 has no
effect
Ln
The output result is the logarithm (base n) of Input 1. Input 2 has no
effect
Exp
The output result is the exponential of Input 1. Input 2 has no effect
10x
The output result is 10 raised to the power of Input 1 value. I.e.
10 input 1 . Input 2 has no effect
Select Logic 1 Input 1 or input 2 is switched to the output depending upon the state
of
up to
Select Logic 32
the logic input.
If logic input is true input 1 is switched through to the output.
If logic input is false input 2 is switched through to the output.
Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr-00 14-3