Rievtech ELC Series - Page 89

EN
Programmable Relay ● User Manual for ELC, EXM and PR Series 89 2020 v6.0 ● © Rievtech Co.,
Ltd. ● www.rievtech.com
The output is 1 if the input is 0. The NOT block inverts the
input status.
The advantage of the NOT, for example, xLogic no longer
requires break contacts. You simply use a make contact
and convert it into a break contact with the help of the
NOT function.
Table 17 NOT Function Logic
Input1
Output
0
1
0
0
Boolean Function
Description of function
The BOOLEAN function gives the value of the output
according to the combination of inputs.
The function has four inputs, and therefore 16
combinations. These combinations can be found in a truth
table; for each of these, the output value can be adjusted.
The number of configurable combinations depends on the
number of inputs connected to the function.
Non-connected inputs are set to 0.
The following diagram shows an example of part of the
Boolean function truth table:
Table 18 Boolean Function Logic (Example of Output
states)
Index
Input1
Input2
Input 3
Input 4
Output
1
0
0
0
0
1
2
0
0
0
1
1
3
0
0
1
0
1
4
0
0
1
1
0
5
0
1
0
0
1
6
0
1
0
1
1
7
0
1
1
0
1
8
0
1
1
1
1
9
1
0
0
0
1
10
1
0
0
1
0
11
1
0
1
0
0
12
1
0
1
1
0
13
1
1
0
0
0
14
1
1
0
1
1
15
1
1
1
0
0
16
1
1
1
1
0
Parameters
Having connected at least one input, you can configure
the value of the output in the truth table, in the
Parameters window.
The output values can be 0 for the Inactive state, and 1
for the Active state (Double click to change the 0 or 1).
By selecting the Output ON if the result is TRUE, the
output takes the value configured in the truth table.
By selecting the Output OFF if the result is TRUE, the
output takes the inverse value of the value configured in
the truth table.
6.1.3. Basics of Special Functions - SF
Because of their different input designation, you can see
right away that there is a difference between the special
functions (SF) and basic functions. SF’s contain timer
functions, retentive functions and various parameter
assignment options, which allow you to adapt the circuit
program to suit your own requirements.