Siemens SENTRON PAC4200 Manual page 108

Limit logic
Logical truth value resulting from the combination of up to 12 limit values "LIM0" to "LIM11",
taking account of the logical priority rules and allowing logical brackets.
Symbol Description
OR
OR logic operation:
•
•
NOR
NOT OR logic operation:
•
•
XOR
EXCLUSIVE OR logic operation:
The output value is only true if an odd number of inputs is true and all other inputs are false.
The XOR logic is easy to understand if there are only two inputs. The output is true if the two inputs
are not simultaneously true or false.
XNOR
EXCLUSIVE NOT OR logic operation:
The output value is only true if an even number of inputs is true and all other inputs are false.
The XOR logic is easy to understand if there are only two inputs. The output is true if the two inputs
are simultaneously true or false.
Status indicator
The value present at the input or the value to be output at the output is "true".
Status indicator
The value present at the input or the value to be output at the output is "false".
PAC4200
System Manual, 05/2019, A5E02316180B-05
The output value is true if any one of the input values or several input values are true.
The output value is only false if all input values are false.
The output value is only true if all input values are false.
The output value is false if any one of the input values or several input values are true.
7.2 Parameterizing via the user interface
Parameterizing
107