XOR
A normally open contact and normally closed contact connected in series, connected in parallel to a normally closed contact
and normally open contact that are connected in series. For the output of the normally open coil to be TRUE, either B0 or B1
must be TRUE, but not at the same time.
Figure 9.11
XOR ladder logic diagram
Table 9.12
XOR logic truth table
B0
B1
B2
FALSE
FALSE
FALSE
FALSE
TRUE
TRUE
TRUE
FALSE
TRUE
TRUE
TRUE
FALSE
9.5.2 Example 1: External light activates when system is in AUTO
Introduction
In this example CustomLogic is configured to activate an external light when the controller is in AUTO. The light activation
relay is connected to a relay on the controller.
Configure the output
1. Go to
Configure > Input/output
.
2. Configure a digital output function for the light activation switch. (
Functions > CustomLogic > Outputs > CustomLogic
digital output
)
a. After configuration
CustomLogic digital output
changes to
Terminal(s) x, y, z, Slot #
, where x, y, z, and # represent
the terminal and hardware slot.
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