Instruction manual

Digital Latches
890USE18300 September 2003 153
Latch Trigger
Input
The latch trigger may be a Boolean 1 or 0. When it rises from 0 to 1, the value of the
operational input is latched. If the output is standard, the value of the operational
input becomes the output of the action; if the output is inverted, the inverted value of
the operational input becomes the output of the action.
The latch trigger value may be produced by:
a constant
a digital input from a module on the island
a digital output from the virtual module
an output on the action module written to by the fieldbus master
if the latch is the second block in a nested reflex action (See Nesting Two Reflex
Blocks, p. 36), the latch trigger input may be the output from the first reflex block