6. Function blocks
6.2 Interrupt function blocks
Operands Bit inputs
Constant 0, constant 1 x
M – Markers x
RN - Input bit via NET x
SN - Output bit via NET (send) x
N - Net marker bit x
nN - NET marker bit NET station n x
ID: Diagnostic alarm x
LE - Output backlight x
P buttons x
I - Bit input x
Q - Bit output x
Q - Bit output of a FB x
Operating modes
Description Note
Rising edge Rising edge: Runs the interrupt program once after
delay TD.
Falling edge Falling edge: Runs the interrupt program once after
delay TD.
Both edges Rising edge and falling edge at input: Runs the
interrupt program after delay TD each time.
Function block outputs
Description Note
(Bit)
Q1 Bit output used to provide operand states from the
interrupt program to the main program.
Q2
Q3
Q4
(DWord)
QV Actual elapsed delay (TD) time
Assigning operands
You can assign the following operands to the function block outputs that are numeric
outputs:
Assigning operands Outputs
Constant x
Markers: MB, MD, MW x
Analog inputs IA x
Analog output QA x
Numeric output from another QV FB x
You can assign the following operands to the function block outputs that are bit outputs:
easyE4 11/18 MN050009 EN www.eaton.com
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