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Programming wiring
MN05013005E
272
Memory requirement of the value limitation function
block
The value limitation function block requires 40 bytes of
memory plus 4 bytes per constant on the function block input.
Function of the value limitation function block
The value is accepted at input VC...I1 if the enable coil is
active. If the value is greater than the upper limit value or less
than the lower limit value, the respective limit value is output
at VC..QV.
Example with timing relay and counter function block
A warning light flashes when the counter reaches 10. In the
example, both function blocks C 01 and T 01 are wired.
Figure 144: Hardwiring with relays
J
The function block must be enabled so that it can work. Coil
VC..EN is active. If coil VC..EN is not active, the entire
function block is deactivated and reset. The output value is
set to zero.
