Wiring with the display system
262
1SVC 440 795 M1100
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 the function blocks C 01 and T 01 are wired.
Figure: 142: Hardwiring with relays
h
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.
L01–
P1
P1
K1T
K1T
C
R
H1
S1
S2
L01+
2s
Counter
Value 10
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