ABB CL Series, Руководство по применению

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Wiring with the display system
180
1SVC 440 795 M1100
NOT Boolean operation
The NOT operation operates as follows:
>I1
, positive value
Negate value of
>I1
and subtract 1:
–|
>I1
| – 1 =
>I2
>I1
, negative value
Negate value of
>I1
and subtract 1:
–|
>I1
| – 1 =
>I2
Counter
The display system provides 32 up/down counters C 01 to
C 32 for use. The counter relays allow you to count events.
You can enter upper and lower threshold values as
comparison values. The contacts will switch according to the
actual value. To specify a start value, for example, counting
from the value 1200, this can be implemented using a “C ..”
counter.
The “C..” counters are cycle time dependent.
Wiring of a counter
You integrate a counter into your circuit in the form of a
contact and coil. The counter relay has different coils and
contacts.
Value
>I1:
13219
dec
= 00000000000000000011001110100011
bin
Value
>I2:
Omitted
Result QV>: –13220
dec
= 11111111111111111100110001011100
bin
h
To prevent unpredictable switching states, use each coil of
a relay once only in the circuit diagram.