ABB CL Series, Руководство по применению

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Function blocks
201
1SVC 440 795 M1100
8: Reset coil CI…RE
9: Contact (N/O) CI…OF upper setpoint value reached, exceeded
10: Contact (N/O) CI…FB lower setpoint value reached, undershot
11: Contact (N/O contact) CI…ZE actual value equal to zero
12: Contact (N/O contact) CI…CY value range exceeded or undershot
• Range A:
– The counter counts upwards.
– The value leaves the lower threshold value and reaches the
upper value.
• Range B:
– The count direction changes to a downward count.
– The contacts will switch according to the actual value.
• Range C:
– The enable signal is set to 0. The actual value becomes 0.
• Range D:
– The rising edge on the accept preset value coil sets the actual
value to the preset value.
• Range E:
– The reset pulse sets the actual value to zero.
• Range F:
– The actual value goes outside the value range of the counter.
– The contacts become active according to the direction of the
values (positive or negative).
Comparators
Comparator function blocks allow you to compare constants
and variables with one another.
The following comparisons are possible:
Figure: 107: Display system circuit diagram with comparator
Function block input Function block input
>I1
Greater than
>I2
Equal to
Less than
CP32LT-------------------------S Q 01
CP32EQ-------------------------S Q 02
CP32GT------------------------uR Q 01
hR Q 02