Basler Electric DGC-2020HD - Manual (Page 231)

9469300990 Rev B 221
Name Description Symbol
Voltage Sensing
Fail True when the Voltage Sensing Fail is configured as either a
pre-alarm or alarm and the activation delay has expired.
Table 62. I/O Group, Logic Control Relays
Name Description Symbol
The logic control relays (LCR) consist of LCR outputs and LCR inputs. The output can be used to terminate the
“output” end of a logic network, and then use the corresponding input as an input to logic elsewhere in the logic
scheme. When a given LCR output is true the corresponding LCR input is true. In other words, when LCR Output
N (N being a number from 1 to 16) becomes true, then LCR Input N is true also.
If you get a “too many logic levels” error while building a logic network, LCR outputs and inputs can be used as a
solution to this problem. Place an LCR output on the end of the partial logic network and then use the
corresponding LCR input to build more logic than was previously possible.
Input 1-16 See description above.
Output 1-16 See description above.
Components
This group contains Comment Blocks, Latches, Logic Counters, Logic Gates, Logic Gates, Pickup and
Dropout Timers, Latches, Logic Counters, and Comment Blocks. Table 63 lists the names and
descriptions of the objects in the Components group.
Table 63. Components Group, Names and Descriptions
Name Description Symbol
Comment Blocks
Comment
Block The logic comment block is used to place notes on the logic.
Counters
Counters A logic counter produces a true Alarm output when the elapsed
count is greater than or equal to the Trigger Count setting after a
false to true transition occurs on the Count Up input from the
connected logic. A positive going edge on the Reset input will reset
the counter. The count will be reduced by 1 each time a false to
true transition occurs on the Count Down input. Double-click or
right-click on the logic counter to select from counters 1 through 8.
Latches
Reset Priority
Latch The latch is set when the Set input is true and the Reset input is
false. The latch is cleared when the Reset input is true.
DGC-2020HD BESTlogic
™Plus