ABB DP840 3BSE028926R1 Pulse counter S/R 8 channels

Description

Product number: 3BSE028926R1
ABB model name: DP840
Catalog Description: DP840 Pulse counter S/R 8 channels
– Description: Pulse counter or frequency measurement module. Redundant or unitary.
0.5 Hz-20 KHZ.
Use module terminal units TU810, TU812, TU814, TU818, TU830, TU833, TU842, TU843, TU844, TU845, TU852, TU854
Tariff number: 90308400
Net weight: 0.3kg

There are many kinds of DP840 3BSE028926R1 counters.

It can be divided into synchronous counter and asynchronous counter according to whether each trigger in the counter uses a clock pulse source.

The realization is to lead the counting pulse to the CP end of all flip-flops,

so that flip-flops can be flipped simultaneously; For synchronous counter, because DP840 3BSE028926R1 clock pulse acts on each flip-flop simultaneously,

the flip-flop step delay problem encountered by asynchronous flip-flop is overcome.

Thus greatly improve the counter working frequency, all levels of flip-flop output difference is small,

decoding can avoid peak; However, if the synchronization counter series is increased,

the load of the counting pulse will be increased.

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