Circuit arrangement for automatically monitoring several analog

Details Circuit arrangement for automatically monitoring several analog Circuit arrangement for automatically monitoring several analog

1986-11-21

1989-12-26

Yusko, Donald J.

Communications: electrical

Condition responsive indicating system

Specific condition

34087013, 34087016, 341141, G08B 2100

Patent

active

048900958

ABSTRACT:
A circuit arrangement is described for automatically monitoring several analog electric signals and for maintaining predetermined ranges of tolerances by successive comparison with reference values. Error alarm signals are produced and stored, dependent upon the comparison and timed (synchronized) simultaneously with the connection of the respective signals to be monitored to a comparator (20). Access is provided to a reference value storage (30) from which reference signals assigned to each single signal and ranges of tolerances defining reference values are timed and led to the comparator (20). The respective outlet (output) signal of the comparator (20) for producing similar error alarm signals to be stored is logically linked with an evaluating signals (ZB 0) indicating which of the two reference values lies at any time on the comparator (20).

REFERENCES:
patent: 4454500 (1984-06-01), Kato et al.

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