JPH02138349U

JPH02138349U -

Info

Publication number: JPH02138349U
Application number: JP4554589U
Authority: JP
Priority date: 1989-04-18
Filing date: 1989-04-18
Publication date: 1990-11-19

Description

[Brief explanation of the drawing]

第１図は本考案を実施した接点信号出力装置の
構成ブロツク図、第２図は本考案装置の演算処理
部で生成するデータ形式を表わす図、第３図ａ，
ｂは本考案装置の動作を表わすタイムチヤート、
第４図ａ，ｂは本考案装置の動作をデータ形式に
よつて説明するための図、第５図は従来の接点信
号出力装置の構成ブロツク図、第６図は従来装置
の出力データを変更する場合の書き換えフローチ
ヤートである。１……演算処理部、２……ラツチ回路、３……
出力回路、４……バツフア、５……アドレス・デ
コーダ、６……ゲート手段、ａ１，ａ２……アン
ド回路、ｏｒ……オア回路、ｉｎ……インバータ
。 Fig. 1 is a block diagram of the configuration of a contact signal output device embodying the present invention, Fig. 2 is a diagram showing the data format generated by the arithmetic processing section of the device of the present invention, and Fig. 3 a,
b is a time chart showing the operation of the device of the present invention;
Figures 4a and b are diagrams for explaining the operation of the device of the present invention using data formats, Figure 5 is a block diagram of the configuration of a conventional contact signal output device, and Figure 6 is a diagram showing changes in the output data of the conventional device. This is a rewriting flowchart when 1... Arithmetic processing unit, 2... Latch circuit, 3...
Output circuit, 4... Buffer, 5... Address decoder, 6... Gate means, a1, a2... AND circuit, or... OR circuit, in... Inverter.

Claims

[Scope of utility model registration request]

In a contact signal output device that sends contact output data outputted from an arithmetic processing unit to the outside from an output circuit, the arithmetic processing unit generates mask data for validating or invalidating the contact output data,
a first gate means that outputs the contact output data when the mask data is valid; a second gate means that continues to output the current output data when the mask data is invalid; A contact signal output device comprising a latch circuit that latches the current output data from the second gate means and supplies it to the output circuit.