发明名称 |
Programmable logic controller input/output system |
摘要 |
This invention relates to a programmable logic controller inputs-outputs system comprising a processing unit (CPU) provided with a memory (M1, M2, M3) and at least one inputs-outputs coupler (C1 or C2 or C3 or C4) provided with a coupler memory (Mc) and forming the link between sensors and pre-actuators and the processing unit (CPU) characterized in that exchanges between the processing unit memory and each coupler memory are structured by logical channels carrying out a job function and grouping all or some physical channels of a coupler and in that the memory (M2) of the processing unit (CPU) contains objects related to each logical channel that form a data structure with standardized contents, these objects being exchanged with the coupler memory (Mc) through a user program by means of an instruction set.
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申请公布号 |
US5923903(A) |
申请公布日期 |
1999.07.13 |
申请号 |
US19960758376 |
申请日期 |
1996.11.29 |
申请人 |
SCHNEIDER AUTOMATION |
发明人 |
ALVAREZ-ESCURRA, JORGE;BARASTON, HENRY;BECK, FRANCOIS;PEROTTO, MARIE-CHRISTINE |
分类号 |
G05B19/05;(IPC1-7):G06F13/00 |
主分类号 |
G05B19/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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