摘要 |
<p>PCT No. PCT/GB93/01155 Sec. 371 Date Dec. 9, 1994 Sec. 102(e) Date Dec. 9, 1994 PCT Filed Jun. 1, 1993 PCT Pub. No. WO93/24870 PCT Pub. Date Dec. 9, 1993Intelligent data storing apparatus for use in a control system comprising at least one programmable logic controller (PLC) for controlling one or more devices to perform a process, the process having a number of variants. The apparatus comprises means for receiving a data request including a code designating a process variant and a code indicative of one or more designated devices requiring control in order to implement the process variant; a database dictionary defining a tree structure relating operational data elements to particular variants of the process and particular devices; and means for retrieving operational data elements from the database using pathnames corresponding to the structure specified in the database dictionary and for formulating the retrieved data into a block having a predetermined structure for outputting to the PLC.</p> |
申请人 |
DUCOST ENGINEERING LTD., THAMESMEAD, ERITH, KENT, GB |
发明人 |
CALOTYCHOS, JEAN, ANDRE FLAT 2, PIMLICO LONDON SW1, GB;MILES, MARK 22 BROCK CLOSE, ESSEX CM8 1NS, GB;KINGDON, ANTHONY 6 KONNYBROOK, ESSEX, GB;MCBRIDE, JOHN, MATHER 263 PEPPARD ROAD, BERKS. RG4 8UB, GB |