Title:
FIELD DEVICE COMMUNICATION APPARATUS IN DISTRIBUTED CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP3890587
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To realize a distributed control system capable of fast referring to an internal parameter in a field device in a fixed-cycle.
SOLUTION: In this distribute control system consisting of a field control station(FCS) connected to a host system through a control bus, a field bus communication interface module for communicating with the FCS through a remote I/O bus and the field device for performing communication with the field bus communication interface module through a field bus, the field device is provided with a function for putting together internal parameters of a function block as one piece of structure data and returning the structure data, and the field bus communication interface module is provided with a reference communication functioning part for disassembling the received structure data, referring to an internal parameter information table and storing the disassembled structure data in an on-line communication channel.
Inventors:
Shuji Kase
Application Number:
JP2000129970A
Publication Date:
March 07, 2007
Filing Date:
April 28, 2000
Export Citation:
Assignee:
Yokogawa Electric Corporation
International Classes:
G08C19/00; H04L12/40; G05B15/02; (IPC1-7): H04L12/40; G05B15/02; G08C19/00
Domestic Patent References:
| JP11143506A | ||||
| JP4289952A |
Foreign References:
| WO1999067690A1 |