TY - JOUR
T1 - Two diagnostic models for PLC controlled flexible manufacturing systems
AU - Hu, W.
AU - Starr, A. G.
AU - Leung, A. Y T
PY - 1999
Y1 - 1999
N2 - The control of flexible manufacturing systems (FMS's) is generally characterised by logical and sequential functions under the auspices of a programmable logic controller (PLC). Operational faults associated with control processes are often confusing to maintenance personnel at workshop level. This has resulted in the development of automatic diagnosis techniques. In this paper two generic diagnostic models based on the logical function chart and sequential control process of the PLC are developed. With the two complementary models, the major operational faults of PLC controlled FMS's can be diagnosed. Application of the models to a typical FMS is presented.
AB - The control of flexible manufacturing systems (FMS's) is generally characterised by logical and sequential functions under the auspices of a programmable logic controller (PLC). Operational faults associated with control processes are often confusing to maintenance personnel at workshop level. This has resulted in the development of automatic diagnosis techniques. In this paper two generic diagnostic models based on the logical function chart and sequential control process of the PLC are developed. With the two complementary models, the major operational faults of PLC controlled FMS's can be diagnosed. Application of the models to a typical FMS is presented.
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U2 - 10.1016/S0890-6955(99)00022-X
DO - 10.1016/S0890-6955(99)00022-X
M3 - RGC 21 - Publication in refereed journal
SN - 0890-6955
VL - 39
SP - 1979
EP - 1991
JO - International Journal of Machine Tools and Manufacture
JF - International Journal of Machine Tools and Manufacture
IS - 12
ER -
