一个控制过程可以分为若干个阶段,这些阶段称为状态或者步。状态与状态之间由转换条件分隔。当相邻两状态之间的转换条件得到满足时,就实现状态转换。状态转移只有一种流向的称作单流程顺控结构。
每一个状态或者步用一个状态元件表示,S0为初始步,也称为准备步,表示初始准备是否到位。其它为工作步。NIB MODUTEC MU4S-AACX-100 PANEL METER 800V PEAK TO GND
NIB TELEMECANIQUE LP2 D3201BD REVERSING CONTACTOR LP2D3
GOODYEAR 1260-XH-400 TIMING BELT 1200XH400
GE FANUC IC692MAA541C DRIVE TEST MODULE I/O 120VAC
FUJI ELECTRIC TR-1 1125 TRANSFORMER TR1 CAP. 2.5K
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HEINEN ELECTRONIK OE3220/0 K389 A5 PRINTED CIRCUIT BOAR
MELTRIC 19-68200 INLET/PLUG 1968200 NIB
FAG PAUL KIEFEL GmbH 20213T SPHERICAL BARREL ROLLER BEA
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EUROTHERM 018987 CONTROLLER BOARD
ALLEN BRADLEY 1326-CCUT-L-015 SERIES B CABLE ASSEMBLY 1
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