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wilamowski-b-m-irwin-j-d-industrial-communication-systems-2011

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START RUNSTOP<br />

COLD INIT INITO<br />

WARM REQ CNF RS_GATE<br />

STOP<br />

IND<br />

EI EO0<br />

EO1<br />

E_RESTART SWITCH2<br />

QI QO<br />

E_SWITCH<br />

“RUN” LABEL1 OUT<br />

G<br />

“STOP” LABEL0<br />

UP<br />

IN<br />

INIT INITO<br />

IND<br />

PUSH_BUTTON DOWN<br />

QI QO INIT INITO<br />

“UP” LABEL<br />

IND<br />

PUSH_BUTTON<br />

QI QO<br />

“DOWN” LABEL<br />

Controller<br />

START STOP<br />

CPU NI<br />

FIGURE 55.5 New system with added peripherals.<br />

DT<br />

INIT INITO<br />

REQ IND<br />

KNOB<br />

1 QI QO<br />

W OUT<br />

“TIME” TYPE<br />

t#250ms IVAL<br />

TIME<br />

Decentralized logic<br />

PERIODIC<br />

START EO<br />

LOGIC1<br />

STOP<br />

INIT INITO<br />

LEDS1<br />

NEW CNF<br />

INIT INITO<br />

E_CYCLE<br />

REQ CR<br />

REQ CNF<br />

DT<br />

LIGHTS<br />

LED_HM1<br />

FREQ<br />

MODE LED3<br />

LED3<br />

REQ CNF<br />

CURFREQ<br />

LED2<br />

LED2<br />

INIT INITO<br />

DIV2<br />

LED1<br />

LED1<br />

MUL2<br />

REQ CNF<br />

LED0<br />

LED0<br />

BITN<br />

C0<br />

MEMT<br />

NUM_DISP<br />

IN OUT 1 QI QO<br />

MODE<br />

C1<br />

IN<br />

INIT INITO<br />

4 W<br />

REQ IND<br />

LOGIC2<br />

INIT INITO<br />

“TIME” TYPE<br />

LEDS2<br />

IVAL<br />

SWITCH3<br />

NEW CNF<br />

INIT INITO<br />

1 QI QO<br />

REQ CR<br />

REQ CNF<br />

“FLASH_ALL, CHASE_UP, CHASE_DOWN” CHOICES OUT<br />

I<br />

LIGHTS<br />

LED_HM1<br />

MODE LED3<br />

LED3<br />

LED2<br />

LED2<br />

LED1<br />

LED1<br />

LED0<br />

LED0<br />

BITN<br />

C0<br />

C1<br />

MODE<br />

ALL<br />

CHS_UP<br />

CHS_DOWN<br />

LED3 LED2 LED1 LED0 LED3 LED2 LED1 LED0<br />

Added physical components<br />

55-8 Industrial Communication Systems<br />

© <strong>2011</strong> by Taylor and Francis Group, LLC

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