Allen-Bradley Rockwell Automation 1734-AENT Manual de usuario descargar pdf (Pagina 182)

182 Publication ENET-UM001I-EN-P - January 2010

Appendix A Status Indicators

I/O Status Indicators

Indicator Description

Digital Inputs There is one status indicator for each digital input point of the

CompactLogix packa

ged controller. When an input is ON, the

corresponding input light is on (amber).

Digital Outputs There is one status indicator for each digital output point of the

CompactL

ogix packa

ged controller. When an output is ON, the

corresponding output light is on (amber).

Analog I/O The analog I/O have one status indicator - the OK status indicator.

If the indi

cator is green, the analog I/O hav

e power, have passed

internal diagnostics, and are communicating properly. If analog

I/O OK indicator is off, a fault is present.

High Speed Counter The high-speed counters have 12 status indicators. Use this table

to int

rpret the HSC status indicators.

I/O Status Indicator

Indicator Status Description

0, 1, 2, and 3 Amber The corresponding output is ON.

A0, A1, B0, B1, Z0

and Z1

Amber The corresponding input is ON.

FUSE

Red An overcurrent condition is present.

OK Off No power to the High Speed Counter.

Flashing red, brief The HSC is testing itself; this usually occurs at start-up.

Steady green The HSC is operating normally.

Flashing green The HSC is in Run mode.

Steady red A fault has occurrred.

Flashing red, continuous An HSC configuration error exists.

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Allen-Bradley Rockwell Automation 1734-AENT Manual de usuario Pagina 182