Allen-Bradley 1794-OE8H Manual de usuario descargar pdf (Pagina 23)

Publication 1797-6.5.1 - April 1999

Understanding Configurable FLEX Ex Analog Module Features 2-9

Analog Fault State

The Analog Fault State feature determines how your I/O module reacts to

faults when a channel is used in analog mode. After a fault condition occurs,

the module may got to minimum value, maximum value, hold last state or

50% of range.

Use your programming software to set the Analog Fault State bits on the

I/O module for one of the following fault reactions:

• 0 = minimum value

• 1 = maximum value

• 2 = hold last state

• 3 = 50% of range

You can set these parameters independently for channels 0-1, 2-3, 4-5, 6-7.

Digital Fault State

The Digital Fault State feature determines how your I/O module reacts to

faults when a channel is used in digital mode. After a fault condition occurs,

the module may reset channel outputs or hold last state of the outputs.

Use your programming software to set the Digital Fault State bit to 0 to

reset outputs. Set to 1 to hold last state of the outputs after a fault occurs.

This feature is available on a per channel basis.

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Allen-Bradley 1794-OE8H Manual de usuario Pagina 23