Rockwell-automation 1797-OE8H FLEX Ex HART Analog Modules User Manual Manual do Utilizador descarregar pdf (Página 105)

Publication 1797-6.5.3 - March 2006

Apply FLEX Ex Analog I/O Modules 6-7

I/O

The input and output modules comply fully to and provide simple entity

parameters. These modules can directly interface with a wide variety of

intrinsically safe controls and instrumentation. Because all field device power is

supplied directly from the I/O module, no extra wiring or power sources are

needed in a hazardous area.

Finally, these modules maintain intrinsic safety in hazardous areas by providing

isolation from other modules in the system as well as intrinsic safety

segregation between channels on the same module.

Optimize Power

Distribution

Your FLEX Ex system must use adequate power supplies to support the

physical locations determined earlier in this chapter. Each FLEX Ex I/O

module in the system is rated for input power, and the FLEX Ex power supply

is rated in the number of output channels and power available from each

channel.

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Rockwell-automation 1797-OE8H FLEX Ex HART Analog Modules User Manual Manual do Utilizador Página 105