Rockwell-automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual Uživatelský manuál stáhnout pdf (Strana 109)

Publication 1794-UM064B-EN-P - May 2014

Apply FLEX I/O Modules 97

Select Protection

Method(s)

Although the FLEX Ex system primarily uses the Intrinsic Safety protection

method, the system uses all methods listed below.

Match Field Devices

and I/O Modules

You must match field devices and I/O modules for your application to function

properly. Consider the following:

• Verify field device and I/O module operational characteristics

• Match entity parameters of field devices and I/O modules

Protection Methods for Hazardous Applications

Protection Method

Designation

1(1)

(1)

In the Non-Incendive protection method, n: used locally in the United States and United Kingdom.

In the Intrinsic Safety method, ia: Zone 0, 1, 2 & ib: Zone 1, 2.

Method of Achieving

Protection

Intrinsic Safety EEx

/EEx

Energy Limiting

Encapsulation EEx

Segregation

Increased Safety EEx

Refined Mechanical Design

Flameproof EEx

Containment

IMPORTANT

As not all protection methods are applicable for all locations, consult

local certifying agencies to determine acceptable protection methods

for your application.

WARNING: The FLEX I/O PROFIBUS APBDPV1 adapter cannot be used

within an intrinsically safe area but can be connect to a FLEX Ex system

in an intrinsically safe area from outside the safe zone by using the

1797-BIC and 1797-CEC with the FLEX Ex extension cables.

For more information on how to use FLEX I/O PROFIBUS APBDPV1

adapter modules with a FLEX Ex system, refer to the FLEX Ex Bus

Isolator and Flexbus Connector Installation Instructions,

publication 1797-IN513

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Rockwell-automation 1794-APBDPV1 FLEX I/O PROFIBUS Adapter User Manual Uživatelský manuál Strana 109