Rockwell Automation 1797-IRT8 FLEX Ex Thermocouple/RTD/mV Input Module User Manual - Manual (Page 55)

1 Publication 1797-6.5.2 - February 2001
Chapter
6
Applying FLEX Ex Thermocouple/RTD/mV
Input Modules
What this Chapter Contains Read this chapter to learn how to use entity parameters when
electrically interconnecting your FLEX Ex thermocouple/RTD/mV
input module in a hazardous area.
The FLEX Ex system is different from traditional control systems used
the intrinsic safety in its ability to be located directly in hazardous
areas and to embrace high speed network-based control.
Evaluate the Application Follow these steps when designing a FLEX Ex system for your
application:
1. Define the area classification.
2. Select protection method(s).
3. Match field devices and I/O modules.
4. Optimize power distribution.
5. Layout the ControlNet Ex network.
An explanation of each of these steps is provided in this chapter.
For information on: See page:
Evaluate the Application 6-1
Define the Area Classification 6-2
Select Protection Method(s) 6-3
Match Field Devices and I/O Modules 6-3
Chapter Summary 6-10