Rockwell-automation 1797-OE8H FLEX Ex HART Analog Modules User Manual Instrukcja Użytkownika Strona 15

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1 Publication 1797-6.5.3 - March 2006
Chapter
1
About the FLEX Ex HART Analog Modules
What This Chapter Contains
Read this chapter to familiarize yourself with the input and output analog
modules.
What the FLEX Ex Analog
I/O Modules Do
The 1797-IE8H module accepts up to 8 analog inputs. The inputs are
non-isolated and will accept current in either of the following two ranges: 4 to
20 mA or 0 to 20mA. The default input range is 0 to 20 mA. The inputs have
both fixed hardware filters and selectable firmware digital filters.
Similarly, the 1797-OE8H module provides as many as eight analog outputs.
The outputs are nonisolated and will provide current in either of the following
two ranges: 4 to 20 mA or 0 to 20 mA. The default output range is 0 to 20 mA.
Each module offers host of features including:
Local microprocessor intelligence for advanced features
Full functionality without switches or jumpers
Multiple data ranges that can be independently programmed
in channel groups
Lead breakage detection
Overrange/underrange alarms
Remote transmitter alarm
For See
What the FLEX Ex Analog I/O
Modules Do
1-1
How FLEX Ex Analog Modules
Communicate with Programmable
Controllers
1-2
Physical Features of Your Analog I/O
Module
1-3
Chapter Summary 1-15
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