User manual

Publication 1797-6.5.1 - April 1999
About the FLEX Ex Analog Modules 1-3
Physical Features of Your
Analog I/O Module
The module label identifies the keyswitch position, wiring and module
type. Use the removable label to note individual designations per
your application.
Indicators
Indicators are provided to identify input or output fault conditions, and to
show when power is applied to the module. For example, the 1797-IE8
module is shown below.
Using Alarms on the
1797-IE8 Module
The 1797-IE8 FLEX Ex module is capable of generating four alarms:
• Underrange
• Overrange
• Remote Fault
• Local Fault
These alarm conditions are described in general terms and as they relate to
bits on the FLEX Ex I/O module on the following pages. The graphic below
shows at what values these alarms are generated for Data Format 4.
Ex
PWR
1797-IE8
8 CHANNEL ANALOG INPUT
IN1IN0 IN2 IN3 IN4
IN5
IN6 IN7
3
40070
1797-IE8
Module Type
Removable Label
Keyswitch Position
Indicator (#3)
Power On Indicator
Input Designators