Chapter 6, Troubleshoot the flex i/o analog i/o modules, What this chapter contains – Rockwell Automation 1794-OE8H FLEX I/O HART Analog Modules User Manual User Manual
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Publication 1794-UM063A-EN-P - March 2006
Chapter
6
Troubleshoot the FLEX I/O
Analog I/O Modules
What This Chapter Contains
Read this chapter to troubleshoot your I/O module.
Status Indicators
1794-IE8H Module
The 1794-IE8H module has one power indicator that is on when power is
applied to the module and one status indicator for each input.
For Information On
See Page
Table 6.1 1794-IE8H Status Indicators
Indicator
Color
State
Meaning
Status
Red
On
At power up – Channel 0 indicator lights at powerup until
all internal diagnostics are checked. After successful
powerup, the indicator goes off if no fault is present.
After successful powerup – Indicates a critical fault
(diagnostic failure, etc.)
Blinking (when
faults are
enabled, and bit
set)
Indicates a noncritical channel fault
Yellow
On/blinking
HART device was found on the associated channel (when
configured)
Power
—
Off
Module not powered
Green
On
Module receiving power
Blinking
No flexbus communication
A = Status indicators
B = Insertable labels for writing individual input
designations
C = Power indicator
PWR
1794-IE8H
8 CH HART ANALOG INPUT
IN1
IN0
IN2
IN3
IN4
IN5
IN6
IN7
3
A
B
C
I/O