Rockwell Automation 1771-OFE/B Analog Output Module User Manual - Manual (Page 65)

Chapter
7
Publication 1771Ć6.5.30 - November 1998
Diagnostics and
Troubleshooting
In this chapter, you will read how to troubleshoot your output
module using indicator lights and diagnostic bits.
For information on See page
Interpreting the indicator lights . . . . . . . . . . . . . . . . . . . . . . . 7-1
Read Block Transfer words . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
The front panel of the module contains a green RUN and a red FLT
(fault) indicator (Figure 7.1). At power-up, the red FLT indicator
lights and remains ON during an initial module self-check . If a fault
is found initially or occurs later, the red FLT indicator stays lit. If a
fault is not found, the red indicator will turn off and the green RUN
indicator will turn on and remain on. Possible module fault causes
and corrective actions are shown in Table 7.A.
Figure 7.1
Diagnostic Indicators
ANALOG
OUT
(12 BIT)
RUN
FLT
17948
Chapter Objectives
Interpreting the Indicator
Lights