Specifications

Publication 1747-UM011G-EN-P - June 2008
154 Troubleshooting
• Power status indicator
is on
• Run status indicator is
on
• Force status indicator is
on
• All other status
indicators are off
• Status of any
Communication status
indicator does not
matter
System does not
operate per ladder
logic
User forced I/O is
disabling operation.
1. Monitor program file on-line and identify forced I/O.
2. Disable appropriate forces and test system conditions again.
• Power status indicator
is on
• Run status indicator is
on
• Force status indicator is
flashing
• All other status
indicators are off
• Status of any
Communication status
indicator does not
matter
System does not
operate per
programmed
forces
User programmed
forces are not
enabled.
1. Monitor program file on-line and identify programmed
forces.
2. Enable appropriate forces and test system conditions again.
Once forces are enabled, the Force status indicator turns on
(steady).
• Power status indicator
is on
• FLT status indicator is
flashing
• Batt status indicator is
on
• All Other status
indicators are off
• Status of any
Communication status
indicator does not
matter
CPU major error
with low or no
battery back-up
Loss of RAM during
power-down.
1. Verify battery is connected. See page 137.
2. Replace the battery if you want RAM battery backup. See
page 137.
3. Refer to processor major fault recommended action steps.
SLC 5/03, SLC 5/04, and SLC 5/05 Processor Errors
If the status indicators
indicate
The following
error exists
Probable Cause Recommended Action
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