
6–10 Handling Exceptions — Faults and Warnings
1336 FORCE — 5.9 August 1995
The following table provides a description of the possible faults and
warnings and the action that you need to take to clear the problem.
Fault Text Code Description Action
FB Internal Err 24027 An internal function block error occurred. Restart your system.
Invalid FB Link 24028 Your application contains an invalid
function block link.
1. Determine which node has the incorrect link
reference.
2. Clear the link or link the node to a valid source.
3. Clear the fault queue.
FB I/O Limit Err 24029 The system is out of dynamic RAM.
1. Perform a function block BRAM Init.
2. Remove extra event blocks to reduce the number
of nodes.
FB Mem Aloc Err 24030 A function block memory allocation error
occurred.
Perform a function block BRAM Init.
FB BRAM Chsm
Err
24034 The data in the BRAM has been
corrupted and the checksums do not
match.
1. Perform a function block BRAM Init.
2. Perform a function block BRAM Store.
3. Download a new execution list.
Init FB BRAM Flt 24037 The data in the BRAM has been
corrupted.
Clear the fault queue.
FB Near Mem Lim 24044 The system is almost out of dynamic
RAM.
You can either ignore this warning until the
system runs out of dynamic RAM and you
receive a FB I/O LImit Err, or perform a function
block BRAM Init and remove extra event
blocks.
FB DNLD Bad
Evnt
24045 An attempt was made to download an
execution list that contains a bad event.
Verify that all events have a valid ID number
and that no numbers are duplicated.
FB Bad Pkt Num 24046 The service received a bad packet
number. This occurs when the drive
receives a packet that is outside of the
range specified by packet 0.
Restart the download process.
FB Dnld Blk# Wrn 24049 An invalid block number was received.
1. Check the data from the previous download
process.
2. Restart the download process.
FB Dnld Cksm
Wrn
24050 The execution list did not pass the
checksum test.
•Verify the execution list data.
•Verify that the checksum was calculated correctly
(if using a PLC).
FB Near Exec Lim 24052 The application is close to the 20
millisecond task interval.
Check the execution time of the 20 millisecond
function block task.
Fault Codes
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