Allen-Bradley PLC-5 User Manual page 281

This
Fault
Code Indicates this Fault
70 The controller detected duplicate labels
71 The controller tried to start an SFC subchart that is already running
72 The controller tried to stop an SFC subchart that isn't running
73 The controller tried to start more than the allowed number of subcharts
74 SFC file error detected
75 The SFC has too many active functions
76 SFC step loops back to itself.
77 The SFC references a step, transition, subchart, or SC file that is missing, empty or too small
78 The controller cannot continue to run the SFC after power loss
79 You tried to download an SFC to a controller that cannot run SFCs
80 You have an I/O configuration error
81 You illegally set an I/O chassis backplane switch by setting both switch 4 and 5 on
82 Illegal cartridge type for selected operation. This error also occurs if the controller doesn't
have a memory module, but the backplane switches are set for a memory module. Make sure
the backplane switches are correct (set switch 6 ON and switch 7 OFF if the controller
doesn't have a memory module).
83 User watchdog fault
84 Error in user-configured adapter mode block-transfer
85 Memory module bad
86 Memory module is incompatible with host
87 Scanner rack list overlap
88 Scanner channels are overloading the remote I/O buffer; too much data for the controller to
process. If you encounter fault code 88, be sure you followed the design guidelines listed on
page 4-9. Specifically, make sure you:
• group together 1/4-racks and 1/2-racks of each logical rack. Do not intersperse these with other
rack numbers
• if using complementary I/O addressing, treat complementary rack addresses individually when
grouping racks; primary rack numbers are separate from complement rack numbers
Processor Status File
And the Fault Is
Non-recoverable
Recoverable
Non-recoverable
Non-recoverable
Publication 1785-UM012D-EN-P - July 2005
B-7