3-18 Series 90-30/20/Micro Programmable Controllers Reference Manual – September 1998 GFK-0467K
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Addition of I/O Module
The Fault Category Addition of I/O Module applies to Model 30 discrete and analog I/O modules.
There are no fault types or fault descriptions associated with this category. The fault action is
Diagnostic.
Description: The PLC operating software generates this error when an I/O module which had
been faulted returns to operation.
Correction: (1) No action necessary if the module was removed or replaced,
or the remote rack was power cycled.
(2) Update the configuration file or remove the module.
Description: The PLC operating software generates this error when it detects a Model 30 I/O
module in a slot which the configuration file indicates should be empty.
Correction: (1) Remove the module. (It may be in the wrong slot.)
(2) Update and restore the configuration file to include the extra
module.