Publication 1769-UM002B-EN-P - July 2005
Module Diagnostics and Troubleshooting 5-5
Module Error Field
The purpose of the module error field is to classify module errors into three
distinct groups, as described in the table below. The type of error determines
what kind of information exists in the extended error information field. These
types of module errors are typically reported in the controller’s I/O status file.
Refer to your controller manual for details.
Extended Error Information Field
Check the extended error information field when a non-zero value is present
in the module error field. Depending upon the value in the module error field,
the extended error information field can contain error codes that are
module-specific or common to all 1769 analog modules.
Hardware Errors
General or module-specific hardware errors are indicated by module error
code 2. See Table 5.4 1769-IF4 and -OF2 Extended Error Codes on page 5-6,
Table 5.5 1769-IF8 Extended Error Codes on page 5-7, and Table 5.6
1769-OF8C and -OF8V Extended Error Codes on page 5-10.
Table 5.3 Module Error Types
Error
Type
Module Error
Field Value
Bits 11 through 09
(Bin)
Description
No Errors 000 No error is present. The extended error field holds
no additional information.
Hardware
Errors
001 General and specific hardware error codes are
specified in the extended error information field.
Configurat
ion Errors
010 Module-specific error codes are indicated in the
extended error field. These error codes correspond
to options that you can change directly. For
example, the input range or input filter selection.
TIP
If no errors are present in the module error field, the
extended error information field will be set to zero.
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