Allen-Bradley MicroLogix 1100 User Manual

Publication 1763-UM001E-EN-P - June 2015
Troubleshooting Your System 191
Critical and Non-Critical Errors
Non-critical module errors are recoverable. Channel errors (over-range or
under-range errors) are non-critical. Non-critical error conditions are indicated
in the module input data table. Non-critical configuration errors are indicated
by the extended error code. See Table on page C-193.
Critical module errors are conditions that prevent normal or recoverable
operation of the system. When these types of errors occur, the system leaves
the run mode of operation. Critical module errors are indicated in Table on
page C-193.
Module Error Definition Table
Analog module errors are expressed in two fields as four-digit Hex format
with the most significant digit as “don’t care” and irrelevant. The two fields are
“Module Error” and “Extended Error Information”. The structure of the
module error data is shown below.
Module Error Table
“Don’t Care” Bits Module Error Extended Error Information
1514131211109876543210
0000000000000000
Hex Digit 4 Hex Digit 3 Hex Digit 2 Hex Digit 1

Allen-Bradley MicroLogix 1100 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1100
Category	Controller
Language	English