Rockwell Automation Logix 5000 Programming Manual

Rockwell Automation Publication 1756-PM014N-EN-P - March 2022 27
Chapter 2
Minor Faults
This chapter explains minor fault codes and how to work with them in the
Logix Designer application.
Use this table to understand how to use ladder logic to monitor information
about common minor faults.
To check for a
Do this
Task overlap
• Enter a GSV instruction that gets the FaultLog object, MinorFaultBits attribute.
• Monitor bit 6.
Load from nonvolatile memory
•
Enter a GSV instruction that gets the FaultLog object, MinorFaultBits attribute.
• Monitor bit 7.
Serial port fault
• Enter a GSV instruction that gets the FaultLog object, MinorFaultBits attribute.
• Monitor bit 9.
Low battery, energy storage
status or uninterruptable power
supply (UPS) fault
•
Enter a GSV instruction that gets the FaultLog object, MinorFaultBits attribute.
• Monitor bit 10.
Instruction-related fault
1. Create a user-defined data type that stores the fault information. Name the data type FaultRecord and assign
the following members.
Name
Data Type
Style
TimeLow
DINT
Decimal
TimeHigh
DINT
Decimal
Type
INT
Decimal
Code
INT
Decimal
Info
DINT[8]
Hex
1. Create a tag that stores the values of the MinorFaultRecord attribute.
2. From the Data Type menu in step 1 of this instruction, choose the data type.
3. Monitor S:MINOR.
4. Use a GSV instruction to get the values of the MinorFaultRecord attribute if S:MINOR is on.
5. Reset S:MINOR if you want to detect a minor fault that is cause by another instruction.
S:MINOR remains set until the end of the scan.
See also
Minor fault codes on page 29
Identify minor faults

Rockwell Automation Logix 5000 Specifications

General

Brand	Rockwell Automation
Model	Logix 5000
Category	Controller
Language	English