Allen Bradley PLC Controller Fault Codes

TYPE	CODE	MESSAGE	FORUM LINK
1	1	Run Mode Powerup
1	60	Nonrecoverable
1	61	Nonrecoverable – Diagnostics Saved on CF Card
1	62	Nonrecoverable – Diagnostics and Program Saved on SD card
3	16	I/O Connection Failure
3	20	Chassis Failure
3	21	Chassis Failure
3	23	Connection Failure	https://www.commonautomation.com/forum/plc-questions/ab-plc-type-03-i-o-fault-code-23
4	16	Unknown Instruction
4	20	Invalid Array Subscript
4	21	Control Structure LEN or POS < 0
4	31	Invalid JSR Parameter
4	34	Timer Failure
4	42	Invalid JMP Target
4	82	SFC Jump Back Failure
4	83	Value Out of Range
4	84	Stack Overflow
4	89	Invalid Target Step
4	90	Invalid Instruction
4	91	Invalid Context
4	92	Invalid Action
4	990	User-defined
4	991	User-defined
4	992	User-defined
4	993	User-defined
4	994	User-defined
4	995	User-defined
4	996	User-defined
4	997	User-defined
4	998	User-defined
4	999	User-defined
6	1	Task Watchdog Expired
7	40	Save Failure
7	41	Bad Restore Type
7	42	Bad Restore Revision
7	43	Bad Restore Checksum
7	44	Failed to Restore Processor Memory
8	1	Keyswitch Change Ignored
11	1	Positive Overtravel Limit Exceeded
11	2	Negative Overtravel Limit Exceeded
11	3	Position Error Tolerance Exceeded
11	4	Encoder Channel Connection Fault
11	5	Encoder Noise Event Detected
11	6	Sercos Drive Fault
11	7	Synchronous Connection Fault
11	8	Servo Module Fault
11	9	Asynchronous Connection Fault
11	10	Motor Fault
11	11	Motor Thermal Fault
11	12	Drive Thermal Fault
11	13	Sercos Communications Fault
11	14	Inactive Drive Enable Input Detected
11	15	Drive Phase Loss Detected
11	16	Drive Guard Fault
11	32	Motion Task Overlap Fault
11	33	CST Reference Loss Detected
12	32	Disqualified Secondary Controller Cycle Power
12	33	Unpartnered Controller Identified in New Primary Chassis
12	34	Keyswitch Positions of Primary and Secondary Controllers Mismatched
14	1	Safety Task Watchdog Expired
14	2	Error In Routine of Safety Task
14	3	Safety Partner Missing
14	4	Safety Partner Unavailable
14	5	Safety Partner Hardware Incompatible
14	6	Safety Partner Firmware Incompatible
14	7	Safety Task Inoperable
14	8	Coordinated System Time (CST) Not Found
14	9	Safety Partner Nonrecoverable Controller Fault
18	1	CIP Motion Initialization Fault
18	2	CIP Motion Initialization Fault Mfg
18	3	CIP Motion Axis Fault
18	4	CIP Motion Axis Fault Mfg
18	5	CIP Motion Fault
18	6	CIP Module Fault
18	7	Motion Group Fault
18	8	CIP Motion Configuration Fault
18	9	CIP Motion APR Fault
18	10	CIP Motion APR Fault Mfg
18	128	CIP Motion Guard Fault