# How to detect PLC failure **URL:** \ **Category:** Ignition\ **Created:** [June 7, 2019, 10:55am UTC](https://forum.inductiveautomation.com/t/how-to-detect-plc-failure/25631 "2019-06-07T10:55:23Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [June 7, 2019, 12:18pm UTC](https://forum.inductiveautomation.com/t/how-to-detect-plc-failure/25631/2 "2019-06-07T12:18:53Z")
You haven't mentioned PLC type, but your screen shot suggests Rockwell. If so you may be able to leverage the [Diagnostics]Device/Status tag. > [@Logix Device Status](http://forum.inductiveautomation.com/t/logix-device-status/24103/4): > > The CIP Spec has some generic definitions for the bits in that word in Volume 3, table 5A-2.3 and table 5A-2.4, and requires that the reserved/vendor bits there, if used, be declared in the device’s EDS file. Bit 0: "Owned". Not applicable to a processor, I would think. Bit 1: Reserved. Bit 2: "Configured". Probably always true except when at factory default. Bit 3: Reserved. Bits 4-7: 4-bit integer extended status code: 0: Self test/unknown 1: Firmware updating 2: Any Faulted I/O co… --- _[View the full topic](https://forum.inductiveautomation.com/t/how-to-detect-plc-failure/25631)._