# Reading an Ignition from an AB Contrologix PLC **URL:** \ **Category:** Ignition\ **Created:** [November 1, 2023, 3:16am UTC](https://forum.inductiveautomation.com/t/reading-an-ignition-from-an-ab-contrologix-plc/81277 "2023-11-01T03:16:56Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![bzimmer](https://avatars.discourse-cdn.com/v4/letter/b/a4c791/32.png) [@bzimmer](https://forum.inductiveautomation.com/u/bzimmer)\ **Post date:** [November 1, 2023, 3:16am UTC](https://forum.inductiveautomation.com/t/reading-an-ignition-from-an-ab-contrologix-plc/81277/1 "2023-11-01T03:16:57Z")
Recent IT changes are requiring all communication between SCADA and PLC to be read only. Is there a way to monitor a tag in the Ignition project from an AB PLC? ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [November 1, 2023, 10:36am UTC](https://forum.inductiveautomation.com/t/reading-an-ignition-from-an-ab-contrologix-plc/81277/2 "2023-11-01T10:36:24Z")
Yes, you can use Adapter mode of my EtherNet/IP driver to mimic a real PLC, and have the true PLC use Message Instructions to pull from Ignition. I would go further to say your IT department is being more than a bit **ridiculous**. The "SC" in "SCADA" is **supervisory control** , which obviously cannot be conducted without _writing control values_. Having the PLC "pull" values from SCADA is no more secure than having selected PLC tags be writable for Ignition. ---
**Author:** ![bzimmer](https://avatars.discourse-cdn.com/v4/letter/b/a4c791/32.png) [@bzimmer](https://forum.inductiveautomation.com/u/bzimmer)\ **Post date:** [November 1, 2023, 3:30pm UTC](https://forum.inductiveautomation.com/t/reading-an-ignition-from-an-ab-contrologix-plc/81277/3 "2023-11-01T15:30:53Z")
When you say “my Ethernet I/P” driver, what exactly are you referring to? Sorry for my ignorance. ---
**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\ **Post date:** [November 1, 2023, 3:42pm UTC](https://forum.inductiveautomation.com/t/reading-an-ignition-from-an-ab-contrologix-plc/81277/4 "2023-11-01T15:42:12Z")
No worries. This: > [@Automation Professionals' EtherNet/IP Communication Suite V2](https://forum.inductiveautomation.com/t/automation-professionals-ethernet-ip-communication-suite-v2/68190/114): > > Array bulk read regression fix, for Logix processors only. For Ignition v8.1+: [v2.1.8.233041759](https://www.automation-pros.com/ignition/EthernetIP%20Class%201%20Communications-2.1.8.233041759-v81.modl) And "EtherNet/IP" is the proper spelling. ---
**Author:** ![lrose](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lrose/32/62724_2.png) [@lrose](https://forum.inductiveautomation.com/u/lrose)\ **Post date:** [November 1, 2023, 4:13pm UTC](https://forum.inductiveautomation.com/t/reading-an-ignition-from-an-ab-contrologix-plc/81277/5 "2023-11-01T16:13:47Z")
> [@pturmel](#): > > I would go further to say your IT department is being more than a bit **ridiculous**. I second this whole heartily. Sounds like some one is making rules for things they don't understand. ---
**Author:** ![michael.flagler](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/michael.flagler/32/26272_2.png) [@michael.flagler](https://forum.inductiveautomation.com/u/michael.flagler)\ **Post date:** [November 1, 2023, 9:58pm UTC](https://forum.inductiveautomation.com/t/reading-an-ignition-from-an-ab-contrologix-plc/81277/6 "2023-11-01T21:58:31Z")
Exactly! If they have any other HMI software there as well, like PanelViews, there's no way to do it. Unless they have local HMIs that allow R/W, but they have a corporate SCADA system that they only want to have read-only access to the PLC. That scenario makes more sense.