# Unable to Write to PLC Tags (Read OK)

**URL:** <https://forum.inductiveautomation.com/t/unable-to-write-to-plc-tags-read-ok/68785>\
**Category:** Ignition\
**Created:** [January 19, 2023, 12:47pm UTC](https://forum.inductiveautomation.com/t/unable-to-write-to-plc-tags-read-ok/68785 "2023-01-19T12:47:17Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**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:** [January 19, 2023, 1:44pm UTC](https://forum.inductiveautomation.com/t/unable-to-write-to-plc-tags-read-ok/68785/9 "2023-01-19T13:44:35Z")

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> [@Laurence\_Roberts](#):
>
> I can only seem to connect to out Micro820 PLCs via Modbus TCP.

No longer true:

> [@Automation Professionals' EtherNet/IP Communication Suite V2](https://forum.inductiveautomation.com/t/automation-professionals-ethernet-ip-communication-suite-v2/68190):
>
> Automation Professionals is pleased to announce its latest EtherNet/IP Communications Suite driver module, a major upgrade to its EtherNet/IP Class1 Communications module, as a Public Beta. As of April 15, 2023, this is now a Production Release. The primary new feature is its new Generic EtherNet/IP Client Driver, a drop-in replacement for IA's Logix V21+ driver and its Omron NJ/NX driver. It does work with older Logix processors, and also works with Rockwell's MicroLogix 8xx family (ethernet…

{ /shameless plug }

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