TAC 221R controller replacement

Issue

Controller TAC221R is obsolete and needs to be replaced.

Product Line

TAC Vista, Field Devices

Environment

2212020800 Controller TAC221R

Cause

Replacement may be required since the TAC221R is obsolete since the end of 2009.

Resolution

There is no direct replacement available. In most applications, a free programmable Xenta controller with custom application is the only way to recreate functionality of the TAC 221R.