The GE 90-30 series PLC was introduced in 1991. Last year on 10/1/15, the 90-30 series was moved to “Mature” status. Per GE policy, the 90-30s will be discontinued 2 years after becoming mature. This means that on 10/1/17, it will be obsolete and GE will only offer repair services, but no new parts. The RX3i series is the replacement for the 90-30 or it may be time for the user to move to another manufacturer. PSE is prepared to help in either migrating to a new manufacturer or upgrading with GE to deal with the 90-30 series becoming obsolete.