Replacement for the 140CPU53414A Quantum PLC.
The replacement part number is the Quantum 140CPU53414B. As of 2015 the 140CPU53414B controllers are obsolete due to parts obsolescence and it is recommended to go to the Quantum Unity
based hardware. Depending on the architecture it would be recommended to go to the M340 or the M580.
NOTE: The Quantum Unity based processors will be end of life on 12/31/18 and replaced with the M580 that is currently now being sold.