Basic main processor with math coprocessor for Modicon Quantum PLC ...

Coated 1056kB memory main processor for Modicon Quantum PLC control system ...

Mid-range 1056kB RAM controller for Modicon Quantum PLC control system ...

Coated mid-range main processor with multi-communication ports for Modicon Quantum PLC control system ...

66MHz mid-range processor with Modbus Plus port for Modicon Quantum PLC ...

Medium-performance 2M processor with dual MB+ ports for Modicon Quantum PLC control system ...