Allen Bradley MicroLogix Controllers come in a variety of sizes and specifications. I/O Modules are available in digital and analog versions. In stock New and Used as shown below.There are five levels of controls available, providing features to suit most applications. MicroLogix Controllers function as traditional SLC & PLC systems, only in smaller form. These Modules are compatible with Allen Bradley PanelView Operator Interface terminals. They have RSLogix 500 programming software and RSLogix Micro programming software.These modules offer built-in enhanced RS-232C ports supporting DF1 Full-Duplex, DF1 Half-Duplex Slave, and DH-485 protocols.