The Programmable Logic Controllers (PLCs) feature Base Models with 10 to 14 I/O, Expandable to 256, Half the Size of Most PLCs, 1-, 4-, 8-, 16-and 32-Bit Instructions, DIN Rail Mountable, No Rack Required, Built-in Integral LCD Display, High-level Network Access Modbus TCP,Plug-In Modules for Analogue I/O,Thermocouples and Pt100 RTDs.