Sterling Services leads the Industrial Automation Software Industry. We offer PLC programming software for Modicon, Allen-Bradley, Siemens, Texas Instruments, Square-D Sy/Max, and other PLC systems. Sterling has been a leader in the industry since 1991. Sterling's large inventory of Industrial Automation Equipment includes products like relays, circuit boards, selector switches, monitors, circuit breakers, sensors, photoelectrics, contactors, servo drives, PLC modules, AC drives, speed controls, power supplies, electrical hardware, starters, pressure controls, industrial controls, temperature controls, process controls, instruments, timers, counters, proximity switches, inverters, transmitters, push buttons, IO blocks. Industrial Automation Software is integral in industrial automation. Major manufacturers are Allen Bradley, General Electric, Reliance, Siemens, Cutler-Hammer, Mitsubishi, Omron, Telemecanique, Honeywell, Uticor, Nematron, Texas Instruments, Square D, Westinghouse, Modicon and CTC. Chances are, we have the software you need for your industrial automation systems.