40 94 00
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Digital Process Controllers
Includes digital devices that monitor, control and/or record industrial process variables.
Alternate Terms/Abbreviations PC: personal computer. PDA: personal digital assistant. DCS: distributed control systems. HMI: human – machine interfaces. PLC: programmable logic controllers.

40 94 00 Digital Process Controllers
40 94 13 Digital Process Control Computers
40 94 23 Distributed Process Control Systems
40 94 33 Human – Machine Interfaces
40 94 43 Programmable Logic Process Controllers