to follow or endeavor to follow as a model or example: to imitate an author's style; to imitate an older brother. to mimic; impersonate: The students imitated the teacher behind her back. to make a copy of; reproduce closely. to have or assume the appearance of; simulate; resemble.
The input device might be a keyboard, the output device might be a monitor, a communication device might be a modem, a secondary storage device might be disk drive, and the processing devices include central processing unit (CPU) and main memory.
Analog input/output module. Output Module: Table 2 highlights some key specifications of PLC output modules. Since the true system accuracy lies within the measurement channel (ADC), the control mechanism (DAC) requires only enough resolution to tune the output. For high-end systems, 16-bit resolution is required.