- 行业: Automation
- Number of terms: 8432
- Number of blossaries: 0
- Company Profile:
Rockwell Automation, Inc. provides industrial automation power, control, and information solutions.
1) A quantitative expression of the output of a device or system as a function of the input. 2) On a communication link, a signal of a condition such as the acknowledgment of a message being received.
Industry:Automation
A partition or separation used for the insulation or isolation of electric circuits or electric arcs (as defined in NEMA Standard Pub. No. ICS 2, 1988).
Industry:Automation
Fastening components built to stay in position after disassembly to enhance ease of re-assembly.
Industry:Automation
The vertical movement of data on a display screen caused by the dropping of one line of displayed data for each new line added at the opposite end.
Industry:Automation
A battery or set of batteries that will provide power to memory only when the main power source is off.
Industry:Automation
A simplified drawing showing components as boxes or other simple shapes, and possibly using a single line to represent several interconnections to show basic functions and relationships.
Industry:Automation
The 2’s complement of the 8-bit sum (modulo-256 arithmetic sum) of all data bytes in a transmission block. It provides a means of checking the accuracy of each message transmission.
Industry:Automation
1) A rung-output instruction that continuously controls the state of the output. Whenever the rung changes state (to true or not true), the output turns on or off. 2) Contrasted with a retentive output instruction that only controls the output state when the rung is true
Industry:Automation
Feedback that is subtractive from the input reference signal. Negative feedback forms the basis for closed-loop control systems.
Industry:Automation
