- 行业: Automation
- Number of terms: 8432
- Number of blossaries: 0
- Company Profile:
Rockwell Automation, Inc. provides industrial automation power, control, and information solutions.
In a systems context, the environment is anything that is not a part of the system itself. Knowledge about the environment is important because of the effect it can have on the system or because of possible interactions between the system and the environment.
Industry:Automation
A group of sub-layers and/or entities in the OSIRM that provides services to the layer above and requests services from the layer below.
Industry:Automation
An enclosed channel used to hold and protect wires, cables or busbars. A raceway may be made of either metal or insulating material. Raceways include conduit, tubing, and wireways.
Industry:Automation
The physical size of a motor, usually consisting of NEMA-designed D and F dimensions at a minimum. The D dimension is the distance in quarter inches from the center of the motor shaft to the bottom of the mounting feet. The F dimension relates to the distance between the centers of the mounting feet holes.
Industry:Automation
1) Adding, deleting, or changing the contents of records in a file. 2) Reorganizing the structure of a file to improve access to records or to change the storage space required.
Industry:Automation
A processor that controls all the I/O, but has a backup (secondary) processor to take over system operation in case it fails.
Industry:Automation
In a token-passing ring communication system, a station normally waits for the token before sending a reply. However, an immediate reply is sent while the station sending the command is still holding the token. Compare with reply and acknowledgement.
Industry:Automation
To transfer information from one system or program to another. This typically involves conversion to ASCII format.
Industry:Automation
A group of two bits. In four-phase modulation, each possible dibit is encoded as one of four unique carrier phase shifts. The four possible states for a dibit are 00, 01, 10, 11.
Industry:Automation
