Glossary – Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual User Manual

Page 153

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Publication 1760-UM003A-EN-P - September 2005

Glossary

Terminating Resistor

Terminating resistor at the start and end of a bus cable. Prevents
interference due to signal reflection and is used for the adaptation of
bus cables. Bus terminating resistors must always be the last unit at
the end of a bus segment.

Acknowledge

Acknowledgement returned by the receiving station after having
received a signal.

Address

Number that identifies a memory area, systems or module within a
network, for example.

Addressing

Assignment or setting of an address for a module in the network, for
example.

Active metallic component

Conductor or conductive component that is live when in operation.

Analogue

Value, such as voltage, that is infinitely variable and proportional.
Analogue signals can acquire any value within specific limits.

Automation product

I/O controlling device that is interconnected to a system process.
Programmable controllerss represent a special group of automation
products.

Baud

Unit for the data transfer rate. One baud is equivalent to the
transmission of one bit per second (bps).

Baud rate

Unit of measure of the data transmission speed in bit/s.

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