Rockwell Automation 1440-VDRP06-00RH XM-160/161/162 Direct Vibration Module - Manual (Page 136)

Publication GMSI10-UM025C-EN-P - August 2010
Glossary 128
Polled
DeviceNet communications method in which module sends data in response
to a poll request from a master device.
Program mode
The XM module is idle. Typically this occurs when the module configuration
settings are being updated with the XM Configuration program. In Program
mode, the signal processing/measurement process is stopped. The status of
the alarms is set to the disarm state to prevent a false alert or danger status.
Run mode
In Run mode, the module collects measurement data and monitors each
measurement device.
settling time
The amount of time it takes a measurement to reach 90% of the final value
given a step change in the input signal.
signal detection
Defines the method of conditioning or measuring a dynamic input signal. Peak
(0 to the peak voltage), Peak-Peak (minimum peak to maximum peak), and
RMS (square root of the mean of the square of the values) are the most
common methods of signal detection.
slave device
A device that receives and responds to messages from a Master device but
does not initiate communication. Slave devices include the XM measurement
modules, such as the XM-120 Dynamic Measurement module and the XM-320
Position module.
Strobe
See Bit-Strobe.
transducer
A transducer is a device for making measurements. These include
accelerometers, velocity pickups, displacement probes, and temperature
sensors.
trend
A set of records of one or more measurement parameter(s) collected at regular
intervals based on time or speed.