Rockwell Automation 1440-PK02-05M2 XM-720 Machine Monitor - Manual (Page 59)

59 Publication GMSI10-UM001C-EN-E - June 2011
Glossary
alarm
An alarm alerts you to a change in a measurement. For example, an alarm can
notify you when the measured vibration level for a machine exceeds a
pre-defined value.
band
A frequency range, such as the frequency range between 1,800 and 3,200Hz.
bus off
A bus off condition occurs when an abnormal rate of errors is detected on the
Control Area Network (CAN) bus in a device. The bus-off device cannot
receive or transmit messages on the network. This condition is often caused by
corruption of the network data signals due to noise or baud rate mismatch.
current configuration
The current configuration is the most recently loaded set of configuration
parameters in the XM module’s memory. When power is cycled, the current
configuration is loaded with either the saved configuration (in EEPROM) or
the factory defaults (if there is no saved configuration). In addition, the current
configuration contains any configuration changes that have been downloaded
to the module since power was applied.
disarm state
See Program mode.
EEPROM
See NVS (Non-Volatile Storage).
Electronic Data Sheet (EDS) Files
EDS files are simple text files that are used by network configuration tools
such as RSNetWorx for DeviceNet to describe products so that you can easily
commission them on a network. EDS files describe a product device type,
revision, and configurable parameters.
failsafe
Failsafe means that when in alarm, the relay contacts are in their "normal,"
de-energized, or "shelf-state" positions. In other words, normally closed relays
are closed in alarm, and normally open relays are open in alarm. With failsafe
operation, a power failure equals an alarm.