Rockwell Automation 1440-VLF02-01RA XM-121 Absolute Shaft Module - Manual (Page 137)

Publication GMSI10-UM014D-EN-P - May 2010
DeviceNet Objects 129
Instance Attributes
Table C.54 Transducer Object Instance Attributes
Attr ID
Access
Rule
Name Data Type Description Semantics
3 Get DC Bias REAL The measured average DC
bias of the transducer
signal in volts. Volts
4 Get Status BOOL Indicates whether a
transducer fault exists
(the measured DC Bias is
outside the range
specified by Fault High
and Low). 0 = No fault
1 = A transducer fault exists
5 Get/Set Sensitivity
Value REAL Value of the sensitivity of
the transducer in
millivolts per Sensitivity
Units.
6 Get/Set Sensitivity Units ENGUNIT Units of the denominator
of the Sensitivity Value. See DeviceNet Specification
Volume 1 Appendix K.
Valid values:
Channel 1
mils = 0800 hex
µm = 2204 hex
Channel 2
g =1504 hex
in/sec = 2B07 hex
mils = 0800 hex
mm/s = 0900 hex
Channel 3
Not applicable
7 Get/Set Fault High REAL The maximum expected
DC Bias voltage from the
transducer in volts. Volts
8 Get/Set Fault Low REAL The minimum expected
DC Bias voltage from the
transducer in volts. Volts
9 Get/Set Power Type USINT Indicates the type of
power supplied to the
transducer. 0 = No power supplied
1 = Constant current (IEPE
accelerometer)
13 Get/Set DC Bias Time
Constant REAL The time constant value
used for exponential
averaging of the DC Bias
value (a low pass
filter/output smoothing
filter). Seconds