104 Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Chapter 3 Configure the 1444 Dynamic Measurement Module
Speed (0) maximum Checked (1)
Unchecked (0)
Check this parameter to include the Speed0 max member to the input tag.
Speed maximum is the maximum observed speed measurement since last reset. This value is the maximum Speed,
not Factored Speed. So it excludes any multiplier that can be specified on the Speed page.
The maximum speed value does not update when the tachometer is in fault. See “Behavior” for the Dynamix Tacho
and Speed Measurement Object, page 384, for further information.
Tag Member: Speed0 max
Speed (1) maximum Checked (1)
Unchecked (0)
Check this parameter to include the Speed1 max member to the input tag.
Speed maximum is the maximum observed speed measurement since last reset. This value is the maximum Speed,
not Factored Speed. So it excludes any multiplier that can be specified on the Speed page.
The maximum speed value does not update when the tachometer is in fault. See “Behavior” for the Dynamix Tacho
and Speed Measurement Object, page 384, for further information.
Tag Member: Speed1 max
Speed (0) Rate of Change Checked (1)
Unchecked (0)
Check this parameter to include the Speed0RateOfChange member to the input tag. This value is the Rate of Change of
the Speed, not of the Factored Speed. So it excludes any multiplier that can be specified on the Speed page.
Tag Member: Speed0RateOfChange
Speed (1) Rate of Change Checked (1)
Unchecked (0)
Check this parameter to include the Speed1RateOfChange member to the input tag. This value is the Rate of Change of
the Speed, not of the Factored Speed. So it excludes any multiplier that can be specified on the Speed page.
Tag Member: Speed1RateOfChange
SMax pk-pk Checked (1)
Unchecked (0)
Check this parameter to include the SMAX magnitude and phase members for the selected channel pair to the input
tag.
There are several different ways the SMAX measurement can be made. The 1444 performs the SMAX measurement per
standard ISO 7919/1, Annex A “Derivation of Measurements” Method A.
Shaft Absolute pk-pk Checked (1)
Unchecked (0)
Check this parameter to include the Shaft Absolute pk-pk member for the selected channel pair to the input tag.
Differential Expansion Checked (1)
Unchecked (0)
Check this parameter to include the Differential Expansion member for the selected channel pair to the input tag.
If the channel type is DC, then only one DC member can be selected (Differential Expansion, DC Proportional, or Rod
Drop). The mode for calculating the Differential Expansion measurement can be set to either Axial (Complimentary) or
Radial (Ramp). Use the Measurement Type control on the Hardware Configuration Page
to select the mode.
Overall (n) Checked (1)
Unchecked (0)
Check this parameter to include the Overall (n) member for the selected channel to the input tag.
Table 16 - Input Data
Parameter Values Comments
Channel Pair Tag Member
0, 1 Ch0_1SMAXMAg
2, 3 Ch2_3SMAXMAg
Channel Pair Tag Member
0, 1 Ch0_1Shaft AbsolutePk_Pk
2, 3 Ch2_3Shaft AbsolutePk_Pk
Channel Pair Tag Member
0, 1 Ch0_1DifferentialExpansion
2, 3 Ch2_3DifferentialExpansion
Channel Tag Member
0 Ch0Overall[n]
1 Ch1Overall[n]
2 Ch2Overall[n]
3 Ch3Overall[n]
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