Rockwell Automation Publication 1444-UM001D-EN-P - June 2018 509
CIP Objects Appendix A
Attributes 72…79 (Channel 0…3 DSP FFT) refer to the FFT function of the
DSP that is executed exclusively to calculate FFT Band data (Object 0x399
refers). The FFT calculated in the DSP is not served externally, stored
internally, or used for any other purpose than the FFT Band function.
Attribute Semantics
Auxiliary Modules
Bit-wise setting/indication of the expected/detected auxiliary modules.
'Detected' auxiliary modules is limited to expected modules that are detected.
Unexpected auxiliary modules are not communicated with and therefore are
always undetected.
Redundant Tacho Mode
When redundant tacho mode is enabled, the two configured tacho sources (for
tacho 0 & 1) serve as redundant sources for each other.
Example
• Tacho 0 is detected as being in a Not OK state, so it is automatically
switched to Tacho 1 source.
• If Tacho 0 source is OK, then Tacho 1 state is checked and if Not OK is
switched to Tacho 0 source
97 Get V Window Function SINT Definition of window
function used.
Window
98 Get V Number of Averages SINT FFT averaging. Averages
99 Get V Line Value Detection/Scaling SINT Allows line/bin values to
be returned scaled as Peak,
Peak to Peak, or RMS.
0: Peak
1: Peak to Peak
2: RMS
(default)
Table 258 - Class Attributes (continued)
Attribute ID Access Rule NV Name Data Type Description of Attribute Semantics of Values
Table 259 - Auxiliary Modules
Bit Description
0 Relay Output Module 0
1 Relay Output Module 1
2 Relay Output Module 2
3 4…20 mA Analog Output Module
4 Tacho Signal Conditioner
5…7 Reserved
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