Allen-Bradley 1444-TSCX02-02RB User Manual page 468

Appendix A CIP Objects
468
FFT Window Options
The following window processing options are selectable.
Index
0x00 (0)
0x01 (1)
0x02 (2)
0x03 (3)
Table 203 - Averages
Index
0x00 (0)
0x01 (1)
0x02 (2)
0x03 (3)
0x04 (4)
0x05 (5)
0x06 (6)
0x07 (7)
0x08 (8)
Table 204 - Common Services
Service Implementation
Code
Class Instance
0x0E x x
Table 205 - Object Specific Services
Service Implementation
Code
Class Instance
0x4B - -
0x4C - x
0x4C CM Record Request
Normal CM data is retrieved using a series of request/response unconnected
messages. One service is used to both start and continue with a session. The
first request initiates the session and subsequent requests return values that are
returned by the service. When the packet count down value returned reaches 0,
the session is completed.
The instance and attribute can be set to 1, but they are ignored.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
FFT Window FFT Lines with Amplitudes Set to Zero
Normal/Rectangular DC line only
Flat-Top DC + 4 lines
Hanning DC + 1 line
Hamming DC + 1 line
Number of Averages
1
2
3
6
12
23
45
89
178
Service Name Description of Service
Get Attribute Single Returns the contents of the specified attribute.
Service Name Description of Service
Reserved Reserved
Normal CM Data Data types consisting of multiple bytes are
Record Request transferred in little-endian format (least
significant byte first). Also, a data communication
session starts at the first service request and ends
after the final response of the exchange or after
timeout of 30 seconds.