Rockwell Automation 1404-M4_M5_M6_M8 Powermonitor 3000 User Manual, Firmware rev. 3.0 or LATER - Manual (Page 61)

Publication 1404-UM001F-EN-P - November 2009 61
Powermonitor 3000 Unit Operations Chapter 3
Out-of-the-box metering update rates are based on factory-default
configuration data and are listed in the
Meter Update Rate with
Factory Default Configuration table for all power monitor models and
communication options.
Factory default settings for configuration parameters can be found in
Appendix A .
Meter Update Rate with Factory Default Configuration
Model Communication
Option
000, 232,
RIO ENT,
CNT,
DNT
M4 60 ms 65 ms
M5 60 ms 65 ms
M6 65 ms 70 ms
M8 80 ms 85 ms