Alarms with the prover function – Rockwell Automation 1756-CFM ControlLogix Configurable Flowmeter Module User Manual
Page 49
49
Rockwell Automation Publication 1756-UM010B-EN-P - December 2011
Configurable Flowmeter Module Features and Operational Modes 49
Net Rate
Use Net Rate in a fashion similar to Gross Rate. The key difference between
Gross Rate and Net Rate is that Net Volume also uses a user-defined
compensation factor (i.e. AGA 7 or Logix compensation) to convert net
counts to net rate units.
Prover Status
Prover Status notifies you of the following prover states:
Prover not active
Prover waiting for 1st start
Prover waiting for 1st stop
Prover waiting for 2nd start
Prover waiting for 2nd stop
Prover complete
Alarms with the Prover Function
The CFM module offers the following alarms when operating with the Prover
function:
Overflow Alarm
Overrange Alarm
Overspeed Alarm
Acceleration Alarm
You must enable each alarm. When any of the alarms occur, it is latched and
remains on until you reset the alarm. (Toggle the alarm enable bit to reset the
alarm.)
Sample Configuration for Totalizer Mode Prover Function
To see a sample configuration for a 1756-CFM module using totalizer mode
prover function, including the use of all the features mentioned in the previous
section, see
IMPORTANT
For more information on setting values in the Module
Tags, see