Rockwell Automation 1771-CFM Config. Flowmeter Installation Instructions - Manual (Page 14)

Configurable Flowmeter Module 14
Publication 1771ĆIN043B-EN-P - July 2002
BTW WordAssignments
Word(s) À
Bit Á
Word(s) À
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Block ID & Resets
1 Header Prover Run Initialize Overflow Reset Total Reset
Output 1 andOutput 0 Trigger & Select
2 Output 1 Trigger Tie Output 1 to Channel Output 0 Trigger Tie Output 0 to Channel
Output 3 andOutput 2 Trigger & Select
3 Output 3 Trigger Tie Output 3 to Channel Output 2 Trigger Tie Output 2 to Channel
Input Channel Operating Mode
4 Channel 3 Channel 2 Channel 1 Channel 0
Input Channel Configuration
Channel 0 (words 5Ć14) Channel 1 (words 15Ć24) Channel 2 (words 25Ć34) Channel 3 (words 35Ć44)
5, 15, 25, 35
Frequency
in 10ths
Bandwidth
Limit
Sampling
Termination
4 x
High Hz
Prover
Type
ЙЙЙЙ
Й ЙЙ Й
ЙЙЙЙ
Debounce
Filtering
Acceleration Calculation Time
6, 16, 26, 36 Minimum Frequency Sampling Time
7, 17, 27, 37 Number ofPulses to Terminate Sampling
8, 18, 28, 38 Highest Allowable Frequency
9, 19, 29, 39 Acceleration Alarm Value (what rate to trigger on)
10, 20, 30, 40 Frequency Scaler Multiplier  Frequency Scaler Divisor Â
11, 21, 31, 41 Total Scaler Multiplier Â
12, 22, 32, 42 Total Scaler Divisor Â
13, 23, 33, 43 Rollover Value Ċ Most Significant Digit (0Ć999 x 10,000)
14, 24, 34, 44 Rollover Value Ċ Least Significant Digit (0Ć9,999)
Output Configuration
Output 0 (words 45Ć48) Output 1 (words 49Ć52) Output 2 (words 53Ć56) Output 3 (words 57Ć60)
45, 49, 53, 57 Output ON value Ċ Most Significant Digit (0Ć999 x 10,000)
46, 50, 54, 58 Output ON value Ċ Least Significant Digit (0Ć9,999)
47, 51, 55, 59 Output OFF value Ċ Most Significant Digit (0Ć999 x 10,000)
48, 52, 56, 60 Output OFF value Ċ Least Significant Digit (0Ć9,999)
À Valid BTW lengths are: 0, 1, 2, 3, 4, 14, 24, 34, 44, 48, 52, 56, 60.
Á ALL numeric values are in binary.
 When scaling is used, all outputs are still controlled by the actual value not the scaled value.
For detailed BTW descriptions,
see chapter 4, (publication
1771Ć6.5.99).