Rockwell Automation 1771-CFM,D17716.5.99 CONFIGURABLE FLOWMET - Manual (Page 36)

4–2 Configure the CFM Module
Publication 1771Ć6.5.99 - December 1995
BTW Configuration Block
Word(s) ➀
Bit ➁
Word(s) ➀
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 and Output 0 Trigger & Select
2 Output 1 Trigger Tie Output 1 to Channel Output 0 Trigger Tie Output 0 to Channel
Output 3 and Output 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 of Pulses 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 ➂ Frequency Scaler Divisor ➂
11, 21, 31, 41 Total Scaler Multiplier ➂
12, 22, 32, 42 Total Scaler Divisor ➂
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)
➀ Valid BTW lengths are: 0, 1, 2, 3, 4, 14, 24, 34, 44, 48, 52, 56, 60.
➁ ALL numeric values are in binary.
➂ When scaling is used, all outputs are still controlled by the actual value not the scaled value.
BTW Word Description Key
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Bits
Mode(s) that use these bits.
Description of what these bits are used for.
word #
Mode abbreviations:
Totalizer = T
Nonresettable Totalizer = NRT
HighĆresolution Frequency = HR
Direction Sensor = DS