ProSoft Technology MVI56-AFC - Manual (Page 248)

MVI56-AFC Sample Logic MVI56-AFC ♦ ControlLogix Platform
User Manual Liquid and Gas Flow Computer
Page 248 of 316 ProSoft Technology, Inc.
February 25, 2011
The following shows the structure of each archive. The first 10 words are
common for all archives. The rest of the archive structure will depend on the
meter type or product group:
Pre-defined Overhead
Start Offset End Offset Data Type Description
00 01 Dt Closing timestamp of archive
02 Wd Flowing period
03 Bm Cumulative meter alarms
04 Bm Cumulative status
05 Wd Event counter
06 07 Dw Flowing period, seconds
08 09 Dt Opening timestamp of archive
Orifice Meter with Gas Product
Start Offset End Offset Data Type Description
10 11 Acc Accumulator totalizer, net/liqeqv
12 13 Fp Accumulator residue, net/liqeqv
14 15 Fp Flow rate, net/liqeqv
16 17 Fp Temperature, CU
18 19 Fp Pressure, CUg
20 21 Fp Differential pressure, CU
22 Wd Relative density 15øC/15øC, e-4
23 Wd Compressibility, reference, e-4
24 Wd Compressibility, flowing, e-4
25 Wd Fpv, e-4
26 Wd Velocity of approach factor, Ev, e-4
27 Wd Expansion factor, Y, e-4
28 Wd Coefficient of discharge, Cd, e-4
29 Wd Reserved
Pulse Meter with Gas Product
Start Offset End Offset Data Type Description
10 11 Acc Accumulator totalizer, net/liqeqv
12 13 Fp Accumulator residue, net/liqeqv
14 15 Fp Flow rate, net/liqeqv
16 17 Fp Temperature, CU
18 19 Fp Pressure, CUg
20 21 Fp K-Factor
22 23 Fp Meter Factor
24 Wd Relative density 15øC/15øC, e-4
25 Wd Compressibility, reference, e-4
26 Wd Compressibility, flowing, e-4
27 Wd Fpv, e-4
28 29 Wd Reserved