Software User Manual FRN 1.2 Owner manual

Publication 1758-UM002D-EN-P - October 2010
330 Enron Modbus Protocol for the 1758-FLO DataSite Controller
The following tables list all the floating point variables used by Enron Modbus
in the DataSite controller.
Meter Run 0 Data Variables
Current value
Register Description Access
7001 Current temperature RO
7002 Current static pressure RO
7003 Current differential pressure (AGA-3) RO
Instantaneous flow variables
Register Description Access
7004 Flow volume rate RO
7005 Flow mass rate RO
7006 Average EXT for the hour (AGA-3 1990 only)
(EXT is the square root of the product of static pressure
and differential pressure.)
RO
7007 Average uncorrected flow volume for the hour (AGA-7
only)
RO
Force variables
Register Description Access
7008 Forced temperature RO
7009 Forced static pressure RO
7010 Forced differential pressure (AGA-3 only) RO
Compressibility variables
Register Description Access
5001 Total accumulated run time. Unit is seconds. RO
5002 Total flow time of the previous day. Unit is seconds. RO
5003 Total flow time of the current day. Unit is seconds. RO
5004 Total flow time of the previous hour. Unit is seconds. RO
5005 Total flow time of the current hour. Unit is seconds. RO
5006 Total accumulated mass flow quantity. RO