Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 327)

Publication 1758-UM002D-EN-P - October 2010
Enron Modbus Protocol for the 1758-FLO DataSite Controller 327
General input configuration variables
Register Description Access
3053 Input unit type.
Bit 3: 0 = US, 1 = Metric R/W
3054 Flow calculation type.
0 = AGA-3 (1992), 1 = AGA-7 R/W
3055 Compressibility calculation type
0 = Gas analysis, 1 = HR-GR-COR, 2 = GR-CO2-N2 R/W
3056 Static pressure tap location
0 = upstream, 1 = downstream R/W
3057 Pressure type
0 = gauge, 1 = absolute R/W
3058 Time duration for low flow pulse limit check (in seconds).
Range: 0…5 s (AGA-7 only) R/W
3059 Calculation interval R/W
Instantaneous input register address
Register Description Access
3060 Temperature input register Modbus address R/W
3061 Static pressure input register Modbus address R/W
3062 Differential pressure input register Modbus address R/W
AGA-3 configuration variables
Register Description Access
3063 Orifice material
0 = stainless, 1 = monel, 2 = carbon steel R/W
3064 Tube material
0 = stainless, 1 = monel, 2 = carbon steel R/W
Instantaneous input register data type
Register Description Access
3065 DP register data type
0 = ushort, 1 = float R/W
3066 P register data type
0 = ushort, 1 = float R/W
3067 T register data type
0 = ushort, 1 = float R/W