Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 307)

Publication 1758-UM002D-EN-P - October 2010
Extension Modbus Protocol for DataSite Controllers (1758-FLO) 307
Command Number 20: Read the Gas Component Parameter
Use command number 20 to read the settings of the gas components for each
meter run.
Parameters for command number 20
Address Data Type Attribute Description
49025 u_short RW 20
49026 u_short R Return code
0: OK
49027 u_short W Meter run (0…7)
49028 u_int W Pass code for user
49030…49034 — — Reserved
49035 float R CH4
49037 float R N2
49039 float R CO2
49041 float R C2H6
49043 float R C3H8
49045 float R H2O
49047 float R H2S
49049 float R H2
49051 float R CO
49053 float R O2
49055 float R i-C4H10
49057 float R n-C4H10
49059 float R i-C5H12
49061 float R n-C5H12
49063 float R n-C6H14
49065 float R n-C7H16
49067 float R n-C8H18
49069 float R n-C9H20
49071 float R n-C10H22
49073 float R HE
49075 float R AR