Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 301)

Publication 1758-UM002D-EN-P - October 2010
Extension Modbus Protocol for DataSite Controllers (1758-FLO) 301
Command Number 18: Read the Calculation Input Parameter
Use command number 18 to read the parameter settings, excluding the gas
component parameter settings, for one meter run.
Return codes for command number 17
Return Code Description
00 OK
01 Meter run is invalid
02 Disable/enable setting of meter run is invalid
03 Unit of measurement is invalid
04 Accumulate setting is invalid
05 Setting for the use of automatic component analysis instrument is
invalid
06 Calculation type is invalid
07 Algorithm selected for the calculation of the compressibility factor
is invalid
08 Pressure type is invalid
09 Tap location is invalid
10 Orifice material is invalid
11 Tube material is invalid
12 Relative density type is invalid
13 Interval for collecting the components from analysis instrument
automatically is invalid
100 Pass code is incorrect
Other Invalid
Parameters for command number 18
Address Data Type Attribute Description
49025 u_short RW 18
49026 u_short R Return code
49027 u_short W Meter run (0…7)
49028 u_int W Pass code for user
49030…49034 — — Reserved
49035 u_short R Whether the meter run is enabled
0: Disable
1: Enable