Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 User Manual
Page 303

Publication 1758-UM002D-EN-P - October 2010
Extension Modbus Protocol for DataSite Controllers (1758-FLO) 303
There is no event code for command number 18.
Command Number 19: Set Up the Gas Component Parameter
Use command number 19 to set up the gas component parameters for each
meter run.
49063
u_short
R
Relative density type
0: Relative density
1: Ideal density
49064
float
R
Relative density
49066
float
R
Reference pressure for measuring relative
density
49068
float
R
Reference temperature for measuring
relative density
49070
float
R
AGA8 gas heating value
49072
float
R
Reference temperature for gas heating
value
49074
u_short
R
Interval for collecting the components from
analysis instrument automatically (valid
only when automatic component analysis
instrument setting is enabled)
Return codes for command number 18
Return Code
Description
00
OK
01
Meter run is invalid
100
Pass code is incorrect
Other
Invalid
Parameters for command number 19
Address
Data Type
Attribute
Description
49025
u_short
RW
19
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
W
CH4
49037
float
W
N2
Parameters for command number 18 (Continued)
Address
Data Type
Attribute
Description