Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 311)

Publication 1758-UM002D-EN-P - October 2010
Extension Modbus Protocol for DataSite Controllers (1758-FLO) 311
Command Number 23: Get Hourly History
Use command number 23 to get hourly history data.
Parameters for command number 23
Address Data Type Attribute Description
49025 u_short RW 23
49026 u_short W Return code
0: OK
49027 u_short W Meter run (0…7)
49028 u_int W Pass code for user
49030 u_short W Start date index (0…35).
0: Today
1: Yesterday
49031 u_short W Start hour index in the day
(0…23, 24…29)
49032 u_short W Number of records you want to
get. The maximum value is 8.
49033…49034 — — Reserved
Registers for record 1 of hourly history data
Address Data Type Attribute Description
49035 u_char[0] R Year (storage time)
u_char[1] Month (storage time)
49036 u_char[0] R Day (storage time)
u_char[1] Hour (storage time)
49037 u_char[0] R Minute (storage time)
u_char[1] Second (storage time)
49038 u_short R Unit of measurement
0: U.S.
1: Metric
49039 float R Average static pressure
49041 float R Average temperature
49043 float R Average differential
pressure/average pulse
49045 float R Density
49047 float R Accumulated run time
49049 float R Hourly base volume of flow rate
49051 float R Hourly flowing volume of flow
rate
49053 float R Hourly mass volume of flow rate