Rockwell Automation 1758-RTU202 DataSite Software User Manual FRN 1.2 - Manual (Page 212)

Publication 1758-UM002D-EN-P - October 2010
212 DataSite Flow Configuration Utility (DS FloConfig)
Here is an example of a HART configuration list:
Understand HART Commands
Some of the variables read from HART equipment are 32-bit floating-point
values. Every floating-point value is stored in two continuous data registers.
The higher 16 bits of this value will be stored in the register with a higher
address and the lower 16 bits of this value will be stored in the register with a
lower address. For example, if a 32-bit double precision IEEE floating point
number, such as 1234.5678 is to be stored, two registers, such as register 40108
and register 40109 can be combined to store the number. In hexadecimal,
1234.5678 is 449A 552B. The DataSite controller will store 449A in register
40109 and 522B in register 40108.
HART State Addr Register for storing HART equipment state returned.
Effective range is 40003…49999 for 1758-RTU controllers and
40003…47999 for 1758-FLO controllers.
Err_Cnt Number of times an error occurs.
After the HART scan block is configured, if there is no connection
with the slave device or if communication fails, this value will be
incremented by 1 after each scan cycle. This value is updated
whenever you click Upload.
Err_State Error state of HART scan block configuration.
If the Err_State value is 1, it means the communication has failed.
A value of 0 indicates that the communication is OK.
IMPORTANT
HART scan data blocks are configured in sequence and
each block has a corresponding number. The maximum
number of modules is 128.
When one data block is an empty block, all the blocks
configured after this empty data block will be invalid.
Description of HART block parameters (Continued)
Header Description