Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual - Manual (Page 24)

Publication 1797-6.5.3 - March 2006
1-10 About the FLEX Ex HART Analog Modules
HART Command Tags
The response from the HART command routines is located in their associated
reply tags:
• CMDx_Status (x is the specific command)
• CMDx_Reply (x is the specific command)
This tag is only returned when the specific HART command has data in
its reply. The CMDx_Reply tag contains the HART response
reformatted to their associated data type.
Table 1.1 CMDx_Status Tags
Tag Name Description Data Type
CMDx_Status.Started Indicates when the command is in
process BOOL
CMDx_Status.Done Indicates when the command has
completed without error
CMDx_Status.Error Indicates when the command has
completed with error
CMDx_Status.Error_Code If the CMDx_Status.Error bit is set,
the associated error code is placed
here INT
CMDx_Status.Cmd_Performed If the CMDx_Status.Done bit is set,
the tag containing the HART
command performed is placed here
Table 1.2 CMD3_Reply Tags Example
Tag Name Description Data Type
CMD3_Reply.Current_mA The measured current value REAL
CMD3_Reply.PV_Units_Code The units code for the primary value INT
CMD3_Reply.Primary_Value The primary value REAL
CMD3_Reply.SV_Units_Code The units code for the secondary
value INT
CMD3_Reply.Secondary_Value The secondary value REAL
CMD3_Reply.TV_Units_Code The units code for the third value INT
CMD3_Reply.Third_Value The third value REAL
CMD3_Reply.FV_Units_Code The units code for the fourth value INT
CMD3_Reply.Fourth_Value The fourth value REAL