11. Appendix B 
11.1. Standard Function Block Parameters 
R400  Experion PKS Series A Fieldbus Interface Module User's Guide  455 
July 2010  Honeywell 
Remarks 
Read Only 
The Data type consists of data that describes floating point 
alarms. It uses the following five elements.  
    1 Unacknowledged 
    2 Alarm State 
    3 Time Stamp 
    4 Subcode 
    5 Value 
 
 
LO_LIM 
 
Classification 
Simple Variable 
Description 
Defines the setting for the low alarm in engineering units.  
FF Data Type 
Float 
Range 
- Infinity, PV_SCALE 
Usage 
C/Contained 
Length 
4 
Valid Views 
VIEW_4 
Storage 
Static 
Remarks 
Initial value is - Infinity 
 
LO_LO_ALM 
 
Classification 
Record 
Description 
Represents the status of the low low alarm and its 
associated time stamp.  
FF Data Type 
DS-71 
Range 
 
Usage 
C/Alarm