Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 193)

Publication 1757-UM006A-EN-P - May 2002
Standard Function Block Parameters A-13
Table A.34 DV_HI_LIM
Table A.35 DV_HI_PRI
Table A.36 DV_LO_ALM
Classification Simple Variable
Description Defines the high deviation alarm limit setting in engineering units.
FF Data Type Float
Range 0 to PV Span, + infinity
Usage C/Contained
Length 4
Valid Views VIEW_4
Storage Static
Remarks Initial value is + infinity
Classification Simple Variable
Description Defines priority of the high deviation alarm.
FF Data Type Unsigned 8
Range 0 to 63
Usage C/Alert Priority
Length 1
Valid Views VIEW_4
Storage Static
Remarks Initial value is 0
Classification Record
Description Identifies the status and time stamp associated with the low deviation alarm.
FF Data Type DS-71
Usage C/Alarm
Length 16
Storage Dynamic
Remarks Read Only
The Data type consists of data that describes floating point alarms. It uses the
following five elements.
• Unacknowledged
• Alarm State
• Time Stamp
• Subcode
• Value