Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 182)

Publication 1757-UM006A-EN-P - May 2002
A-2 Standard Function Block Parameters
Table A.3 ALARM_SUM
Table A.4 ALERT_KEY
Bxxx Blocks Table A.5 BAL_TIME
Classification Record
Description Detects the current alert status, unacknowledged states, and disable states of
the alarms associated with the block
FF Data Type DS-74
Usage C/Alarm Summary
Length 8
Valid Views VIEW_1, VIEW_3
Storage Dynamic
Remarks The data type summarizes 16 alerts using the following 4 elements.
•1 Current
•2 Unacknowledged
•3 Unreported
•4 Disabled
Classification Simple Variable
Description The identification number of the plant unit. This data may be used in the host
for sorting alarms.
FF Data Type Unsigned 8
Range 1 to 255
Usage C/Alert Key
Length 1
Valid Views VIEW_4
Storage Static
Remarks Initial value is 0
Classification Simple Variable
Description Specifies the time in seconds for the internal working value of Bias or Ratio to
return to the operator set value.
In PID block, specifies the time constant to be used to move the integral term
to obtain balance, when the output is limited and the mode is Auto, Cas, or
RCas.
FF Data Type Float
Range Positive
Usage C/Contained
Length 4