Appendix b, rev 5.1, Appendix b – Det-Tronics EQP Fire and Gas Detection/Releasing System SAFETY MANUAL User Manual
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5.1
95-8599
Gate Name
Description
SIL
ABS
Absolute Value. The values can be integer, double or float. The result
will be of the same type as the input value; e.g. –23 = 23
Yes for all but
floating-point
values
ACCALM
Access Alarm. This function is used to provide an interface to the
Controller’s alarm list. This can be used to read alarm information from
the Controller’s alarm list.
No
ADD
Addition. The values can be Boolean, integer, double or float. All items
must be of the same type. ADD reads all the values, performs an ADD
function and writes the result.
Yes for all but
floating-point
values
ALMTGR
Add an Alarm to the Alarm List. This function is used to add an alarm
to the Controller’s alarm list. This can be used to trigger and log and
display alarms that are initiated by user logic.
No
AND
AND. AND reads all the values, performs a bitwise AND function and
writes the result.
Yes
ANDW
AND Word. The values can be integer or double. All values must be of
the same type and the result will be of the same type. All of the bits of
the word are operated on.
Yes
AVG
Average. The input values can be integer, double or float. All values
must be of the same type and the result will be of the same type.
Average is the value obtained by dividing the sum of the value by the
number of values. (8.0 + 7.0 + 8.0) / 3 = 7.6.
Yes for all but
floating-point
values
BINT
Boolean to Integer. The input is a Boolean. If the input is False the
output will be a zero and if the input is True the output will be a one.
Yes
BTW
Between. The input values can be integer, double or float. All items
must be of the same type. There are three input items. Two are the
comparison values and the third is the compare item. If the compare
item is equal to or between the comparison values, a Boolean True is
output, if not a Boolean False is output; e.g. if the <= input is 100 and
the IN input is 50 and the >= input is 0 then the output would be True.
Yes for all but
floating-point
values
Appendix B
eQp COnTROLLeR LOGiC GATe TABLe
USeR-dOCUMenTATiOn
The “SIL” column indicates if the gate is suitable for use with alarm processing with a 61508 approved system. Gates
that utilize stored values which are not duplicated, or that depend on the floating-point or string libraries are not safety
rated. For detailed information about a gate, refer to the help file for that gate in the S³ EQP logic window.
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