Attributes - Honeywell SLG 700 Option Manual

Attributes

Supported
The block supports the following modes:
Modes



Alarm Types The block supports standard block alarms, (see section 3.2).
Status If an input has status as Uncertain or Bad, then the limit status of the
Handling
inputs is ignored, as is the sub status. Either Good(C) or Good (NC) is
accepted as Good.
The increment calculated from an input has an internal status that is
either Good or Bad.
If the input status is Good(C) or Good (NC), the increment status is
Good.
If the input status is Uncertain, the increment status is Bad, and the last
Good value is used unless the option Use Uncertain is set in
INTEG_OPTS, and then the increment status is Good and the new value
is used.
If the input status is Bad, the increment status is Bad, and the last Good
value is used unless the option Use Bad is set in INTEG_OPTS, and
then the increment status is Good and the last Good value is used.
The two increments are added together, and the resulting status is the
worst of the two. The option Add zero if Bad in INTEG_OPTS causes the
net increment to be zero if its status is Bad.
The percentage of Bad or Uncertain and Bad counts can be determined
by calculating the value of PCT_INCL from Rtotal and Atotal. As Atotal is
the sum of increments with Good and Bad status, and Rtotal is the sum
of increments with Bad status, Atotal minus Rtotal is exactly equal to the
total of increments with Good status. If most significant part (msp) and
Atotal is not zero then the percent of Good values may be calculated as:
PCT_INCL = 100 * ( 1 - (msp of Rtotal) / (msp of Atotal) )
If Atotal is zero, then PCT_INCL shall be 100 if Rtotal is also zero or 0 if
Rtotal is not zero.
If the block mode is AUTO, if PCT_INCL ≥ GOOD_LIM, the status of
OUT is Good, or else if PCT_INCL ≥ UNCERT_LIM, the status of OUT is
Uncertain, or else the status of OUT is Bad.
If the block mode is Manual, then the status of OUT, OUT_PTRIP, and
OUT_TRIP is Good (NC) constant when then status option Uncertain, if
MAN is not selected. If this status option is selected and the block mode
is manual, then the status of these three outputs is for Uncertain
constant, and no limits are applied to the output.
Page 98 FOUNDATION Fieldbus Option User's Manual
AUTO (Automatic)
MAN (Manual)
OOS (Out of Service).
Rev.5