User Manual

Logic Functions - Book 2
PROCESS ALARM BLOCK
8-46
8.6.2 Process Alarm Block Parameters
The mnemonics, valid values, and data types for all fields that may be selected for display
and/or be used in making softwiring connections are listed in Table 8-5. The following further
defines the Process Alarm block configuration parameters.
Block Type
PA This is Process Alarm Block type.
Occurrence
1 to 4096 Distinguishes a particular ‘instance’ of the process alarm block. The
number is automatically assigned.
Table 8-5. Process Alarm Block Attributes, Valid Values, Mnemonics, and Data Types
Field Name / Attribute Mnemonic Valid Values CWR Data Type
Attr
Version VERSION 1 – – R Long State 00
Block Length BLKLEN – – R Count 01
State
STATE RUN (0), HOLD (1), OFF (2),
DEBUG (3)
CWR Short State 02
Bad Inputs Accepted
BADINP NO (0), YES (1) CWR Discrete 03
Alarm Priority
PRIORITY 0 to 255 (0 = No
Unacknowledged Alarm)
CWR Long State 04
Trip Condition
TRIPCOND LESS (0), LESS EQUAL (1),
GREATER (2),
GREATER EQUAL (3),
EQUAL (4), or NOT
EQUAL (5)
CWR Short State 05
Suppress alarm calculation?
SUPPRES
S
NO (0), YES (1) CWR Discrete 06
Unacknowledged U FALSE (0), TRUE (1) – WR Discrete 07
Unacknowledged Quality UQ GOOD (0), BAD (1) – WR Discrete 08
Alarm Active A FALSE (0), TRUE (1) – WR Discrete 09
Active Quality AQ GOOD (0), BAD (1) – WR Discrete 10
Report alarm events?
REPORT NO (0), YES (1) CWR Discrete 11
Trip Value
TRIPVAL Local data for Floating Point,
Count, Date, Msec Time,
Discrete, Short State, or
Long State data types.
CWR Same as
ALARMINP
12
Alarm Input
ALARMINP LSP or local data CWR Floating Pt,
Count, Date,
Msec
Time,
Discrete,
Short
State,
Long
State,
13
Acknowledge Input
ACKINP NONE or LSP C – R Discrete 14
Hysteresis
HYST 0.000000 to any positive
Floating Point Value
CWR Floating Pt 15