199
Parameters of AO Block
Function Block Parameters
4 5004 ALERT_KEY 1 Universal parameter used as a key to identify
the point from which an alert is issued;
normally used by an upper level system to
select alerts to provide to a particular operator
who covers a specific area of the plant.
5 5005 MODE_BLK O/S Universal parameter that indicates the block
operation conditions and is composed of actual
mode, target mode, permitted modes, and
normal mode.
6 5006 BLOCK_ERR — — Indicates the error statuses related to the block
itself.
7 5007 PV — — Indicates the primary analog value (or the
corresponding process value) used to execute
the specified actions, and the status of that
value.
8 5008 SP 0 Auto Indicates the setpoint for the block.
9 5009 OUT 0 Man Indicates the output value and its status.
10 5010 SIMULATE disable Used to simulate the output from the
transducer block; allows the user to set the
value and status input from the specified
channel.
11 5011 PV_SCALE 0-100% O/S High and low scale values when displaying the
PV parameter and the parameters which have
the same scaling as PV.
12 5012 XD_SCALE 0-100% O/S High and low scale values used with the value
obtained from or sent to the transducer block
for a specified channel.
13 5013 GRANT_
DENY
0 Option to control access from the host
computer and local control panel to tuning and
alarm parameters
14 5014 IO_OPTS 0 x 000A O/S Settings for the I/O processing of the block.
15 5015 STATUS_
OPTS
0 x 0000 O/S Defines block actions depending on block
status conditions.
16 5016 READBACK – — Readback signal of valve position from
transducer block.
17 5017 CAS_IN – Cascade input
Table 62 AO Block Parameters (Continued)
Relative
Index
Index Parameter
Name
Default
(factory
setting)
Write Description
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