Yokogawa EJX930A - Manual (Page 74)

<9. Parameter Lists>
9-10
IM 01C25T02-01E
Relative
Index
Index
AI1
Index
AI2
Index
AI3 Parameter Name Factory Default
Write
Mode
Explanation
3 4003 4103 4203 STRATEGY 1 AUTO The strategy field can be used to identify grouping
of blocks. This data is not checked or processed
by the block.
4 4004 4104 4204 ALERT_KEY 1 AUTO The identification number of the plant unit. This
information may be used in the host for sorting
alarms, etc.
5 4005 4105 4205 MODE_BLK AUTO AUTO The actual, target, permitted, and normal modes
of the block.
6 4006 4106 4206 BLOCK_ERR — — This parameter reflects the error status
associated with the hardware or software
components associated with a block. It is a bit
string, so that multiple errors may be shown.
7 4007 4107 4207 PV — — Either the primary analog value for use in
executing the function, or a process value
associated with it. May also be calculated from
the READBACK value of an AO block.
8 4008 4108 4208 OUT — Value =
MAN
The primary analog value calculated as a result of
executing the function.
9 4009 4109 4209 SIMULATE Disable AUTO Allows the transducer analog input or output to
the block to be manually supplied when simulate
is enabled. When simulation is disabled, the
simulate value and status track the actual value
and status.
10 4010 4110 4210 XD_SCALE Specified at the
time of order
O/S The high and low scale values, engineering units
code, and number of digits to the right of the
decimal point used with the value obtained from
the transducer for a specified channel.
11 4011 4111 4211 OUT_ SCALE Specified at the
time of order
O/S The high and low scale values, engineering units
code, and number of digits to the right of the
decimal point to be used in displaying the OUT
parameter and parameters which have the same
scaling as OUT.
12 4012 4112 4212 GRANT_DENY 0 AUTO Options for controlling access of host computers
and local control panels to operating, tuning and
alarm parameters of the block.
13 4013 4113 4213 IO_OPTS 0 O/S Options which the user may select to alter input
and output block processing
14 4014 4114 4214 STATUS_OPTS 0 O/S Options which the user may select in the block
processing of status
15 4015 4115 4215 CHANNEL AI1: 1
AI2: 2
AI3: 4
O/S The number of the logical hardware channel that
is connected to this I/O block. This information
defines the transducer to be used going to or from
the physical world.
1:PV
2:SV
3:TV
4:CAP_TEMP_VAL
5:AMP_TEMP_VAL
6:FLG_TEMP_VAL
16 4016 4116 4216 L_TYPE Specified at the
time of order
MAN Determines if the values passed by the
transducer block to the AI block may be used
directly (Direct) or if the value is in different units
and must be converted linearly (Indirect), or with
square root (Ind Sqr Root), using the input range
defined by the transducer and the associated
output range.
17 4017 4117 4217 LOW_CUT Linear: 0%
Square root: 10%
of OUT_SCALE
AUTO Limit used in square root processing. A value of
zero percent of scale is used in block processing
if the transducer value falls below this limit. This
feature may be used to eliminate noise near zero
for a flow sensor. The setting is in an engineering
unit of OUT_SCALE.
18 4018 4118 4218 PV_FTIME 0 (s) AUTO Time constant of a single exponential filter for the
PV, in seconds.
19 4019 4119 4219 FIELD_VAL — — Raw value of the field device in percent of thePV
range, with a status reflecting the Transducer
condition, before signal characterization (L_
TYPE) or filtering (PV_FTIME).