Yokogawa EJX930A - Manual (Page 76)

<9. Parameter Lists>
9-12
IM 01C25R03-01E
9.5 Al Function Block
Relative
Index
Index Parameter
Name
Factory
Default
Write
Mode
Explanation
AI1 AI2 AI3 AI4 AI5
0 4000 4100 4200 4300 4400 Block
Header
TAG:
“AI1” or “AI2” or
“AI3” or “AI4” or
“AI5”
Block Tag
= O/S
Information on this block such as Block Tag, DD
Revision, Execution Time etc.
1 4001 4101 4201 4301 4401 ST_REV — — The revision level of the static data associated
with the function block. The revision value will be
incremented each time a static parameter value in
the block is changed.
2 4002 4102 4202 4302 4402 TAG_DESC Null AUTO The user description of the intended application of
the block.
3 4003 4103 4203 4303 4403 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 4304 4404 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 4305 4405 MODE_BLK AUTO AUTO The actual, target, permitted, and normal modes of
the block.
6 4006 4106 4206 4306 4406 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 4307 4407 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 4308 4408 OUT — Value=
MAN
The primary analog value calculated as a result of
executing the function.
9 4009 4109 4209 4309 4409 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 4310 4410 XD_SCALE AI1, AI2, AI3:
Specified at the
time of order
AI4:
0 to 1000 kg/h
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 4311 4411 OUT_
SCALE
AI1, AI2, AI3:
Specified at the
time of order
AI4:
0 to 1000 kg/h
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 4312 4412 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 4313 4413 IO_OPTS 0 O/S Options which the user may select to alter input and
output block processing.
14 4014 4114 4214 4314 4414 STATUS_
OPTS
0 O/S Options which the user may select in the block
processing of status.
15 4015 4115 4215 4315 4415 CHANNEL AI1: 1
AI2: 2
AI3: 4
AI4: 5
AI5: 6
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:EXT_TEMP_VALUE
5:FLOW_VALUE 6:CAP_TEMP_VAL
7:AMP_TEMP_VAL 8:FLG_TEMP_VAL
16 4016 4116 4216 4316 4416 L_TYPE AI1:
Specified at the
time of order
AI2 to AI5:
Direct
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.