WIKA T53 - Manual (Page 29)

9
Equations: . .
. FIELD_VAL .= .100*(channel .value .- .EU@0%) ./ .(EU@100% .- .EU@0%) .[XD_SCALE] . .
. Direct: .PV .= .channel .value . .
. Indirect: .PV .= .(FIELD_VAL/100) .* .(EU@100% .- .EU@0%) .+ .EU@0% .[OUT_SCALE] . .
. Ind .Sqr .Root: .PV .= .sqrt(FIELD_VAL/100) .* .(EU@100% .- .EU@0%) .+ .EU@0% .[OUT_SCALE] .
3 .5 .Supported .Modes
O/S, .Man .and .Auto .
3 .6 .To .enable .the .Simulation .mode
The .hardware .lock .for .the .simulation .mode .is .a .reed .switch .
mounted .in .the .T53 .transmitter . .The .reed .switch .can .be .activat-
ed .with .a .special .designed .magnet .which .is .mounted .on .the .bus .
connection .terminals .pin .no . .1 .and .pin .no . . . .Magnet .type .no . .
1557596 .can .be .ordered .at .WIKA . .
.
.
3 .7 .Alarm .Types
Standard .block .alarm .plus .standard .HI_HI, .HI, .LO, .and .LO_LO .alarms .applied .to .OUT .
3 .8 .Mode .Handling
Standard .transition .in .and .out .of .O/S . .
Standard .transition .from .Man .to .Auto .and .back . .
3 .9 .Status .Handling
The .status .values .described .in .Output .Parameter .Formal .Model .of .Part .1 .apply, .with .the .ex-
ception .of .the .control .sub-status .values . .The .Uncertain .- .EU .Range .Violation .status .is .always .
set .if .the .OUT .value .exceeds .the .OUT_SCALE .range, .and .no .worse .condition .exists . .The .fol-
lowing .options .from .STATUS_OPTS .apply, .where .Limited .refers .to .the .sensor .limits: .
. Propagate .Fault .Forward .
. Uncertain .if .Limited .
. BAD .if .Limited .
. Uncertain .if .Man .mode
3 .10 .Initialisation
The .PV .filter .must .be .initialised, .but .other .than .that, .no .special .initialisation .is .required . .This .
is .a .pure .calculation .algorithm . .
3.11 Analogue Input Blocks Parameter List, Fieldbus Foundation
Parameter
Rel.
Index Description
Type Store Size
byte
RO /
R/W Min Max Default
ST_REV 1
The .revision .level .of .the .static .data .associated .with .the .func-
tion .block . .To .support .tracking .changes .in .static .parameter .
attributes, .the .associated .block’s .static .revision .parameter .will .
be .incremented .each .time .a .static .parameter .attribute .value .is .
changed . .Also, .the .associated .block’s .static .revision .parameter .
may .be .incremented .if .a .static .parameter .attribute .is .written .
but .the .value .is .not .changed .
Un-
signed .
16
SRC  RO 0
TAG_DESC  The .user .description .of .the .intended .application .of .the .block .
Octet .
String
SRC 3 R/W Spaces
STRATEGY 3
The .strategy .field .can .be .used .to .identify .grouping .of .blocks . . .
This .data .is .not .checked .or .processed .by .the .block .
Un-
signed .
16
SRC  R/W 0
ALERT_kEY 4
The .identification .number .of .the .plant .unit . .This .information .
may .be .used .in .the .host .for .sorting .alarms, .etc .
Un-
signed .
8
SRC 1 R/W 1 55 0
MODE_BLk 5 The .actual, .target, .permitted, .and .normal .modes .of .the .block . DS-69 Mix 4 *
1, .1, .5, .
16
BLOCk_ERR 6
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 .
Bit .
String
D  RO
PV 7
Either .the .primary .analog .value .for .use .in .executing .the .func-
tion, .or .a .process .value .associated .with .it . .May .also .be .calcu-
lated .from .the .READBACK .value .of .an .AO .block .
DS-65 D 5 RO