Yokogawa EJX115A - Manual (Page 68)

<9. Parameter Lists>
9-8
IM 01C25T04-01EN
9.4 AI Function Block
Relative
Index
Index Parameter
Write
Mode
Initial Value Explanation
0 16 BLOCK_OBJECT — — Information on this block such as Block Tag, DD Revision,
Executiion Time etc.
1 17 ST_REV — 0 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 18 TAG_DESC AUTO Space The user description of the intended application of the
block.
3 19 STRATEGY AUTO 0 The strategy field can be used to identify grouping of blocks.
This data is not checked or processed by the block.
4 20 ALERT_KEY AUTO 0 The identification number of the plant unit. This information
may be used in the host for sorting alarms, etc.
5 21 TARGET_MODE AUTO AUTO Set the Target of block mode (MODE_BLK) to Auto, Man or
O/S according to the write Mode of the parameter to be set
or changed.
6 22 MODE_BLK — AUTO The mode parameter is a structured parameter composed
of the actual mode, the normal mode, and the permitted
mode.
7 23 ALARM_SUM — — The current alarm status associated with the function block
8 24 BATCH AUTO — This parameter is intended to be used in Batch applications
in line with IEC 61512.
10 26 OUT MAN — This parameter contains the current measurement
value from Transducer Block or configuration adjusted
engineering unit and the belonging state in AUTO MODE.
OUT contains the value and status set by an operator in
MAN MODE.
11 27 PV_SCALE O/S — Conversion of the Process Variable into percent using the
high and low scale value.
12 28 OUT_SCALE O/S — Scale of the Process Variable. This parameter contains the
values of the lower limit and upper limit effective range, the
code number of the engineering unit of Process Variable
and the number of digits to the right of the decimal point.
13 29 LIN_TYPE O/S 0 Type of linearization.
0: no linearization
10: Square root
14 30 CHANNEL O/S AI1:
Primary Value
AI2:
Static Pressure
(H)
AI3:
Capsule
Temperature
Reference to the active Transducer Block which provides
the measurement value to the Functiion Blocks.
16 32 PV_FTIME AUTO 0.000 Time constant of a signal exponential filter for the PV, in
seconds.
17 33 FSAFE_TYPE AUTO 1 Defines reaction of device, if a fault is detected.
18 34 FSAFE_VALUE AUTO 0 Defaut value for the OUT parameter, if sensor or sensor
electronic fault is detected. The unit of this parameter is the
same as that for the OUT one.
19 35 ALARM_HYS AUTO 0.5 Amount the PV must return within the alarm limits before
the alarm condition clears. Alarm Hysteresis is expressed in
engineering unit.
21 37 HI_HI_LIM AUTO +1.#INF Value for upper limit alarms.
23 39 HI_LIM AUTO +1.#INF Value for upper limit warnings.
25 41 LO_LIM AUTO -1.#INF Value for lower limit warnings.
27 43 LO_LO_LIM AUTO -1.#INF Value for lower limit alarms.
30 46 HI_HI_ALM — — State of the upper limit of alarms.
31 47 HI_ALM — — State of the upper limit of warnings.
32 48 LO_ALM — — State of the lower limit of warnings.
33 49 LO_LO_ALM — — State of the lower limit of alarms.
34 50 SIMULATE AUTO Disabled For commissioning and test purposes the input value from
the Transducer Block in the Analog input Function Block AI-
FB can be modified. That means that the Transducer and
AI-FB will be disconnected.
35 51 OUT_UNIT_TEXT — — Not used for the transmitter