ABB JDF300, Инструкция по эксплуатации

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J DF 3 0 0 |
FI EL D I N D I C ATO R | O I/J D F 3 0 0 - EN R E V. B 29
Block Mapping
Idx Parameter Description / Range / Selections / Notes
0 BLOCK_OBJ In the Block Object data structure, there are different items describing the block characteristics. Execution period,
Number of parameters in the block, the DD Revision, Profile Revision, View Objects characteristics and so on
1 ST_REV
The revision level of the Static data associated with the Function Block. The revision level is incremented each time a
static parameter value (S – under Storage) in the block is changed.
2 TAG_DESC The user description of the intended application of the block
3 STRATEGY The strategy field can be used to identify grouping of blocks. This data is not checked or processed by the block.
4 ALERT_KEY The identification number of the plant unit. This information may be used in the host for sorting alarms, etc.
5 MODE_BLK
TARGET AUTO / MAN / CAS / RCAS / ROUT / OOS The selectable modes by the operator.
ACTUAL The mode the block is currently in.
PERMITTED AUTO / MAN / OOS / IMAN / CAS / RCAS / ROUT / LO Allowed modes that the target may take on
NORMAL AUTO / CAS The common mode for the Actual.
6 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 PV The process variable used in block execution, expressed in
PV_SCALE
unit Code
8 SP
The analog Set Point value of this block, expressed in
PV_SCALE Unit Code
Acceptable value: PV_SCALE +/- 10%
9 OUT
The block output value calculated as a result of the block
execution, expressed in
OUT_SCALE unit code
Writeable only if MODE_BLK .ACTUAL = MAN
10 PV_SCALE
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 PV parameter and parameters which have the same scaling as PV.
11 OUT_SCALE
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 GRANT_DENY
Options for controlling access of host computer and local control panels to operating, tuning and alarm parameters
of the block.
13 CONTROL_OPTS
Options the user may select to alter the calculation done in a control loop
Bit 0 Bypass Enable
Bit 1 SP-PV Track in Man
Bit 2 SP-PV Track in ROut
Bit 3 SP-PV Track in LO or IMan
Bit 4 SP Track retained target
Bit 5 Direct Acting
Bit 6 Track if Bad TRK_IN_D
Bit 7 Track Enable
Bit 8 Track in Manual
Bit 9 Use PV for BKCAL_OUT
Bit 12 Obey limits if CAS or RCAS
Bit 13 No out limits in Manual
14 STATUS_OPTS
Options which the user can select for the block processing of status. The available selections are:
Bit 0 Initiate Fault State if BAD IN
Bit 1 Initiate Fault State if BAD CAS_IN
Bit 2 Use Uncertain as Good
Bit 5 Target to Manual if BAD IN
Bit 9 Target AUTO if BAD CAS_IN
Bit 10 Target to Man if BAD TRK_IN_D
Bit 11 IFS if BAD TRK_IN_D
15 IN The Primary Input Value for the block coming from another block. Expressed in PV_SCALE Unit
16 PV_FTIME 0 to 60 seconds
Time constant of a single exponential filter for the PV,
expressed in seconds. This is the time necessary for reach
the 63% of the variation in input.