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WaterMaster
Electromagnetic flowmeter
2.5 Slot 4 – Analog Input 2 – Internal Volume Forward Totalizer
Abs. Idx /
Variable Name / Brief Description
Rel. Idx
BLOCK_OBJECT
16 / 0
This object contains the characteristics of the blocks.
ST_REV
17 / 1
Revision counter for static variables. If a static variable changes its value, this counter is
incremented by one.
TAG_DESC
18 / 2
Every block can be assigned a textual TAG description.
The TAG_DESC must be unambiguous and unique in the Fieldbus system.
STRATEGY
19 / 3
The STRATEGY parameter has a user-specified value. This assigned value can be used
in configuration or diagnostics as a key in sorting block information.
ALERT_KEY
20 / 4
The ALERT_KEY parameter has a user-assigned value that can be used for sorting
alarms or events generated by a block.
TARGET_MODE
The TARGET_MODE indicates what mode of operation is required for the block. It is
normally set by a control application or by an operator through a human interface
21 / 5
application. The input parameters are used by the algorithm in conjunction with the state
of the Function Block application containing the block to determine if the algorithm can
achieve the target mode of operation established for it.
See parameter 'MODE_BLK', 'Permitted' element for possible values.
MODE_BLK
The MODE_BLK is a structured parameter composed of the actual mode, the normal
mode and the permitted mode of the block.
The actual mode is set (calculated) by the block during its execution to reflect the mode
used during execution.
22 / 6
The normal mode is the required operating mode of the block.
The permitted mode shows which changes of the target mode are valid for the specific
block to the remote user of the MODE_BLK parameter.
8: Auto
16: Manual
128: Out Of Service
ALARM_SUM
23 / 7
The ALARM_SUM parameter summarizes the status of up to 16 block alarms. For each
alarm, the current states, unacknowledged states, unreported states and disabled states
are maintained.
BATCH
24 / 8
The Batch parameter is necessary in a distributed Fieldbus system to identify used and
available channels, in addition to identify the current batch in case of alerts.
UNUSED
25 / 9
Unused parameter.
OUT
The Function Block parameter OUT contains the current measurement value in a
26 / 10
vendor-specific or configuration-adjusted engineering unit and the belonging state in
AUTO MODE. The Function Block parameter OUT contains the value and status set by
an operator in MAN MODE.
PV_SCALE
Conversion of the Process Variable into percent using the high and low scale values. The
engineering unit of PV_SCALE high and low scale values are related directly to the
27 / 11
PV_UNIT of the configured Transducer Block (configured via Channel parameter). The
PV_SCALE high and low scale values follow the changes of the PV_UNIT of the related
Transducer Block automatically – a change of the Transducer Block PV_Unit causes no
bump at OUT from AI.
Table 2.6 Slot 4 – Analog Input 2 – Internal Volume Forward Totalizer
IM/WMPBST–EN Rev. B
Access /
Data Type
Size
Store
Usage /
Transport
DS-32
20
Cst
r / C / a
Unsigned 16
2
N
r / C / a
OctetString
32
S
r,w / C / a
Unsigned 16
2
S
r,w / C / a
Unsigned 8
1
S
r,w / C / a
Unsigned 8
1
S
r,w / C / a
DS-37
3
D
r / C / a
DS-42
8
D
r / C / a
DS-67
10
S
r,w / C / a
–
–
–
101
5
D
r,w / O / cyc
Float
8
S
r,w / C / a
2 Parameter Tables
Default
–
0
'
'
0
0
Auto
Actual:
Out Of Service
Permitted:
Auto
Manual
Out Of Service
Normal:
Auto
–
–
–
–
–
–
19
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