WaterMaster
Electromagnetic flowmeter
2 Parameter Tables
28
IM/WMPBST–EN Rev. B
2.8 Slot 7 – Analog Output 1 – Display Value
Abs. Idx /
Rel. Idx
Variable Name / Brief Description
Data Type
Size
Store
Access /
Usage /
Transport
Default
16 / 0
BLOCK_OBJECT
This object contains the characteristics of the blocks.
DS-32
20
Cst
r / C / a
–
17 / 1
ST_REV
Revision counter for static variables. If a static variable changes its value, this counter is
incremented by one.
Unsigned 16
2
N
r / C / a
0
18 / 2
TAG_DESC
Every block can be assigned a textual TAG description.
The TAG_DESC must be unambiguous and unique in the Fieldbus system.
OctetString
32
S
r,w / C / a
'
'
19 / 3
STRATEGY
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.
Unsigned 16
2
S
r,w / C / a
0
20 / 4
ALERT_KEY
The ALERT_KEY parameter has a user-assigned that can be used for sorting alarms or
events generated by a block.
Unsigned 8
1
S
r,w / C / a
0
21 / 5
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
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.
Unsigned 8
1
S
r,w / C / a
Auto
22 / 6
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.
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
DS-37
3
D
r / C / a
Actual:
Out Of Service
Permitted:
Auto
Manual
Out Of Service
Normal:
Auto
23 / 7
ALARM_SUM
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.
DS-42
8
D
r / C / a
–
24 / 8
BATCH
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.
DS-67
10
S
r,w / C / a
–
25 / 9
SP
Input value from the control system.
101
5
D
r,w / I / cyc
–
26 / 10
UNUSED
Unused parameter.
–
–
–
–
–
27 / 11
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
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.
DS-36
11
S
r,w / C / a
–
28 / 12
READBACK
The actual position of the final control element within the travel span (between OPEN and
CLOSE position) in units of PV_SCALE.
101
5
D
r,w / C / a
–
Table 2.9 Slot 7 – Analog Output 1 – Display Value
