Endress+Hauser Deltabar S PMD75 - Page 132

Flow measurement (via local operation and FieldCare) Cerabar S/Deltabar S/Deltapilot S FOUNDATION Fieldbus
132 Endress+Hauser
10.2.1 Resetting totalizer 1 automatically
By means the Analog Alarm Block
With the aid of the Analog Alarm and Discrete Output Block, totalizer 1 in the DP Flow Transducer
Block can be reset automatically.
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The DP Flow Transducer Block is connected to an Analog Input Block by means of the CHANNEL
parameter (CHANNEL = 6). In the Analog Alarm Block, the HI_HI_LIM parameter is used to set a
limit value at which the totalizer should be reset to zero. As soon as this limit value is overshot, the
Analog Alarm Block transmits an alarm value to the downstream Discrete Output Block. The latter
changes its output from 0 to 1 and thus resets the totalizer in the DP Flow Transducer Block to 0.
The output of the Analog Alarm Block changes back to 0.
By means the Analog Input Block
With the aid of Analog Input and Discrete Output Block, totalizer 1 in the DP Flow Transducer
Block can be reset automatically.
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The DP Flow Transducer Block is connected to an Analog Input Block by means of the CHANNEL
parameter (CHANNEL = 6). In the Analog Input Block, the HI_HI_LIM parameter is used to set a
limit value at which the totalizer should be reset to zero. As soon as this limit valu is overshot, the
Analog Input Block tranmits an alarm value to the downstream Discrete Output Block. The latter
changes its output from 0 to 1 and thus resets the totalizer in the DP Flow Transducer Block to 0.
The output of the Analog Input Block changes back to 0.
Analog Input Block 3
CHANNEL =6
L_TYPE =Direct
DP Flow
Transducer Block
Analog Alarm
Block
Discrete Output
Block
CHANNEL =2
HI_HI_ALM
OUT_ALM
IN
CAS_IN_D
OUT_D
OUT
HI_HI_LIM
TOTALIZER_1_
VALUE/
SUMM
ENZ.1
Analog Input Block 3
CHANNEL =6
L_TYPE =Direct
DP Flow
Transducer Block
Discrete Output
Block
CHANNEL =2
IN
OUT_D
HIHI_ALM_OUT_D
TOTALIZER_1_
VALUE/
TOTALIZER 1