10 Block SPECIAL FUNCTION Device Functions Proline Promass 83 MODBUS RS485
138 Endress+Hauser
10.2.2 Function group VALVE PARAMETER
SPECIAL FUNCTION H → DENSITY FUNCTIONS HAA
→
BATCHING FUNCTION HCA → CONFIGURATION 720
→
VALVE PARAMETER 722
Function description
SPECIAL FUNCTION → BATCHING FUNCTION → VALVE PARAMETER
The parameters for the switching contacts of up to 2 valves can be set in the following functions. The number of
switching contacts (valves) available, and thus their settings in this group, is defined in the function BATCH STAGES
(7208).
! Note!
The following functions are only available if at least one batch stage has been selected in the function BATCH SELECTOR
(7200).
OPEN VALVE 1
MODBUS register:
Data type:
Access:
7220
See Note
Float
read/write
For specifying the quantity value at which contact 1 opens.
This is used as a switch point for valve 1 to output via an assigned output. The
quantity value is entered as a % or as an absolute value, depending on the option
in the function INPUT FORMAT (7209).
User input: 0 to max. value or 0 to 100% (related to the batching quantity)
Factory setting: 0 [unit] or 0 [%]
! Note!
• Dynamic tracking for %-data:
If the value is entered as a %, this %-value always refers to the batching
quantity (e.g. 70% of a batching quantity of 10 liters = 7 liters).
If the BATCH QUANTITY (7203) is adjusted (reduced/increased), the effective
quantity switch point is automatically and dynamically adjusted (e.g. taking
70% and changing the batching quantity from 10 to 20 liters, the quantity
switch point is adjusted from 7 liters to 14 liters).
• Dynamic tracking for value-data:
If you enter value-input, this value is “absolute” for batching quantities that do
not change (e.g. always 7 kg for a batching quantity of 10 kg). If the batching
quantity (7203) is adjusted (reduced/increased), the quantity switch point is
automatically and dynamically adjusted/tracked (e.g. with a new batching
quantity changing from 10 to 20 liters, the quantity switch point is adjusted
from 7 liters to 14 liters).
In other words, the existing value data is tracked as a percentage of the altered
batching quantity.
! Note for MODBUS!
The MOBBUS register depends on the option selected in the function BATCH
SELECTOR (7200):
• BATCH # 1 = MODBUS register 8001
• BATCH # 2 = MODBUS register 8003
• BATCH # 3 = MODBUS register 8005
• BATCH # 4 = MODBUS register 8007
• BATCH # 5 = MODBUS register 8009
• BATCH # 6 = MODBUS register 8011
CLOSE VALVE 1
MODBUS register:
Data type:
Access:
7221
8013
Float
read
Displays the quantity value at which contact 1 (valve 1) closes.
The quantity value is displayed either as a % or as an absolute value, depending on
the option in the function INPUT FORMAT (7209).
Display: Value or 100% (corresponds to the batching quantity)
Factory setting: 0 [unit] or 0 [%]
! Note!
The switching contact for valve 1 is the “main contact”, i.e. the closing function of
valve 1 is firmly assigned to the batching quantity entered, (see function BATCH
QUANTITY (7203) on Page 132). In this way, function CLOSE VALVE 1 (7221)
is also the basis for calculating the after run quantity.
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