Device Functions Proline Promass 83 MODBUS RS485 10 Block SPECIAL FUNCTION
Endress+Hauser 133
FIX
COMPENSATION
QUANTITY
MODBUS register:
Data type:
Access:
7204
See Note
Float
read/write
Use this function to specify a positive or negative compensation quantity. The
compensation quantity balances out a constant, system-related incorrect
quantity. This can be caused, for example, by a pump over-running or by the
closing time of a valve. The compensation quantity is determined by the system
operator. A negative compensation quantity must be specified for overbatching
and a positive compensation quantity for underbatching.
! Note!
The compensation quantity affects batching quantity only and does not affect the
after run compensation.
User input: +/–10% of the batch quantity
Factory setting: 0 [unit]
! Note!
• If the entry range is not sufficient for the compensation quantity, the batching
quantity may have to be adjusted.
• The appropriate unit is taken from the function group SYSTEM UNITS
(see Page 15).
! Note for MODBUS!
The MOBBUS register depends on the option selected in the function BATCH
SELECTOR (7200):
• BATCH # 1 = MODBUS register 6344
• BATCH # 2 = MODBUS register 6346
• BATCH # 3 = MODBUS register 6348
• BATCH # 4 = MODBUS register 6350
• BATCH # 5 = MODBUS register 6352
• BATCH # 6 = MODBUS register 6354
COMPENSATION
MODE
MODBUS register:
Data type:
Access:
7205
See Note
Integer
read/write
Use this function to determine whether the after run quantity or a fixed
compensation quantity should be taken into account at the next batching .
Options:
0 = OFF
1 = MODE 1
2 = MODE 2
Factory setting: OFF
! Note!
The pressure shock suppression must be switched off if MODE 1 or MODE 2 is
selected in this function (see function PRESSURE SHOCK SUPPRESSION on Page
110).
! Note for MODBUS!
The MOBBUS register depends on the option selected in the function BATCH
SELECTOR (7200):
• BATCH # 1 = MODBUS register 6356
• BATCH # 2 = MODBUS register 6357
• BATCH # 3 = MODBUS register 6358
• BATCH # 4 = MODBUS register 6359
• BATCH # 5 = MODBUS register 6360
• BATCH # 6 = MODBUS register 6361
Detailed explanations and information
When batching using the optional software package BATCHING, process-related
variable after run quantities or incorrect quantities can be determined and
balanced out (by computer) by means of various functions. This ensures a high
level of accuracy throughout the entire batching range.
• Response when OFF is selected:
The batching ends as soon as the quantity specified in the function BATCH
QUANTITY (7203) has been achieved. If after running occurs, this is not
recorded and is not taken into consideration during the next batching. In this
way, in the event of process-related after running, the effective batched
quantity is generally larger than the batching quantity specified.
(continued on next page)
Function description
SPECIAL FUNCTION → BATCHING FUNCTION → CONFIGURATION
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