RMG ERZ2000-NG, Руководство по эксплуатации

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3 Electrical connections
Manual ERZ 2000-NG · EN07 · 2019, May 13th
127
Measurement value
Original encoder counter Vc
DZU (digital counter transmission) direction
Flow direction (when switching from forwards/backwards)
Transmission of analysis data (GC 1/2)
or Modbus data
If the billing mode is assigned to the original encoder counter Vo or a digital trans-
mission takes place (e.g. via Instance F), no sources must be assigned. If an illogical
case arises, a switch to the counters for undefined direction takes place automatical-
ly. All settings take place in menu
EC Billing mode .
A setting can be made in coordinate
EC21 BM at revision for whether the ERZ2000-
NG changes automatically in case of a revision of the billing mode (access only pos-
sible as super user). The operating code in coordinate
EC22 BM0 Suppression can
define whether a changeover to the special counter set for undefined direction should
take place in case of an implausible contact assignment (see above).
The 4 special countera are assigned to frequency inputs 1 to 4 as an additional coun-
ter. A control counter can be activated here independently of the conversion. The
special counters
– like the main counter for custody-transfer applications – have one
digit before and after the decimal (see
chapter 2.5.1.4 Counters
and
2.5.1.5 Custom-
er-specific counters (customer counters
)
). Like the "normal" counters, the special
counters can be assigned value and unit.
Note
These counters are permanently connected to the input and there is no differ-
entiation between main or disturbed quantities. Moreover, no characteristic
curve correction or leak flow volume suppression takes place.
Unit and value can be adjusted depending on the convertion. The portion after the
decimal is stored in a residual counter. The control counter is activated when the set-
ting of coordinate
NL10 Weighting is greater than 0 (see
chapter 3.1.13 NL Fre-
quency input
1
).