4.2 Entering Energy start count:
(Applicable for meter with modbus or Ethernet)
Energy start count is the feature that allows user to set count from which the meter should start incrementing
energy. The start count can be set for main energy start counter & Overflow energy start Counter separately
from modbus or Ethernet. Setting of energy start count is dependent on Energy resolution & Energy digit reset
count (EDRC).
Energy unit/resolution on modbus can be set by user from display (See Section 3.2.1.11) or from modbus
(refer modbus register 46021).
Value for Energy resolution can be set to Wh,kWh or MWh.
Minimum resolution of energy that can be set in energy start count register is, the Energy resolution set by
user.
For Eg.: Energy start count can be set to minimum 1Wh if the value on modbus register 46021 is set to Wh Or
Energy start count can be set to minimum 1MWh if the value on modbus register 46021 is set to MWh.
Maximum value that can be set in the main energy start count register is (10^(EDRC)-1).
Where:
EDRC => Energy digit reset count set by user from display or modbus
For display setting refer Section 3.2.1.12.
For modbus refer Register 46023
Example for calculating maximum limit of main energy start count :
If EDRC is 7 then Maximum value that can be set in the main energy start count (M) register is
= (10^(EDRC)-1)
= ((10^7)-1)
= (10000000-1)
= 9999999
Similarly if EDRC is 8 the maximum value is 99999999 & if EDRC is 9 maximum value is 999999999.
Maximum value that can be set in the Overflow energy start count register is 99999999 for Wh renergy
resolution ,99999 for kWh energy resolution ,99 for MWh resolution.
Note: Energy start Count can only be entered in integer value.
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Summary of Contents for RISH LM 1340
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