CHAPTER 7: MODBUS COMMUNICATIONS MODBUS MEMORY MAP
PQM POWER QUALITY METER – INSTRUCTION MANUAL 7–53
CALCU-
LATION
PARAMETERS
1030 Current Demand Calculation Type 0 to 2 1 --- F28 0 = Thermal 
Exponential
1031 Current Demand Time Interval 5 to 180 1 minutes F1 30 min
1032 Power Demand Calculation Type 0 to 2 1 --- F28 0 = Thermal 
Exponential
1033 Power Demand Time Interval 5 to 180 1 minutes F1 30 min
1034 Energy Cost Per kWh 1 to 50000 1 ¢ x 0.01 F1 10.00 ¢
1035 Extract Fundamental 0 to 1 1 --- F11 0=DISABLE
1036 Reserved
1037 Reserved
CLEAR DATA
1038 Clear Energy Values 0 to 1 1 --- F31 0 = NO
1039 Clear Max Demand Values 0 to 1 1 --- F31 0 = NO
103A Clear Min/Max Current Values 0 to 1 1 --- F31 0 = NO
103B Clear Min/Max Voltage Values 0 to 1 1 --- F31 0 = NO
103C Clear Min/Max Power Values 0 to 1 1 --- F31 0 = NO
CLEAR DATA
continued
103D Clear Max THD Values 0 to 1 1 --- F31 0 = NO
103E Clear Pulse Input Values 0 to 1 1 --- F31 0 = NO
103F Clear Event Record 0 to 1 1 --- F31 0 = NO
1040 Clear All Demand Values 0 to 1 1 --- F31 0 = NO
1041 Clear Frequency Values 0 to 1 1 --- F31 0 = NO
1042 Reserved
1043 Reserved
DNP
1044 DNP Port 0 to 3 1 --- F47 0 = NONE
1045 DNP Slave Address 0 to 255 1 --- F1 0
1046 DNP Turnaround Time 0 to 100 10 ms F1 10 ms
TARIFF
1047 Tariff Period 1 Start Time 0 to 1439 1 minutes F1 0 min.
1048 Tariff Period 1 Cost per kWh 1 to 50000 1 ¢ × 0.01 F1 10.00 ¢
1049 Tariff Period 2 Start Time 0 to 1439 1 minutes F1 0 min.
104A Tariff Period 2 Cost per kWh 1 to 50000 1 ¢ × 0.01 F1 10.00 ¢
104B Tariff Period 3 Start Time 0 to 1439 1 minutes F1 0 min.
104C Tariff Period 3 Cost per kWh 1 to 50000 1 ¢ × 0.01 F1 10.00 ¢
104D Reserved
104E Reserved
104F Reserved
Table 7–10: PQM Memory Map (Sheet 37 of 55)
GROUP ADDR
(HEX)
DESCRIPTION RANGE STEP 
VALUE
UNITS and
SCALE
FORMAT FACTORY 
DEFAULT
Notes:* Data type depends on the Command Operation Code.** Any valid Actual Values or Setpoints address.
*** Maximum Setpoint value represents “OFF”.**** Minimum Setpoint value represents “OFF”.
***** Maximum Setpoint value represents “UNLIMITED”.****** Applicable to older revisions with VFD display only
Courtesy of NationalSwitchgear.com