Siemens MD-BMS - Page 83

Appendices
Appendix B
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MD
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BMS and MD
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BMED Power Meters Modbus Absolute/Net Value Measu
rement Registers and
Protocol Commands
83
Building Technologies 125-202
06/06/2017
Modbus Offset Register Description
46080 6079 Positive kW System Average Equals Positive KWH_SYSTEM_L&M ÷
(TimeSinceReset_L&M seconds /3600
seconds/Hr) (resettable).
46081 6080 Positive kW Demand System
Minimum
Minimum Average power window (kW)
46082 6081 kVA Demand System Maximum Maximum Instantaneous kVA Demand (kW,
resettable).
46083 6082 kVA Demand System Now System Average kVA Demand for the most recent
(current) Demand Window (resettable).
46084 6083 kVAR Demand System Max System Maximum kVAR Demand (kVAR,
resettable). It displays the default value after a
CAM until one demand window elapses. After a
power cycle or CPU reset, the value is not reset
and does not update again until one demand
window elapses.
Table 22: Negative Power/Energy Measurement Registers.
Modbus Offset Register Description
47001 7000 Negative kWh System LSW System Negative True Energy LSW (kWh,
resettable)
47002 7001 Negative kWh System MSW System Negative True Energy MSW (kWh,
resettable)
47003 7002 Negative kW System System Negative Instantaneous Negative True
Power (kW) (net sum of all individual kWs, if
sum is positive value = 0).
47004 7003 kW Demand System Max System Maximum Demand (peak demand).
47005 7004 kW Demand System Now Average Power (kW) for most recent demand
window
47006 7005 Negative kW System Max System Net Highest Instantaneous Negative
Draw Since Reset (kW, resettable)
47007 7006 Negative kW System Min System Net Lowest Instantaneous Negative
Draw Since Reset (kW, resettable)
47008 7007 Negative kVARh System LSW System Net Negative Reactive Energy LSW
(kVARh, resettable)
47009 7008 Negative kVARh System MSW System Net Negative Reactive Energy MSW
(kVARh, resettable)
47010 7009 Negative kVAR System System Net Instantaneous Negative Reactive
Power (kVAR) (net sum of all individual kVARs,
if sum is positive value = 0)
47011 7010 kVAh System LSW System Apparent Energy LSW (kVAh,
resettable)
47012 7011 kVAh System MSW System Apparent Energy MSW (kVAh,
resettable)