
Appendix E: Device Data Format
Siemens Energy & Automation, Inc. 79
E.2 Device Type: 4300 Power Meter
Real-Time Device Data Stored in PLC (4300 Power Meter)
Real-Time Data Register Location in
PLC Block
1
1. This register location represents the sequential registers and their numbers within the device itself; as illustrated in Figure 5.1 in Chapter 5, the data
register numbers in the Modbus Master and the DTU3005 unit itself will vary from these register numbers.
Range or Contents
Power Factor 0 0...1000, 0.1 percent
PF Lag/Lead 1 0 = Unity, 1 = Lag, 2 = Lead
Voltage L-N Phase A 2
–3 0...999999 V
Voltage L-N Phase B 4
–5 0...999999 V
Voltage L-N Phase C 6
–7 0...999999 V
Voltage L-L Phase AB 8
–9 0...999999 V
Voltage L-L Phase BC 10
–11 0...999999 V
Voltage L-L Phase CA 12
–13 0...999999 V
Current Phase A 14 0...65000 A
Current Phase B 15 0...65000 A
Current Phase C 16 0...65000 A
Kilowatts 17
–18 -999999...999999 kW
Kilowatt Demand 19
–20 -999999...999999 kW Max
Maximum Kilowatt Demand 21
–22 -999999...999999 kW
Kilowatt Hours (net) 23
–24 -999999999...999999999 kWH
Frequency 25 0...32767, 0.1 Hz
Kilovolt-Amperes 26
–27 0...999999 kVA
Kilovolt-Amperes Reactive 28
–29 0...999999 kVAR
Reserved 30
–33 For Future Expansion
Device Command Data Retrieved From PLC (4300 Power Meter)
First Command Word (Command Word) Second Command Word (Data or Value)
0 = No Command to Perform Unused for Command 0
1 = Reset Max Kilowatt Demand Unused for Command 1
2 = Reset Kilowatt Hours Unused for Command 2
Commentaires sur ces manuels