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E51C2A, E51C3A Installation Guide
Modbus Point Map (cont.)
R/W NV Format
•
• 129
R/W
UInt
•
• 130
R/W NV
UInt
•
• 131
R/W NV
UInt
•
• 132
R/W NV
UInt
•
• 133
R/W NV
UInt
•
• 134
R/W NV
UInt
•
• 135
R
NV
UInt
•
• 136
R
UInt
•
• 137
R/W NV
UInt
•
• 138
R
SInt
•
• 139
R
SInt
•
• 140
R
SInt
•
• 141
R
SInt
ZL0122-0D
Page 23 of 34
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Units Scale
Range
Reset:
- Write 30078 (0x757E) to clear all Energy Accumulators to 0 (All).
- Write 21211 (0x52DB) to begin new Demand Sub-Interval calculation cycle. Takes effect at the end of the
N/A
- Write 21212 (0x52DC) to reset Max Demand values to Present Demand Values. Takes effect at the end of the
- Write 16640 (0x4100) to reset Logging (E51C3A only).
- Write 16498 (0x4072) to clear Pulse Counts to zero.
- Read always returns 0.
Single Phase: A + N
10,
Single Phase: A + B
11,
Single Split Phase: A + B + N
12,
3 phase ∆, A + B + C, no N
31,
40
3 phase Y, A + B + C + N
Amps
20-5000
CT Ratio – Primary
n/a
Reserved, returns QNAN
PT Ratio: The meter scales this value by 100 (i.e. entering 200 yields a potential transformer ratio of 2:1).
100
0.01-320.00
System Voltage: This voltage is line to line, unless in system type 10 (register 130), which is line to neutral.
82-32000
Theoretical Maximum System Power – This read only register is the theoretical maximum power the meter
kW
W
1-32767
Reserved, always returns 0
0,1
Display Units: 0 = IEC (U, V, P, Q, S), 1 = IEEE (default: VLL, VLN, W, VAR, VA)
-4 0.0001
Scale Factor I (Current)
-3 0.001
-2 0.01
Scale Factor V (Voltage)
-1 0.1
0 1.0
Scale Factor W (Power)
1 10.0
2 100.0
3 1000.0
Scale Factor E (Energy)
4 10000.0
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Configuration
next 1 second calculation cycle. Write no more frequently than every 10 seconds.
next 1 second calculation cycle. Write no more frequently than every 10 seconds.
The default is 100 (1.00:1), which is with no PT attached. Set this value before setting the system voltage
(below)
The meter uses this value to calculate the full scale power for the pulse configuration (below), and as full
scale for phase loss (register 142). The meter will refuse voltages that are outside the range of 82-660 volts
when divided by the PT Ratio (above).
expects to see on a service. It is calculated by the meter from the System Type (register 130), CT size (register
131), and System Voltage (register 134) and is updated whenever the user changes any of these parameters.
It is used to determine the maximum power the pulse outputs can keep up with. This integer register has the
same scale as other integer power registers (see register 140 for power scaling).
Description
System Type
(See Manual. Note: only the
indicated phases are monitored
for Phase Loss)
Current Inputs
Scale Factors
Note: These registers contain a signed
integer, which scales the corresponding
integer registers. Floating point
registers are not scaled. Scaling
is recalculated when the meter
configuration is changed.
TM
0818
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