ZL0067-0E
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TM
E51C2, E51C3 Installation Guide
E51C2 FDS
E51C3 L
og
Regist
er
R/W NV Format Units Scale
Range
Description
Configuration
•
• 129
R/W
UInt
N/A
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
next 1 second calculation cycle. Write no more frequently than every 10 seconds.
- Write 21212 (0x52DC) to reset Max Demand values to Present Demand Values. Takes effect at the end of the
next 1 second calculation cycle. Write no more frequently than every 10 seconds.
- Write 16640 (0x4100) to reset Logging (E51C3 only).
- Write 16498 (0x4072) to clear Pulse Counts to zero.
- Read always returns 0.
•
• 130
R/W NV UInt
10,
11,
12,
31,
40
Single Phase: A + N
System Type
(See Manual. Note: only the
indicated phases are monitored
for Phase Loss)
Single Phase: A + B
Single Split Phase: A + B + N
3 phase ∆, A + B + C, no N
3 phase Y, A + B + C + N
•
• 131
R/W NV UInt
Amps
1-32000
CT Ratio – Primary
Current Inputs
•
• 132
R/W NV UInt
1, 3
CT Ratio – Secondary Interface (1 or 1/3 V, may not be user configurable)
•
• 133
R/W NV UInt
100
0.01-320.00
PT Ratio: The meter scales this value by 100 (i.e. entering 200 yields a potential transformer ratio of 2:1).
The default is 100 (1.00:1), which is with no PT attached. Set this value before setting the system voltage
(below)
•
• 134
R/W NV UInt
82-32000
System Voltage: This voltage is line to line, unless in system type 10 (register 130), which is line to neutral.
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).
•
• 135
R
NV UInt
kW
W
1-32767
Theoretical Maximum System Power – This read only register is the theoretical maximum power the meter
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).
•
• 136
R
UInt
Reserved, always returns 0
•
• 137
R/W NV UInt
0,1
Display Units: 0 = IEC (U, V, P, Q, S), 1 = IEEE (default: VLL, VLN, W, VAR, VA)
•
• 138
R
SInt
-4 0.0001
-3 0.001
-2 0.01
-1 0.1
0 1.0
1 10.0
2 100.0
3 1000.0
4 10000.0
Scale Factor I (Current)
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.
•
• 139
R
SInt
Scale Factor V (Voltage)
•
• 140
R
SInt
Scale Factor W (Power)
•
• 141
R
SInt
Scale Factor E (Energy)
Modbus Point Map (cont.)
