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Installation Guide
Power Monitoring
E50B1, E50C2, E50C3
Modbus Point Map (cont.)
R/W NV Format
•
• 146
R
•
• 147
R
NV
•
• 148
R
•
• 149
R/W NV
•
• 150
R/W NV
•
• 151
R/W
•
• 152
R/W NV
•
• 153
R
NV
•
• 154
R
• 155
R/W NV
• 156
R/W NV
• 157
R/W NV
ZL0103-0C
Page 22 of 26
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Units
Scale
Range
UInt
UInt
0-32767
UInt
UInt
1-6
UInt
Seconds
0, 10-32767
UInt
1-32767
UInt
0-32767
UInt
0-32767
UInt
Day /
UInt
See Bytes
Month
Hour /
UInt
See Bytes
Year
Seconds /
UInt
See Bytes
Minutes
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Other companies' trademarks are hereby acknowledged to belong to their respective owners.
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Diagnostic Alert Bitmap. 1 = Active:
Bit 0: Phase A Voltage out of range
Bit 1: Phase B Voltage out of range
Bit 2: Phase C Voltage out of range
Bit 3: Phase A Current out of range
Bit 4: Phase B Current out of range
Bit 5: Phase C Current out of range
Bit 6: Frequency out of the range of 45 – 65 Hz OR there is insufficient voltage to determine frequency.
Bit 7: Reserved for future use
Bit 8: Phase Loss A
Bit 9: Phase Loss B
Bit 10: Phase Loss C
Bit 11: Low Power Factor on A with one or more phases having a PF less than 0.5 due to mis-wiring of phases
Bit 12: Low Power Factor on B
Bit 13: Low Power Factor on C
Bit 14: Energy pulse output overrun error. The pulse outputs are unable to keep up with the total real power
(registers 3 and 261/262). To fix, increase the pulse energy register (register 144) and reset the energy
accumulators (see reset register 129).
Bit 15: Energy pulse output configuration error (present pulse energy setting may not keep up with the
theoretical max. system power; see register 135). To fix, increase the pulse energy (register 144).
Count of Energy Accumulator resets
Reserved (returns 0)
Number of Sub-Intervals per Demand Interval. Sets the number of sub-intervals that
make a single demand interval. For block demand, set this to 1.
Sub-Interval Length in seconds. For sync-to-comms, set this to 0 and use the reset
register (129) to externally re-start the sub-interval. On the E50C3, this is also the
logging interval.
Reserved (returns 0)
Power Up Counter.
Output Configuration. E50B1, E50C2, and E50C3 units have a NO (normally open) energy contact and NC
(normally closed) (Normally Open - Form A or Normally Closed - Form B) Phase Loss contact. While the relay
used for the Phase Loss contact is Normally Closed (contacts are closed when the meter is not powered),
closure indicates the presence of an alarm; either loss of phase, when the meter is powered, or loss of power
when the meter is not. The contacts are open when the meter is powered and no phase alarm conditions are
present.
3rd Output:
0 = RS-485
2 = VAR Pulse
Reserved, returns 0
Logging Configuration and Status
Most Significant Byte (MSB)
Least Significant Byte (LSB)
Day 1-31 (0x01-0x1F)
Month 1-12 (0x01-0x0C)
Hour 0-23 (0x00-0x17)
Year 0-199 (0x00-0xC7)
Seconds 0-59 (0x00-0x3B)
Minutes 0-59 (0x00-0x3B)
PowerMeterStore
Description
Demand Calculation
Date / Time Clock. Following a power cycle,
resets to:
Day 01
Month 01
Hour 00
Year (20) 00
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