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
•
• 147
R
NV UInt
0-32767
Count of Energy Accumulator resets
•
• 148
R
UInt
Reserved (returns 0)
•
• 149
R/W NV UInt
1-6
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. Default is 1. When Sub-
Interval Length register #150 is set to 0 (sync-to-comms mode), this register is ignored. Demand
Calculation
•
• 150
R/W NV UInt
Seconds
0, 10-32767
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 E51C3, this is also the
logging interval.
•
• 151
R/W
UInt
1-32767
Reserved (returns 0)
•
• 152
R
NV UInt
0-32767
Power Up Counter.
•
• 153
R
NV UInt
0-32767
Output Configuration. E51C2 and E51C3 units have a NO energy contact and NC (Normally Closed - Form B)
Phase Loss contact, so this register will always return a “0”.
•
• 154
R
UInt
Reserved, returns 0
Logging Configuration and Status
• 155
R/W NV UInt
Day /
Month
See Bytes
Most Significant Byte (MSB) Least Significant Byte (LSB)
Date / Time Clock. Following a power cycle,
resets to:
Day 01 Month 01
Hour 00 Year (20) 00
Day 1-31 (0x01-0x1F)
Month 1-12 (0x01-0x0C)
• 156
R/W NV UInt
Hour /
Year
See Bytes
Hour 0-23 (0x00-0x17)
Year 0-199 (0x00-0xC7)
• 157
R/W NV UInt
Seconds
/
Minutes
See Bytes
Seconds 0-59 (0x00-0x3B)
Minutes 0-59 (0x00-0x3B)
• 158
R/W NV UInt
0-10
Logging Read Page Register. Selects which of the Register Logs to read (see registers 169-178). 1-10 are valid
entries that put the meter into log reading mode, temporarily pausing logging. When set to 0 (no variable
selected for reading), normal logging resumes. The meter will buffer one set of log entries while in reading
mode if a sub-interval timeout occurs (read/write collision). Default is 0.
Warning: this buffered data will be written to the log, and logging will resume on the following sub-interval
timeout whether the page register has been cleared or not, resulting in the appearance of data moving in
the buffer during reads. To avoid this, log buffer reads should be completed and this register set back to 0 in
less time than the Demand Sub-interval (preferred) or logging should be halted by setting Bit 1 in register
158 (logs may be missed)
• 159
R/W NV UInt
Logging Configuration Register (Bit Mapped):
Bit 0: Clear to 0 for Circular log buffer mode. Set to 1 for single shot logging mode. Default is 0 (Circular).
Bit 1: Clear to 0 to enable Logging. Set to 1 to halt logging. Default is 0 (Log).
Modbus Point Map (cont.)
