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Installation Guide
Power Monitoring
E50B1, E50C2, E50C3
Data Logging
(E50C3 only,
cont.)
Standard Modbus
Default Settings
ZL0103-0C
Page 17 of 26
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Read/Write Collision
If the demand sub-interval timeout occurs while the user is reading a page (register 158 ≠ 0), the log data will be held in RAM
until the next demand subinterval. At that time, both the saved data from the previous cycle and the new data will be written to
the log, whether the page register has been set back to 0 or not. Error bits in the Log Status Register (160) track these conditions.
Subsequent log writes will proceed normally. Provided the log read is concluded in less time than the demand sub-interval, this
mechanism handles the occasional collision and prevents the user from reading data as the buffer is being updated.
The Log Status Register has additional error flag bits that indicate whether logging has been reset or interrupted (power cycle,
etc.) during the previous demand sub-interval, and whether the Real-Time Clock has been changed (re-initialized to default date/
time due to a power-cycle or modified via Modbus commands).
Setting
Setup Password
Reset Password
System Type
CT Primary Ratio (if CTs are not included)
CT Secondary Ratio
PT Ratio
System Voltage
Max. Theoretical Power
(Analog Output: full scale (20mA or 5V))
Display Mode
Phase Loss
Pulse Energy
Demand: number of sub-intervals per interval
Demand: sub-interval length
Modbus Address
Modbus Baud Rate
Modbus Parity
Log Read Page
Logging Configuration Register
Log Register Pointer 1
Log Register Pointer 2
Log Register Pointer 3
Log Register Pointer 4
Log Register Pointer 5
Log Register Pointer 6
Log Register Pointer 7
Log Register Pointer 8
Log Register Pointer 9
Log Register Pointer 10
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Value
00000
00000
40 (3 + N) Wye
100A
1V
1:1 (none)
600 V L-L
104 kW
1 (IEEE)
10% of System Voltage (60V), 25% Phase to Phase Imbalance
1 (kWh/pulse)
1 (block mode)
900 sec (15 min)
001
19200 baud
None
0
0
1 (Real Energy MSR)
2 (Real Energy LSR)
29 (Reactive Energy MSR)
30 (Reactive Energy LSR)
37 (Real Demand)
38 (Reactive Demand)
39 (Apparent Demand)
155 (Month/Day)
156 (Year/Hour)
157 (Minutes/Seconds)
Modbus
Register
–
–
130
131
132
133
134
135
137
142, 143
144
149
150
–
–
–
158
159
169
170
171
172
173
174
175
176
177
178
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