CET PMC-340 User Manual

CET Inc.
28
Apparent Energy
kVAh
Table 4-8 Energy Measurements for each Monthly Energy Log Record
4.4.3 Peak Demand Log
The PMC-340 records the Peak Demand of This Month (Since Last Reset) and Last Month (Before Last
Reset) with timestamp for Ia, Ib, Ic, kW Total, kvar Total and kVA Total as well as kW Total, kvar Total
and kVA Total for TOU Tariffs 1 to 4. All Peak Demand information can be accessed through the front
panel as well as communications. Please refer to Section 4.5 for a complete description of the Self-
Read Time and its operation.
Peak Demand Logs of This Month (Since Last Reset) and Last Month (Before Last Reset)
Ia
Ib
Ic
kW Total
kvar Total
kVA Total
kW Total for TOU Tariffs 1 to 4
kvar Total for TOU Tariffs 1 to 4
kVA Total for TOU Tariffs 1 to 4
Table 4-9 Peak Demand
4.4.4 SOE Log (PMC-340B Only)
The PMC-340B’s SOE Log can store up to 16 events such as Power-On, Power-Off, Digital Input status
changes and setup changes in its non-volatile memory. Each event record includes the event
classification, its relevant parameter values and a timestamp in ±1 ms resolution.
All events can be retrieved via communications for display. If there are more than 16 events, the
newest event will replace the oldest event on a first-in-first-out basis. The SOE Log can be reset from
via communications.
4.4.5 Data Recorder Log (PMC-340B Only)
The PMC-340B comes equipped with 2MB of memory and provides one Data Recorder capable of
recording a maximum of 16 parameters. The Data Recorder Log is stored in the device’s non-volatile
memory and will not suffer any loss in the event of a power failure.
The programming of the Data Recorder is only supported over communication. The Data Recorder
provides the following setup parameters:
Setup Parameters
Value/Option
Default
Trigger Mode
0=Disabled / 1=Triggered by Timer
1
Recording Mode
0=Stop-When-Full / 1=First-In-First-Out
1
Recording Depth
1 to 28,400 (entry)
28,400
Recording Interval
1 to 3,456,000 seconds
900 s
Offset Time
0 to 43,200 seconds, 0 indicates no offset.
0
Number of Parameters
0 to 16
14
Parameter 1 to 16
See Appendix A
See 5.11
Table 4-10 Setup Parameters for Data Recorder
The Data Recorder Log is only operational when the values of Trigger Mode, Recording Mode,
Recording Depth, Recording Interval, and Number of Parameters are all non-zero.
The Recording Offset parameter can be used to delay the recording by a fixed time from the Recording
Interval. For example, if the Recording Interval parameter is set to 3600 (hourly) and the Recording

CET PMC-340 Specifications

General

Brand	CET
Model	PMC-340
Category	Measuring Instruments
Language	English