CET PMC-690, User Manual

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CET Electric Technology
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one for every Device / SOE Log generated and will roll over to 0 if its current value is 0xFFFFFFFF. Since the Device /SOE Log
Pointer is a 32-bit value and the Device / SOE Log capacity is relatively small with only 1024 entries in the PMC-690, an
assumption has been made that the Device / SOE Log pointer will never roll over. If a Clear Device / SOE Log is performed
from the front panel or via communications, the Device / SOE Log Pointer will be reset to zero. Therefore, any 3rd party
software should assume that a Clear Device / SOE Log action has been performed if it sees the Device / SOE Log Pointer
rolling over to zero or to a value that is smaller than its own pointer. In this case, the new Device / SOE Log Pointer also
indicates the number of logs in the Device / SOE Log if it is less than 1024. Otherwise, there will always be 1024 entries in
the Device / SOE Log .
5) The PMC-690 has 5 Statistical Data Recorder Logs ( SDR Log #1 to 5 ). Each SDR Log has a pointer that indicates its present
logging position. The range of the SDR Log Pointer is between 0 and 0xFFFFFFFF. The SDR Log Pointer is incremented by
one for every SDR Log generated and will roll over to 0 if its current value is 0xFFFFFFFF. A value of zero indicates that the
device does not contain any SDR Log . If a Clear All SDR Log is performed via communications, all SDR Log Pointers will be
reset to zero.
To determine the latest SDR Log #X location (X=1 to 5):
SDR Log #X latest location = Modulo [ DR Pointer #X / DR #X Depth ]
6) WFR Log has a pointer that indicates its present logging position. The range of the WFR Log Pointer is between 0 and
0xFFFFFFFF. The WFR Log Pointer is incremented by one for every WFR Log generated and will roll over to 0 if its current
value is 0xFFFFFFFF. A value of zero indicates that the device does not contain any WFR Log . The depth of WFR Log is 500
entries. Since the WFR Log Pointers are 32-bit values, an assumption has been made that these pointers will never roll over.
If a Clear WFR log is performed via communications, the WFR Log Pointers will be reset to zero.
To determine the latest WFR Log location:
WFR Log latest location = Modulo [ WFR Log Pointer / WFR Log Depth ]
5.2 Energy Measurements
Register Property Description Format Unit
0500 RW kWh Imp. INT64 wh
0504 RW kWh Exp. INT64 wh
0508 RW kvarh Imp. INT64 varh
0512 RW kvarh Exp. INT64 varh
0516 RW kVAh Total INT64 VAh
0520 RO kWh Net INT64 wh
0524 RO kWh Total INT64 wh
0528 RO kvarh Net INT64 varh
0532 RO kvarh Total INT64 varh
0536 RO Reserved INT64
Table 5-5 Energy Measurements
5.3 PQ Measurements
Register Property Description Format Unit
0700 RO Ua Deviation 1 Float
0702 RO Ub Deviation
1
Float
0704 RO Uc Deviation 1 Float
0706 RO Uab Deviation Float
0708 RO Ubc Deviation Float
0710 RO Uca Deviation Float
0712 RO Over Ua Deviation
1
Float
0714 RO Over Ub Deviation 1 Float
0716 RO Over Uc Deviation
1
Float
0718 RO Over Uab Deviation Float
0720 RO Over Ubc Deviation Float
0722 RO Over Uca Deviation Float
0724 RO Under Ua Deviation
1
Float
0726 RO Under Ub Deviation 1 Float
0728 RO Under Uc Deviation
1
Float
0730 RO Under Uab Deviation Float
0732 RO Under Ubc Deviation Float
0734 RO Under Uca Deviation Float
0736 RO Freq. Deviation Float Hz
0738 RO Ua (WYE) / Uab (Delta) Fluctuation Float
0740 RO Ub (WYE) / Ubc (Delta) Fluctuation Float
0742 RO Uc (WYE) / Uca (Delta) Fluctuation Float
0744 RO Ua (WYE) / Uab (Delta) Fluctuation Freq. Float
0746 RO Ub (WYE) / Ubc (Delta) Fluctuation Freq. Float
0748 RO Uc (WYE) / Uca (Delta) Fluctuation Freq. Float