www.eaton.com IM02601001E C-67
Modbus Register Maps
13 THD not available shows 10000 in all THD and harmonic magnitude and phase registers for the channel. THD may be unavailable due to low V or I amplitude, delta hookup (V only), or Model.
14 Option Card Identification and Configuration Block is an image of the EEPROM on the card.
15 A block of data and control registers is allocated for each option slot. Interpretation of the register data depends on what card is in the slot.
16 Measurement states: Off occurs during programmable settings updates; Run is the normal measuring state; Limp indicates that an essentail non-volatile memory block is corrupted; and Warmup
occurs briefly (approximately 4 seconds) at startup while the readings stabilize. Run state is required for measurement, historical logging, demand interval processing, limit alarm evaluation,
min/max comparisons, and THD calculations. Resetting min/max or energy is allowed only in run and off states; warmup will return a busy exception. In limp state, the meter reboots at 5
minute intervals in an effort to clear the problem.
17 Limits evaluation for all entites except demand averages commences immediately after the warmup period. Evaluation for demand averages, maximum demands, and minimum demands com-
mences at the end of the first demand interval after startup.
18 Only 1 input on all digital input cards may be specified as the end-of-interval pulse.
19 Combination of class and type currently defined are:
0x41 = Relay card
0x42 = Pulse card
0x81 = 0-1mA analog output card
0x82 = 4-20mA analog output card.
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