GE EPM 5100, Инструкция по эксплуатации

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CHAPTER 5: COMMUNICATIONS
EPM 5100 ELECTRONIC POWER METER – USER GUIDE 5–3
The dynamic value registers contain information relating to variable operating parameters
such as phase current and phase voltage. These registers are read-only and their contents
cannot be changed by the user.
The setpoint registers contain information that configures the device to operate in a user-
defined manner. These registers may be read over the modbus network, but may not be
written over the network. Any changes to the setpoint registers can only be made via the
faceplate.
The command coils (registers) allow you to cause specific control actions to take place at
the device, such as Clear Energy Accumulators.
Addresses designated with L suffix return a Long Signed Integer value concatenated from
two successive registers. Addresses designated with F suffix return a floating point value
concatenated from two successive registers. Addresses designated with Ann suffix return
an array read from nn successive registers.
NOTE
Table 5–2: Modbus Memory Map (Sheet 1 of 3)
Register Mnemonic Contents Range / Units R/W Format
Command Coils
R00000 CLEAR_DMND Clear power demand (watts) 0 to 1 WO F17
R00001 MTR_INITIALIZE Initialize meter 0 to 1 WO F17
R00002 CLEAR_ENERGY Clear energy (var-hour) 0 to 1 WO F17
R00003 CLEAR_ERROR Clear meter errors 0 to 1 WO F17
Dynamic Value Registers
R31000 PENDING_EVENTS Number of pending event messages 0 to 8 RO F1
R31002F KVA_MAX_TOTAL kVA max, total of all phases kVA RO F4
R31004F KW_MAX_TOTAL kW max, total of all phases kW RO F4
R31006F KVAR_LG_MAX_TOTAL kvar lag max, total of all phases kvar RO F4
R31008F KVAR_LD_MAX_TOTAL kvar lead max, total of all phases kvar RO F4
R31010F AMPS_MAX_A Current Max Phase A amps RO F4
R31012F AMPS_MAX_B Current Max Phase B amps RO F4
R31014F AMPS_MAX_C Current Max Phase C amps RO F4
R31016F KVARH_LG_TOTAL kvarh lag, total of all phases kVARh RO F4
R31018F KVARH_LD_TOTAL kvarh lead, total of all phases kVARh RO F4
R31020F KWH_TOTAL kWh, total of all phases kWh RO F4
R31022F KQH_TOTAL kQh, total of all phases
kqhQ = ( x var + W
) / 2
RO F4
R31024F KVAH_TOTAL kVAh, total of all phases kVAh RO F4
R31026F PF_AVG Average power factor since last reset, all phases --- RO F4
R31028F PF_AT_KVA_MAX Power factor, total of all phases, at maximum kVA --- RO F4
R31030F KVA_DMND_TOTAL Apparent power demand (kVA), total of all phases kVA RO F4
R31032F KW_DMND_TOTAL Real power demand (kW) total of all phases kW RO F4
R31034F KVAR_LG_DMND_TOTAL Reactive power demand (kvar lag), total of all phases kvar RO F4
R31036F KVAR_LD_DMND_TOTAL Reactive power demand (kvar lead), total of all phases kvar RO F4
R31038F AMPS_DMND_A Current demand, phase A amps RO F4
R31040F AMPS_DMND_B Current demand, phase B amps RO F4
R31042F AMPS_DMND_C Current demand, phase C amps RO F4
R31044F PF_DMND Power factor, all phases (over last demand interval) --- RO F4
R31046F KW_A Real power (kW), phase A kW RO F4
R31048F KW_B Real power (kW), phase B kW RO F4
R31050F KW_C Real power (kW), phase C kW RO F4
R31052F KVAR_A Reactive power (kvar), phase A kvar RO F4
R31054F KVAR_B Reactive power (kvar), phase B kvar RO F4
R31056F KVAR_C Reactive power (kvar), phase C kvar RO F4
R31058F KVA_A Apparent power (kVA), phase A kVA RO F4
3
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