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What are the available measurements of the Micrologic Type A Trip Unit?

Issue
Does the Mircologic Ammeter (A) Trip Unit have a Meter Module (MM)? If it does, what measurements are available?

Product Line
Powerpact, Masterpact, Micrologic, Compact NS, Compact NSX

Environment
Application using Micrologic circuit breaker in communication

Cause
Need  to know the available measurements and register on a Micrologic Ammeter trip unit.

Resolution
The Micrologic A trip unit does have Metering Module, but the only measurements available are current values. In the table below, the registers accessible in the Ammeter trip unit are visible.

Register Number of
Registers
Read / Write Scale Unit Format Interval Description Label
1016 1 R x 1 A INT 0..32767 RMS current on phase A. I_RMS[0]
1017 1 R x 1 A INT 0..32767 RMS current on phase B. I_RMS[1]
1018 1 R x 1 A INT 0..32767 RMS current on phase C. I_RMS[2]
1019 1 R x 1 A INT 0..32767 RMS current on the neutral .1 I_RMS[3]
1020 1 R x 1 A INT 0..32767 Maximum rms current in registers 1016, 1017, 1018 and 1019. I_Max
1021 1 R x 1 A INT 0..32767 Ground-fault current: if this current exceeds 32767 A, the register blocks at 32767.2 I_RMSGnd
1022 1 R x 1 mA INT 0..32767 Earth-leakage current: if this current exceeds 32767 A, the register blocks at 32767.3 I_RMSVigi

Use Address xx + 200 for the Meter Module if an IFE or IFM module is not be used in communication.

See link below for more information,
Modbus™ Communications System for Micrologic™ A, P, and H Trip Units 0613IB1201 - Modbus Register List
Powerpact P, R, and Masterpact NW, NT Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Trip Units 48049-136-05 - Instruction Bulletin


Legacy KB System (APS) Data: RESL209809 V1.0, Originally authored by AnVa on 11/29/2012, Last Edited by AnVa on 11/29/2012
Related ranges: Communication with Micrologic trip units, PowerSCADA Expert 7.2
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