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Modbus Address
Hex
Decimal
10
Energy registers should be reset after a format change.
11
Entities to be monitored against limits are identified by Modbus address. Entities occupying multiple Modbus registers, such as floating point values, are identified by the lower register address. If any of
the 8 limits is unused, set its identifier to zero. If the indicated Modbus register is not used or is a non-sensical entity for limits, it will behave as an unused limit.
12
There are 2 setpoints per limit, one above and one below the expected range of values. LM1 is the "too high" limit, LM2 is "too low". The entity goes "out of limit" on LM1 when its value is greater than the
setpoint. It remains "out of limit" until the value drops below the in threshold. LM2 works similarly, in the opposite direction. If limits in only one direction are of interest, set the in threshold on the "wrong"
side of the setpoint. Limits are specified as % of full scale, where full scale is automatically set appropriately for the entity being monitored:
current FS = CT numerator * CT multiplier
voltage FS = PT numerator * PT multiplie
power FS = CT numerator * CT multiplier * PT numerator * PT multiplier * 3 [ * SQRT(3) for delta hooku
frequency FS = 60 (or 50)
power factor FS = 1.0
percentage FS = 100.0
angle FS = 180.0
13
THD not available shows 65535 (=0xFFFF) in all THD and harmonic magnitude registers for the channel when V-switch=4. THD may be unavailable due to low V or I amplitude, or delta hookup
(V only).
14
All 3 voltage angles are measured for Wye and Delta hookups. For 2.5 Element, Vac is measured and Vab & Vbc are calculated. If a voltage phase is missing, the two voltage angles in which it
participates are set to zero. A and C phase current angles are measured for all hookups. B phase current angle is measured for Wye and is zero for other hookups. If a voltage phase is missing,
its current angle is zero.
15
If any register in the programmable settings section is set to a value other than the acceptable value then the meter will stay in LIMP mode. Please read the comments section or the range for each
register in programmable settings section for acceptable values.
16
If V-Switch is 1 or 2 and protocol (ppp) is set to 3 (DNP) then meter will use the MODBUS RTU protocol as DNP is supported by V-Switch 3 or above.
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Electro Industries/GaugeTech
1
Description
Format
Doc# ES145721
Units or
6
Range
Resolution
#
Comments
Reg
MM-9
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