Modbus - Measured Variables - M-system 53U Operating Manual

MODBUS - MEASURED VARIABLES

Measured variables, except for the nth harmonic distortion, are read out as signed 32-bit integer.
Each variable has different engineering unit (Refer to the table below). For example, when 40000 is read at the address 41
for the 1 – N delta voltage, the actual voltage value equals to 400.0 V = 40000 × 0.01, as the engineering unit for this item is
V/100 (0.01 V).
Readable range for each parameter depends upon the parameter type, as shown in the table below. For example, Current unit
is applied to Line current or Neutral current, and Voltage unit is applied to the 1 – N delta voltage or the minimum value
voltage.
PARAMETER
Current
Voltage
Active power
Reactive power
Apparent power
Power factor
Frequency
Active energy
Reactive energy
Apparent energy
Active energy deviation
Energy count time
Harmonic
Phase angle between phase voltages
*1. Version 2.40 or earlier: Reset to 0 when exceeding the max. value, count is continued. Counter pulse output is stopped.
Version 2.41 or later: Reset to 0 when exceeding the max. value, count is continued. Counter pulse output is continued.
*2. Stops at either -99 999 999.9 or 99 999 999.9.
UNIT RANGE
mA 0 to 2 000 000 000 mA
V/100 0 to 20 000 000.00 V
W -2 000 000 000 to 2 000 000 000 W
var -2 000 000 000 to 2 000 000 000 var
VA 0 to 2 000 000 000 VA
1/10 000 -1.0000 to 1.0000
Hz/100 0 or 40.00 to 70.00 Hz
kWh/10 0 to 99 999 999.9 kWh*
kvarh/10 0 to 99 999 999.9 kvarh*
kVAh/10 0 to 99 999 999.9 kVAh*
kWh/10 -99 999 999.9 to 99 999 999.9 kWh*
h/10 0 to 99 999 999.9 hours*
%/10 0 to 999.9%
° -180 to +180°
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
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