53U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-6485-B Rev.21 P. 27 / 52
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
UNIT
RANGE
Current
mA
0 to 2 000 000 000 mA
Voltage
V/100
0 to 20 000 000.00 V
Active power
W
-2 000 000 000 to 2 000 000 000 W
Reactive power
var
-2 000 000 000 to 2 000 000 000 var
Apparent power
VA
0 to 2 000 000 000 VA
Power factor
1/10 000 -1.0000 to 1.0000
Frequency
Hz/100
0 or 40.00 to 70.00 Hz
Active energy
kWh/10
0 to 99 999 999.9 kWh*
1
Reactive energy
kvarh/10 0 to 99 999 999.9 kvarh*
1
Apparent energy
kVAh/10 0 to 99 999 999.9 kVAh*
1
Active energy deviation
kWh/10
-99 999 999.9 to 99 999 999.9 kWh*
2
Energy count time
h/10
0 to 99 999 999.9 hours*
1
Harmonic
%/10
0 to 999.9%
Phase angle between phase voltages
°
-180 to +180°
*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.
