M-system R7EWTU Instruction Manual page 11

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 400.0V = 40000 × 0.01, as the engineering unit for this item is
V/100 (0.01V).
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
Energy count time
Harmonic
Phase angle between phase voltages
*1. Reset to 0 at overflow.
■ MOMENTARY VALUE
ADDR.
WORD
Circuit 1 Circuit 2
1 4001 2
3 4003 2
5 4005 2
7 4007 2
9 4009 2
11 4011 2
13 4013 2
15 4015 2
33 4033
35 4035 2
37 4037
39 4039 2
41 4041
43 4043 2
45 4045
47 4047
49 4049 2
51 4051
53 4053
55 4055 2
57 4057
59 4059
61 4061 2
63 4063
65 4065
67 4067 2
69 4069
71 4071
73 4073 2
75 4075
77 4077
79 4079 2
81 4081
83 4083
85 4085 2
87 4087
UNIT
mA
V/100
W
var
VA
1/10 000
Hz/100
kWh/10
kvarh/10
kVAh/10
h/10
%/10
°
ID PARAMETER
I Current
U Voltage
P Active power
Q Reactive power
S Apparent power
PF Power factor
F Frequency
DIR Phase difference direction (0 = inductive or lag, 1 = capacitive or lead)
I1 Current, Line 1
I2 Current, Line 2
I3 Current, Line 3
IN Neutral current
U12 Delta voltage, 1 – 2
U23 Delta voltage, 2 – 3
U31 Delta voltage, 3 – 1
U1N Phase voltage, Phase 1
U2N Phase voltage, Phase 2
U3N Phase voltage, Phase 3
P1 Active power, Phase 1
P2 Active power, Phase 2
P3 Active power, Phase 3
Q1 Reactive power, Phase 1
Q2 Reactive power, Phase 2
Q3 Reactive power, Phase 3
S1 Apparent power, Phase 1
S2 Apparent power, Phase 2
S3 Apparent power, Phase 3
PF1 Power factor, Phase 1
PF2 Power factor, Phase 2
PF3 Power factor, Phase 3
DIR1 Phase difference direction, Phase 1 (0 = inductive or lag, 1 = capacitive or lead)
DIR2 Phase difference direction, Phase 2 (0 = inductive or lag, 1 = capacitive or lead)
DIR3 Phase difference direction, Phase 3 (0 = inductive or lag, 1 = capacitive or lead)
UT12 Phase angle between Phase 1 – 2 voltages
UT23 Phase angle between Phase 2 – 3 voltages
UT31 Phase angle between Phase 3 – 1 voltages
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
RANGE
0 to 2 000 000 000 mA
0 to 20 000 000.00 V
-2 000 000 000 to 2 000 000 000 W
-2 000 000 000 to 2 000 000 000 var
0 to 2 000 000 000 VAx
-1.0000 to 1.0000
0 or 40.00 Hz to 70.00 Hz
0 to 99 999 999.9 kWh*
1
0 to 99 999 999.9 kvarh*
1
0 to 99 999 999.9 kVAh*
1
0 to 99 999 999.9 hours*
1
0 to 999.9%
-180 to +180°
R7EWTU
UNIT
mA
V/100
W
var
VA
1/10 000
Hz/100
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mA
mA
mA
mA
V/100
V/100
V/100
V/100
V/100
V/100
W
W
W
var
var
var
VA
VA
VA
1/10 000
1/10 000
1/10 000
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°
°
°
EM-7818 Rev.2 P. 11 / 18