R9EWTU
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-6224 Rev.9 P. 15 / 21
MODBUS - MAPPING
■
PARAMETER TYPES
TYPE
WORD
UNIT
RANGE
Current
2
mA
0 to 2 000 000 000 mA
Voltage
2
V/100
0 to 20 000 000.00 V
Active power
2
W
-2 000 000 000 to 2 000 000 000 W
Reactive power
2
var
-2 000 000 000 to 2 000 000 000 var
Apparent power
2
VA
0 to 2 000 000 000 VA
Power factor
2
cos
φ
-1.0000 to 1.0000
Frequency
2
Hz/100
0 or 40.00 to 70.00 Hz
Active energy
2
kWh/10
0 to 99 999 999.9 kWh *
1
Reactive energy
2
kvarh/10
0 to 99 999 999.9 kvarh *
1
Harmonic distortion
1
%/10
0 to 999.9 %
Date/time
3
---
Each value is in BCD format.
Year value represented in the offset from 2000.
e.g. 100817160752h = Year 2010, August 17, 16:07:52
b48 b40 b39 b32 b31 b24 b23 b16 b15 b8 b7 b0
Year
Month
Day
Hour
Minute
Second
*1. Reset to 0 at overflow
■
ADDRESS
If base address and offset is given separately in the following tables, add both values to determine the address for a particular
parameter.
[Example]
Ch. 1, Line 1 current, Present value = 65 + 0 = 65
Ch. 1, Line 1 current, Max. value = 65 + 10 = 75
• Voltage and Frequency
PARAMETER
PRESENT
MAX
MIN
Delta voltage, 1 – 2
1
17
33
Delta voltage, 2 – 3
3
19
35
Delta voltage, 3 – 1
5
21
37
Phase voltage, Phase 1
7
23
39
Phase voltage, Phase 2
9
25
41
Phase voltage, Phase 3
11
27
43
Total voltage *
2
13
29
45
Frequency
15
31
47
*2. Total voltage
Single-phase/2-wire: Phase 1 voltage
Single-phase/3-wire: (Phase 1 + 3) / 2
Three-phase/3-wire: {Delta (1 – 2) + (2 – 3) + (3 – 1)} / 3
• Current
PARAMETER
BASE ADDRESS
BASIC UNIT
Ch. 1 Current
65
Ch. 2 Current
97
Ch. 3 Current
129
Ch. 4 Current
161
Ch. 5 Current
193
Ch. 6 Current
225
Ch. 7 Current
257
Ch. 8 Current
289
R9WTU-EP8
Ch. 9 Current
321
Ch. 10 Current
353
Ch. 11 Current
385
Ch. 12 Current
417
Ch. 13 Current
449
Ch. 14 Current
481
Ch. 15 Current
513
Ch. 16 Current
545
PARAMETER
OFFSET
PRESENT
MAX
MIN
Current, Line 1
+0
+10
+20
Current, Line 2
+2
+12
+22
Current, Line 3
+4
+14
+24
Neutral current
+6
+16
+26
Total current *
3
+8
+18
+28
*3. Total current
Single-phase/2-wire: Line 1 current
Single-phase/3-wire: (Line 1 + 3) / 2
Three-phase/3-wire: (Line 1 + 2 + 3) / 3
