52
11 Modbus register map
PXR tRiP units foR PoweR Defense molDeD case ciRcuit bReakeRs
MN012007EN March 2019 www.eaton.com
11.3.2 Real-time data object registers
The data changing in real time, such as current, voltage, power, etc. are shown in the table
below. Real time data can be obtained either in IEEE floating point or in fixed point format.
For data shown in fixed point format, each result would be the real time data multiplied by
a scale factor. The scale factors are shown as the last column in the table. Energy objects
can be only obtained in fixed point format.
Each data object occupies two registers (four bytes) in length except for certain energy
objects. These energy objects occupy four registers. Since these objects have the capability
to change in real time, a complete data object must be obtained in a single transaction to
avoid data tearing. Attempting to access a partial data object will result in an exception code
84. Refer to a later section entitled “Exception codes”.
Register number
Register
address (HeX)
objects
trip unit
ieee
float
fixed
point (fP)
ieee
float
fixed
point (fP)
Descriptions
units
fp scale
factor
PXR
20/20D
PXR
25
PXR
25mP
404609
406145
1200
1800
High byte is primary status, low byte is
secondary status (see Section 11.3.8.2)
YES
YES
YES
404610
406146
1201
1801
Cause of status (see Section 11.3.8.2)
YES
YES
YES
404611
406147
1202
1802
IA
A
10
YES
YES
YES
404613
406149
1204
1804
IB
A
10
YES
YES
YES
404615
406151
1206
1806
IC
A
10
YES
YES
YES
404617
406153
1208
1808
IG
A
10
YES
YES
YES
404619
406155
120A
180A
IN
A
10
YES
YES
YES
404623
406159
120E
180E
VAB
V
10
YES
YES
404625
406161
1210
1810
VBC
V
10
YES
YES
404627
406163
1212
1812
VCA
V
10
YES
YES
404631
406167
1216
1816
VAN
V
10
YES
YES
404633
406169
1218
1818
VBN
V
10
YES
YES
404635
406171
121A
181A
VCN
V
10
YES
YES
404641
406177
1220
1820
Peak Ia demand
A
10
YES
404643
406179
1222
1822
Peak Ib demand
A
10
YES
404645
406181
1224
1824
Peak Ic demand
A
10
YES
404649
406185
1228
1828
Peak In demand
A
11
YES
404651
406187
122A
182A
Real 3 phase power
W
1
YES
YES
404653
406189
122C
182C
Reactive 3 phase power
Vars
1
YES
YES
404655
406191
122E
182E
Apparent 3 phase power
VA
1
YES
YES
404659
406195
1232
1832
Power factor
100
YES
YES
404661
406197
1234
1834
Frequency
Hz
10
YES
YES
404665
406201
1238
1838
minimum Ia demand
A
10
YES
404667
406203
123A
183A
minimum Ib demand
A
10
YES
404669
406205
123C
183C
minimum Ic demand
A
10
YES
404673
406209
1240
1840
minimum In demand
A
10
YES
404697
406233
1258
1858
Real power peak demand
W
1
YES
YES
404719
406255
126E
186E
Product ID
YES
YES
YES
404721
406257
1270
1870
Frequency
Hz
100
YES
YES
406259
1872
Forward energy
KWh
1
YES
YES
406261
1874
Reverse energy
KWh
1
YES
YES
406263
1876
Total energy
KWh
1
YES
YES
406271
187E
Apparent energy
KVAh
1
YES
YES
404765
406301
129C
189C
Temperature
C
1
YES
YES
YES
406305
18A0
Forward energy
Wh
1
YES
YES
406309
18A4
Reverse energy
Wh
1
YES
YES
406313
18A8
Total energy
Wh
1
YES
YES
406329
18B8
Apparent energy
VAh
1
YES
YES