Modbus Registers
Eaton Power Xpert Gateway PXGX PDP Card User’s Guide 164202122—Rev 1
64
Breaker Data and Alarms
This section contains:
l
Sample names of breaker parameters along with the register numbers for Breaker #1
l
Instructions for calculating the register numbers for other breakers
l
Breaker alarms
Breaker #1 Data Registers (FC 04)
To specify a specific breaker, use a Unit ID for breaker data along with the register number for the specific
breaker.
For example, “Watts in Phase A” is register 1055 for Breaker #1. This statement is true for any panel. To
specify a specific panel for breaker data, use the panel's Unit ID in the Modbus program. For Panel #6
(Unit ID 23), the Modbus program would be set as follows:
IP: <IP address of PDP>
Unit ID: 23
Starting Register: 1055
Number of registers: 2
Function code: 04
The Modbus program would return a value of the watts in Phase A for Breaker #1 in Panel #6 of the PDP at
the specified IP address.
Table 10. Panel Sample Alarms (FC 02)
Name
Coil/Status Address
Data Type
Neutral Overload
1219
BOOL
Panel Under Voltage
1238
BOOL
Panel Over Voltage
1242
BOOL
Panel Under Over Frequency
1248
BOOL
Branch Breaker Overload Warning
1249
BOOL
Branch Breaker Overload
1250
BOOL
Main Breaker Overload Warning
1253
BOOL
Main Breaker Overload
1254
BOOL
Table 11. Breaker #1 Sample Data Registers (FC 04)
Name
Register
Data Type
Bytes
Display Name
1000
STRING
64
Number of Phases
1032
UINT
2
Breaker Rating
1033
UINT
4
Breaker Warning
1035
UINT
2
Breaker Overload
1036
UINT
2
AC Current Phase A
1037
FLOAT
4
AC Current Phase B
1039
FLOAT
4
AC Current Phase C
1041
FLOAT
4
AC MAX Current Phase A
1043
FLOAT
4