Eaton Power Xpert Release PXR 20 - 9.2 Real-time breaker status; 9.3 Real-time data registers

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9. Modbus register map
POWER XPERT® RELEASE TRIP UNIT FOR MAGNUM PXR CIRCUIT BREAKERS MN013015EN January 2022 www.eaton.com
Table 18. Modbus diagnostics.
Sub-function code Action
0 Echo query
1 Restart communication
4 Force listen
10 Clear counters
11 Modbus UART bus message count
12 Modbus UART CRC error count
13 Exception count
14 Slave message count
15 Slave no response count
16 Slave NAK count
17 Slave busy count
18 Modbus UART over run error count
20 Clear Modbus UART counters
23 Modbus UART framing error count
24 Modbus UART noise error count
25 Modbus UART parity error count
26 MCU1 firmware version
27 MCU1 firmware reversion
28 MCU1 firmware build
29 MCU2 firmware version
30 MCU2 firmware reversion
31 MCU2 firmware build
32 USB version
33 USB reversion
34 Reset block of registers
9.2 Real-time breaker status
Input status bits 1001 through 1032 are available using func-
tion code 2. The status definitions are defined in Table 19.
The first 16 bits are the actual status state while the last 16
bits indicate if the corresponding status state is supported
by the trip unit and valid.
Table 19. Modbus breaker status.
Register
number
Address
hex
Input status descriptions Register
number
Address
hex
Validity
1001 0x03E8 Breaker is in the closed position. 1017 0x03F8 Breaker is in the closed position is valid.
1002 0x03E9 Un-acknowledged trip condition. 1018 0x03F9 Un-acknowledged trip condition is valid.
1003 0x03EA Active alarm. 1019 0x03FA Active alarm is valid.
1005 0x03EC Maintenance mode is active. 1021 0x03FC Maintenance mode is active is valid.
1006 0x03ED Test mode is active. 1022 0x03FD Test mode is active is valid.
1010 0x03F1 Long delay pickup is active. 1026 0x0401 Long delay pickup is active is valid.
1011 0x03F2 Zone interlock is active. 1027 0x0402 Zone interlock is active is valid.
1013 0x03F4 Ground is configured source ground. 1029 0x0404 Ground is source ground is valid.
9.3 Real-time data registers
The ata changing in real time, such as current, voltage,
power, etc. is shown in the Table 19. Real-time data can be
read either in 32-bit IEEE floating point or in 32-bit integer
format. For integer data, the value is multiplied by a scale
factor shown in the last column. Data objects are two
registers (4 bytes) or four registers (8 bytes) in length. Since
these objects have the capability to change in real-time, a
complete data object must be read in a single transaction to
avoid data tearing.