46
9. Modbus register map
Power XPert® release triP unit for MagnuM PXr circuit breakers
MN013015EN January 2022 www.eaton.com
Table 28 shows the list of commands available. The PW
column indicates if the password must be written before
issuing the command.
Table 28. Modbus remote control commands.
register number
402901
402902
402903
address (hex)
0b56
0b55
0b54
Definition
Pw
command (hex)
Reset trip
No
0x0002
0xFD00
0xFFFF
Reset powered up indication
No
0x0003
0xFC00
0xFFFF
Reset peak demand watts
Yes
0x0004
0xFB00
0xFFFF
Reset energy
Yes
0x0008
0xF700
0xFFFF
Reset operations count
Yes
0x0102
0xFD00
0xFFFE
Reset runtime
Yes
0x0103
0xFC00
0xFFFE
Reset min/max currents
Yes
0x010D
0xF200
0xFFFE
Reset min/max line-to-neutral
voltages
Yes
0x010F
0xF000
0xFFFE
Reset min/max line-to-line
voltages
Yes
0x010E
0xF100
0xFFFE
Reset all min/max values
Yes
0x0104
0xFB00
0xFFFE
Reset trip count
Yes
0x0501
0xFE00
0xFFFA
Reset temperature
Yes
0x0502
0xFD00
0xFFFA
Reset all diagnostics
information
Yes
0x0503
0xFC00
0xFFFA
Open breaker - activates the
relay mapped to open breaker
pulsed
Yes
0x0000
0xFF01
0xFEFF
Close breaker - activates the
relay mapped to close breaker
pulsed
Yes
0x0001
0xFE01
0xFEFF
Enable maintenance mode
No
0x0008
0xF701
0xFEFF
Disable maintenance mode
No
0x0009
0xF601
0xFEFF
Activate relay 1 (if relay 1 is
mapped to remote control)
No
0x0101
0xFE04
0xFBFE
Deactivate relay 1 (if relay 1 is
mapped to remote control)
No
0x0201
0xFE04
0xFBFD
Activate relay 2 (if relay 2 is
mapped to remote control)
No
0x0102
0xFD04
0xFBFE
Deactivate relay 2 (if relay 2 is
mapped to remote control)
No
0x0202
0xFD04
0xFBFD
Activate relay 3 (if relay 3 is
mapped to remote control)
No
0x0103
0xFC04
0xFBFE
Deactivate relay 3 (if relay 3 is
mapped to remote control)
No
0x0203
0xFC04
0xFBFD
9.6 Date and time
The date and time are available via registers. The Modbus
client can synchronize the clock in the trip unit by writing the
time at regular intervals. The entire block of registers should
be written in a single command. A time change event is only
generated when the time difference between old and new is
greater than 60 seconds.
Table 29. Modbus date and time data.
function
code
register
number
address
(hex)
Definition
Value range
3, 4, 6, 16
2921
0x0B68
Month
1-12
3, 4, 6, 16
2922
0x0B69
Day
1-31
3, 4, 6, 16
2923
0x0B6A
Year
2015 - 2099
3, 4, 6, 16
2924
0xB6B
Day of week
1 = Sunday,
7 = Saturday
3, 4, 6, 16
2925
0x0B6C
Hour
0-23
3, 4, 6, 16
2926
0x0B6D
Minute
0-59
3, 4, 6, 16
2927
0x0B6E
Second
0-59
9.7 Event registers
The triggering of an event in the trip unit can provide histori-
cal data object values at the instant in time the event occurs
or occurring around the time of the event. The trip unit
categorizes the event information into summary, alarm, and
trip event data. A maximum of 200 summary events, 10
alarm events, and 10 trip events are stored. A single event
may place information into multiple objects. For example,
the occurrence of an event triggered by a circuit breaker trip
may provide both summary and trip information.
Access to event information is based on the selection of
event type and event ID. When the event type selection is
written in register 8193, the earliest and latest event ID can
be obtained in registers 8194 and 8196 respectively to deter-
mine the range of events saved for the selected event type.
Register 8198 is used to select the requested event ID. If
the request event exists in the trip unit, registers 8200
and 8202 provide the Previous Event ID and Next Event ID
respectively. If the requested event does not exist in the trip
unit, exception code 0x87 is returned.
The date and time when the requested event happened is
read in registers 8204 through 8211. This value corresponds
to the time of occurrence of the historical event.
Register 8212 provides an indication of the selected event
type’s data content. This is a constant value for the three
event types Modbus port supports.
Event data also provides a validity bit for each data object,
starting from register 8213. Bit 0 set to be 1 indicates that
the first data object is valid, bit 1 is used to indicate the
second data object is valid, and so on.