Eaton PT 10 Instruction Manual page 44

Appendix A - Modbus Communication Port Setting
Table 11. Remote Control.
Control
Group Definition
Reset Reset trip
Reset powered up indication
Reset peak demand watts
Reset energies
Reset operations count
Reset runtime
Reset all min/max values
Reset min/max currents
Reset min/max line-to-line voltages
Reset min/max line-to-neutral voltages 0
Reset trip count
Reset temperature
Reset all diagnostics information
Control
Group Definition
Open/Close Open Breaker (for 2 seconds
Breaker opens relay which is assigned
to function "Open Command")
Close Breaker (for 2 seconds
closes relay which is assigned
to function "Close Command")
Relay Remote Relay Output
Control
A.3.8 Date and Time
The trip unit supports Modbus master to read real-time clock
information. Eight registers, starting from register number
402921, are used for this information, as defined in Table
A10. Detailed information is listed in Table A12.
Table 12. Real Time Clock
Modbus Register
Definition Number
Month 402921
Day 402922
Year 402923
Day of week 402924
Hour 402925
Minute 402926
Second 402927
1/100th second 402928
40 PT UNIT USER MANUAL APRIL 2023 www.eaton.com.cn
Byte 2 Byte 1 Byte 0
0 0 2
0 0 3
0 0 4
0 0 8
0 1 2
0 1 3
0 1 4
0 1 13
0 1 14
1 15
0 5 1
0 5 2
0 5 3
Byte 2 Byte 1 Byte 0
1 0 0
1 0 1
4 1: Enabled 1: Relay 1
2: Disabled 2: Relay 2
3: Relay 3
Modbus Register
Address Data Range
0x0B68 1-12
0x0B69 1+31
0x0B6A
1 = Sunday
0x0B6B
7 = Saturday
0x0B6C 0-23
0x0B6D 0-59
0x0B6E 0-59
0x0B6F
A.3.9 Internal Diagnosis
The trip unit supports internal Modbus diagnostics to moni-
tor internal Modbus port communication with function code
08. For different sub-function codes, diagnostics informa-tion
is listed in Table A13.
Table A13. 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 check 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 MCU3 Firmware Version
33 MCU3 Firmware Reversion
34 MCU3 Firmware Build
35 USB Version
36 USB Reversion
37 Reset block of registers