Date and time Settings
The TeSys Tera system has an internal clock and remembers the date and time for 12 hours without power.
The table lists the date and time settings for the Modbus RTU communication.
|
Address |
Register |
No. |
Function code |
RW |
X | Unit |
Type |
Range | Default value |
Svd |
Description |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
0x113B |
4412 |
1 |
0x03, 0x10 |
RW |
1 | – |
UINT16 |
1–31 |
1 |
Y |
Date |
|
0x113C |
4413 |
1 |
0x03, 0x10 |
RW |
1 | – |
UINT16 |
1–12 |
1 |
Y |
Month |
|
0x113D |
4414 |
1 |
0x03, 0x10 |
RW |
1 | – |
UINT16 |
2000–2099 |
2016 |
Y |
Year |
|
0x113E |
4415 |
1 |
0x03, 0x10 |
RW |
1 | – |
UINT16 |
0–23 (step 1) |
0 |
Y |
Hour |
|
0x113F |
4416 |
1 |
0x03, 0x10 |
RW |
1 | – |
UINT16 |
0–59 (step 1) |
0 |
Y |
Minute |
|
0x1140 |
4417 |
1 |
0x03, 0x10 |
RW |
1 | – |
UINT16 |
0–59 (step 1) |
0 |
Y |
Second |
|
0x1141 |
4418 |
2 | – | – | – | – | – | – | – | – |
Reserved |
|
0x1143 |
4420 |
1 |
0x03, 0x10 |
RW |
1 | – |
UINT16 |
0–1 |
0 |
N |
Update Date and time |
Write date and time to the following Modbus holding registers with address 4412, function code 16 (multiple holding registers), and number of register is 9.
For example, to update 01-Jan-2023 12:00:00, register values should be as below format:
| Parameter name | Register | Example data | Data format (Big-endian) |
|---|---|---|---|
|
Date |
4412 |
1 | 0x0001 |
|
Month |
4413 |
1 | 0x0001 |
|
Year |
4414 |
2023 | 0x07E7 |
|
Hour |
4415 |
12 | 0x000C |
|
Minute |
4416 |
0 | 0x0000 |
|
Second |
4417 |
0 | 0x0000 |
|
Reserved |
4418 |
0 | 0x0000 |
|
Update RTC |
4420 |
0 | 0x0001 |