Function 43-15: Read Date and Time
Structure of Modbus Read Date and Time Messages
Request
|
Definition |
Number of Bytes |
Value |
Example |
|---|---|---|---|
|
Server number |
1 byte |
0x2F |
47 |
|
Function code |
1 byte |
0x2B |
43 |
|
Sub-function code |
1 byte |
0x0F |
15 |
|
Reserved |
1 byte |
0x00 |
Reserved |
Response
|
Definition |
Number of Bytes |
Value |
Example |
||
|---|---|---|---|---|---|
|
Server number |
1 byte |
0x2F |
47 |
||
|
Function code |
1 byte |
0x2B |
43 |
||
|
Sub-function code |
1 byte |
0x0F |
15 |
||
|
Reserved |
1 byte |
0x00 |
Reserved |
||
|
Date and time(1) |
byte 1 |
Not used |
1 byte |
0x00 |
Not used |
|
byte 2 |
Year |
1 byte |
0x0A |
Year 2010 |
|
|
byte 3 |
Month |
1 byte |
0x0B |
Month of November |
|
|
byte 4 |
Day of the month |
1 byte |
0x02 |
Second day of the month |
|
|
byte 5 |
Hour |
1 byte |
0x0E |
14 hours |
|
|
byte 6 |
Minute |
1 byte |
0x20 |
32 minutes |
|
|
byte 7 and byte 8 |
Millisecond |
2 bytes |
0x0DAC |
3.5 seconds |
|
|
(1) Refer to DATETIME. |
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