DY-RAIN communication driver is the driver to communicate with electronic rainfall controller of Dongyoung in Korea.
<Figure 1> is read setting example of DY-RAIN communication driver.
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| <Figure 1> Read setting example of DY-RAIN communication driver |
Device part of <Figure 1> input Com Port(COM1), Baud Rate(fixed to 9600), Parity Bit(0), Data Bit(8), Stop Bit(1) respectively, according to setting of controller.
Also you can input 'rainfall analog input tag', weather to 'time reftesh'( 0 = not use, 1 = use, default : 0) and weather to 'truncate readed data'( 0 = not use, 1 = use, default : 0) by using option part.
Rainfall analog input tag use for data saving from 'P:' read command.
DY-RAIN communication driver’s read schedule
Read schedule setting parameters are as follows:
1) Station – Don't care.
2) Read Type – Read type = N: , S:
3) Read Start Address – Don't care.
4) Save start address for Communication Server – Saving start address of Communication Server.
5) Read Size – fixed to according read type. ( N: = 2, S: = 11 WORD data )
Read schedule example)
READ, , N:, 0, 0, 2,
READ, , S:, 0, 2, 11,
<Table 1> is data saving address and contents of DY-RAIN communication driver.
Read type |
Read size |
Contents | Data Saving Address |
N: |
2 |
Read of rainfall of a hour and a day | Start Add + 0 = rainfall of a hour Start Add + 1 = rainfall of a day Start Add + 0 of DWORD = Total rainfall. |
S |
11 |
Read of RTU information | Start Add + 0 = year of current Start Add + 1 = month of current Start Add + 2 = day of current Start Add + 3 = hour of current Start Add + 4 = minute of current Start Add + 5 = second of current Start Add + 6 = year of ROM version Start Add + 7 = month of ROM version Start Add + 8 = day of ROM version Start Add + 9 = status 0 Start Add + 10 = status 1 |
| <Table 1> Data saving address and contents of DY-RAIN communication driver | |||
You can write the setting value by using write settings.
Bit Write
Bit write setting parameters are as follows:
1) PORT Port no. (0 ~ 255)
2) STATION Don't care.
3) ADDRESS Don't care
4) Extra1 Write command.
R: = Reset of RTU,
T: = Time synchronization with computer,
P: = Saved data read of RTU. After data read, the readed data store in 'rainfall analog input tag'.
Also, read data start time and end time have to set before 'P:' command.
EOT = Send EOT signal to RTU,
RST = Clear saved data of RTU.
5) Extra2 Don't care.
Write example 1)
Port : 0, Station : 0, Address : 0000, EXTRA1 : R:, EXTRA2 :
The setting parameter shown above is a reset example of RTU.
Word Write
Word write setting parameters are as follows:
1) PORT Port no. (0 ~ 255)
2) STATION Don't care.
3) ADDRESS Don't care.
4) Extra1 Write command.
P: = Read data time setting command.
5) Extra2 Read data time type when 'P:' command.
0 = start year of read data,
1 = start month of read data,
2 = start day of read data,
3 = start hour of read data,
10 = end year of read data,
11 = end month of read data,
12 = end day of read data,
13 = end hour of read data.
Write example 1)
Port : 0, Station : 0, Address : 0000, EXTRA1 : P:, EXTRA2 : 0, Write Data : 2013,
The setting parameter shown above is a start year( = 2013) of read data write example.