DAEKYUNG DPM Communication Driver is the driver to communicate with DPM meter of DaeKyung G & Tech Co., Ltd. in Korea.
<Figure 1> is read setting example of DAEKYUNG DPM communication driver.
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| <Figure 1> Read setting example of DAEKYUNG DPM communication driver |
Device part of <Figure 1> input Com Port(COM1), Baud Rate(9600), Parity Bit(0), Data Bit(8), Stop Bit(1) respectively.
DAEKYUNG DPM controller can set baud rate (2400, 4800, 9600, 19200) and dot position by using setting button of front panel.
DAEKYUNG DPM communication driver’s read schedule
DAEKYUNG DPM communication driver's read schedule input 'READ' one line.
Read schedule example)
READ,
You can write the setting value by using write settings.
Bit Write
Bit write and word write have the same setting parameters except output value. ( 0 , 1 )
Word Write
Word write setting parameters are as follows:
1) PORT Port no. (0 ~ 255)
2) STATION DPM address = 0 ~ 999.
3) ADDRESS Outputed data saving address of WORD, DWORD,FLOAT memory.
4) Extra1 Don't card.
5) Extra2 0 ~ 5 Dot position.
Write example 1)
PORT : 0 STATION : 1 ADDRESS : 0020 EXTRA1 : EXTRA2 : 1
The setting parameter shown above is an example of write(decimal number) to DPM address 1 with 1 dot position.
After write, save the writed value to 20 WORD, FLOAT, DWORD memory address.
Write example 2)
PORT : 0 STATION : 2 ADDRESS : 0021 EXTRA1 : EXTRA2 : 2
The setting parameter shown above is an example of write(decimal number) to DPM address 2 with 2 dot position.
After write, save the writed value to 21 WORD, FLOAT, DWORD memory address.
Write example 3)
PORT : 0 STATION : 3 ADDRESS : 0022 EXTRA1 : EXTRA2 : 4
The setting parameter shown above is an example of write(decimal number) to DPM address 3 with 4 dot position.
After write, save the writed value to 22 WORD, FLOAT, DWORD memory address.
Connection of communication cable and main power line are as follows.
Connection of RS-485 communication cable
Please connect RS-485 communication cable between DAEKYUNG DPM and computer.
DAEKYUNG DPM side Computer side
'3rd' connector form left ( R+) ------------------------- T+
'4th' connector form left ( R-) ------------------------- T-
Connection of main power line
Please connect main powert to '1st'( +5V DC), '2nd'( 0V ) connector such as <Figure 2>.
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| <Figure 2> Main power and communication connector of DAEKYUNG DPM controller |
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| <Figure 3> Appearance of DAEKYUNG DPM controller |
Setting of meter address, baud rate
You can set metter address and baud rate by using 'setting button'. (2 button of front panel)