MK Electronics DT Series communication driver

MK Electronics DT Series communication driver is the driver to communicate with digital panel meter(DPM), automatic power factor corrector of MK Electronics in Korea.

1. Read Settings

<Figure 1> is read setting example of MK Electronics DT Series communication driver.

<Figure 1>  Read setting example of MK Electronics DT Series communication driver

Device part of  <Figure 1> input Com Port(COM1), Baud Rate(9600), Parity Bit(0), Data Bit(8), Stop Bit(1) respectively, according to setting of controller.

Also you can set 'mode of DT series'( 0 : Master, 1 : Slave, default = 0) by using option part.

MK Electronics DT Series communication driver read schedule

Read schedule setting parameters are as follows:

1) Station – 1 ~ 255 station number.

2) Read command – fixed to 08.

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 1.

Read schedule example)

READ,     1,     08,    0,    0,   1,

MK Electronics DT Series communication driver store the same data in WORD, DWORD, FLOAT memory, but the data format are different.

If you click the icon  in protocol option part at <Figure 1>, you can see the dialogue box such as <Figure 2>. you can also set read schedule by using this part. 

<Figure 2> Example of MK Electronics DT Series communication driver’s Option dialog box

You can set read schedule by using , , button and listbox of <Figure 2>.

Also, you can set set mode of DT series by using the part of 'DT Series Slave Mode' shown in <Figure 2>.

<Figure 3> Example of  MK Electronics DT Series communication driver’s read schedule Add/Edit dialog box

When you click Add button or Edit button in dialogue box of <Figure 2>, dialogue box of <Figure 3> is shown.

2. Write settings

You can read and write by using 'write settings'. 

Digital Write

Digital write and analog write have the same setting parameters except output value. 

Analog Write 

Analog write setting parameters are as follows:

1)  PORT                   Port no. (0 ~ 255)

2)  STATION             1 ~ 255 station number.

3)  ADDRESS          data saving start address when 08 read command.

4)  Extra1                  read/write command = 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24. ( refer to <Table 1> )

5) Extra2                   decimal point, 1 ~ 5 = 1 ~ 5 decimal point, 0 = don't use decimal point.

<table 1> is read/write command and contents of MK Electronics DT Series communication driver.

Write example 1)

PORT:0,  station:1, ADDRESS:0020, Extra1: 08,  Extra2 : 0

The setting parameter shown above is read request command example of station 1 MK DT SERIES controller.

After reading, the readed data save at 20 WORD, DWORD, FLOAT memory.

3. Connection of main power and communication cable

Connection of main power and communication cable are as follows:

Connection of main power

Please connect 220V AC or 110V AC main power to 9, 10 connector of  MK Electronics DT Series controller such as <Figure 4>.

<Figure 4> Connection example of main power and communication cable to MK Electronics DT Series controller

Connection of communication cable

Please connect RS-485 communication cable to 7 ( + ), 8( - ) connector.

RS-485 of computer                MT Series

 +   -----------------------------------  7( + ) connector

 -   -----------------------------------  8( - ) connector

<Figure 5> is appearance of MK Electronics DT Series controller. 

<Figure 5> Appearance of MK Electronics DT Series controller

4. Setting of station, baud rate

MK DT Series controller can set station, baud rate, ... by using setting button of front panel. ( refer to <Figure 5> )

1) Press Mode -> Set -> Mode button. Then, will be entered to setting mode.

2)  Press 'SET' button. Then will be displayed 'Id-SE' at screen.

3) Select station number by using 'Right', 'Up' button and press 'SET' button.

4) Please press 'MODE' button several times. Then will be displayed 'b9600' at screen.

5) Select baud rate among 2400, 4800, 9600 by using 'Right', 'Up' button and press 'SET' button.

6) Please return to operation mode by pressing 'SET' button.