Speed Chiller Controller Communication Driver

Speed Chiller Controller is driver to communicate with cooler controller device of Sam Jung Eng Co., Ltd, in Korea.

Reference) Speed Chiller Controller driver's Setting and operation status value reads and saves the saved value from 'WorkDirectory\SCAN' folder when communication program Start/Exit. But in case of that there isn't saved value, default setting value of each device is 25.2 and operation status is Off.

1. Read settings

<Figure 1> is read setting example of Speed Chiller Controller communication driver.

<Figure 1> Read setting example of Speed Chiller Controller 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 device.

Speed Chiller Controller driver's read schedule

Read schedule setting parameters are as follows :

1)    STATION – Input device number.

2)    Read Command – Fixed to DATA command.( Refer to <Table 1> )

3)    Read Start Address – Input cooler number between 0 and 9.

4)    Save Start Address for Communication Server – Saving start address of Communication Server.

5)    Read Size - The number of data to be read. (Always fixed to 1, Refer to <Table 1>)

Read schedule example)

READ,     1,  DATA,     2,    0,   1,

<Table 1> is save address of read value and contents of Speed Chiller Controller driver's DATA read command.

Read value of Speed Chiller Controller communication driver is saved to WORD/DWORD/FLOAT memory(Format of saved value is difference) as same value.

But, in case of Current/Setting temperature value, real value is saved to FLOAT memory, and real value x 10 is saved to WORD/DWORD memory.

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

<Figure 2> Speed Chiller Controller driver's Option dialog box

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

<Figure 3> Speed Chiller Controller driver's read schedule Add/Edit dialog box

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

2. Writing settings

You can change setting value, etc by using Speed Chiller Controller driver's writing settings.

 

Digital Write

Digital write and analog write have the same setting parameters except output value(0 or 1).

 

Analog Write

Analog write setting parameters are as follows:

1)  PORT                  Connected port number. (Not COM number)

2)  STATION              Input device number.

3)  ADDRESS            Input cooler number between 0 and 9.

4)  Extra1                  Input command of RUN and SET. ( Refer to <Table 2> )

5)  Extra2                  Don't care.

Command	Command Description	ADDRESS Value	Output Value Range
RUN	Run/Stop command	Cooler number between 0 and 9	0 = Off, 1 = On
SET	Setting temp value change		Input the temperature value to set really as decimal 1 digit
<Table 2> Writing command type of Speed Chiller Controller driver and output parameter setting range

Write example 1)

PORT : 0   STATION : 1   ADDRESS : 0002  EXTRA1 : RUN  EXTRA2 : 0

If you set as above and analog writing, you can On/Off the no.2 cooler of no.1 device for Speed Chiller Controller connected with no.0 port.

 

Write example 2)

PORT : 0   STATION : 1   ADDRESS : 0002  EXTRA1 : SET  EXTRA2 : 0

If you set as above and analog writing, you can change no.2 cooler's setting temperature of no.1 device for Speed Chiller Controller connected with no.0 port as designated value (decimal 1 digit real value).

 

33. Communication cable and power connection

Connect communication cable and basic power of Speed Chiller Controller device.

 

Communication cable connection

Connect RS-485 +, - of computer side to RS-485 communication terminal +, - of Speed Chiller Controller device such as <Figure 4>.

<Figure 4> Appearance of connecting communication cable and basic power etc to Speed Chiller Controller device

Basic power connection

Connect 220V AC basic power to power input section of Speed Chiller Controller device such as <Figure 4>.

<Figure 5> is appearance of Speed Chiller Controller device.

<Figure 5> Front appearance of Speed Chiller Controller device