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1

 

USB Interface Connection 

Users can remotely control the power supply via PC over the USB interface. Upon installation of the USB driver, the 
PC can control the instrument over virtual COM.   

Connecting Instrument to PC 

1. Download the USB drivers from www.bkprecision.com .

2. Connect the included USB cable to the power supply and the USB port on the PC.

3. When Windows recognizes the USB connection, do not follow the default Windows driver installation wizard.
Simply run the setup file from the downloaded USB drivers and follow the prompt to install drivers.

4. The computer will recognize the instrument as a USB (virtual COM) device, meaning it will be detected as a serial
COM port. Windows will automatically assign a COM port to the instrument. Please verify which COM port
Windows has assigned by going into Device Manager.

1.1 

USB (Virtual COM) Configuration 

The following serial port settings are used by the power supply. 

Baudrate: 9600

Data bits: 8

Parity: None

Stop bits: 1

Flow Control: None

2

 

PC Software 

2.1 

General Functions and Display 

Note:

  The power supply must be in Normal Mode and operated as a standalone equipment (not connected in 

series or parallel with multiple supplies) for PC interface control. 

The remote control PC software will display all output voltage, current, and power readings. Voltage and current 
values can be set using either the text box or slide bar. The output status is shown on the display panel and can be 
clicked to set the power supply output ON or OFF. 

Содержание 1865B

Страница 1: ...Model 1685B 1687B 1688B Switching DC Power Supplies PROGRAMMING MANUAL Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com...

Страница 2: ...onnection 2 1 1 USB Virtual COM Configuration 2 2 PC Software 2 2 1 General Functions and Display 2 2 2 External Timed Program 5 2 3 Internal Preset Memory 6 2 4 Data Log 7 2 5 Settings 8 2 6 Power Su...

Страница 3: ...will be detected as a serial COM port Windows will automatically assign a COM port to the instrument Please verify which COM port Windows has assigned by going into Device Manager 1 1 USB Virtual COM...

Страница 4: ...ting panel Use to set output value and output On Off 4 File panel Use to save load and print data 5 File description input Use to enter description of program or log file 6 Program running cycle setti...

Страница 5: ...2 2 Display Panel Figure 2 3 Output Configuration Panel You can directly type the desired output voltage and output current and then click Set button to set the value or use the slide bar to adjust t...

Страница 6: ...d program Values can be configured using the slide bar or set incrementally by pressing the left and right arrow keys on your keyboard 3 Specify desired number of running cycles Up to 999 running cycl...

Страница 7: ...ct and save Presets 4 To retrieve power supply s stored presets click the Read from PS button 5 Retrieved data will be shown in red if they exceed the present preset upper voltage and current limit va...

Страница 8: ...a log to a csv file enter Log Name in text box and click the Save icon The log can be retrieved or printed by clicking the Load and Print icons Time Frame Concept of Data Log The data logging function...

Страница 9: ...Upper Limit UVL Setting You can set your power supply s upper voltage limit value to safeguard your low voltage applications Current Upper Limit UCL Setting You can set your power supply s upper curre...

Страница 10: ...ronic load The following calibration instructions may be used by authorized technicians or calibration personnel only If you are not authorized do not attempt to calibrate the instrument yourself as i...

Страница 11: ...libration As shown in Figure 2 10 the software will automatically set the output voltage for each step Measure the actual output of the power supply by using a digital multimeter and input the actual...

Страница 12: ...current CR Return value OK CR Set current level current 000 XXX Input command CURR025 CR Return value OK CR Sets current level to 2 5 A Input command PROM preset 1 voltage preset 1 current preset 2 v...

Страница 13: ...dicates preset 1 voltage and current is 1 5 V and 1 5 A preset 2 voltage and current is 2 5 V and 2 5 A preset 3 voltage and current is 3 5 V and 3 5 A Input command RUNM memory CR Return value OK CR...

Страница 14: ...command GOVP CR Return value 152 OK Indicates upper voltage limit is set to 15 2 V Input command GOCP CR Return value current CR OK CR Get upper current limit of power supply current 000 XXX Input co...

Страница 15: ...V121015 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com...

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