DIGITAL CONTROL ADAPTER OPTICAL ISOLATION ADAPTER
Supports USB, LAN, RS-232C, RS-485, and GPIB
- Resolution: 16-bit (1/65535)
- Isolation: Fiber optic cable
(For some models)
CONTROLLED BY VARIOUS INTERFACES
The CO/USB series is a line of digital interface adapters controlled by a computer, laptop, or programmable logic controller (PLC) for Matsusada Precision's DC power supplies, high voltage power supplies, AC power supplies, bipolar power supplies, and electronic loads. These products are ideal for enabling multifunctional and high-precision automatic inspection systems, 24/7 production lines, and various system equipment using power supply devices.
The interface adapters enable automation and labor-saving in manufacturing processes and speed up research and development, and also contribute to improving safety and reliability. In addition to high-resolution 16-bit (1/65535) control, it is equipped with various functions such as readback and status, making it suitable for various applications such as R&D that require high accuracy, quality testing that requires constant monitoring of power supply status, and manufacturing processes.
Optical isolation adapters, such as USB-OPT, CO-E32, CO-OPT2-9, etc., utilize fiber optic cables for digital communication, which enables extremely reliable communication even in noisy environments such as in factories and for long-distance control. By using optical fibers, they are electrically isolated, so safe operation is possible even in power supply configurations with potential differences. In addition, all models are designed to be ultra-compact, palm-sized, and can be installed anywhere. By using them in combination with Matsusada Precision's compact and lightweight power supplies and electronic loads, you can further take advantage of their space-saving features.
FEATURES AND BENEFITS
- LAN, USB, RS-232C, RS-485, and GPIB interface supported
- High Resolution: 16-bit (1/65535)
- Complete Isolation: Fiber optic cable (only optical link)
- Various Functions: Computer Control, Read Back, and Status
- Ultra-compact, placed anywhere
- Remote control by a Programmable Logic Control (PLC)
- CE marking approved (low voltage directive)
We also have a lineup of dedicated software, "PSS2", which enables sequence operation of various power supplies and CO/USB series manufactured by Matsusada Precision Inc. with simple set up.
Detailed datasheet of PSS2 is available. Please feel free to contact us.
Models
Optical isolation adapter
With optical communication, isolation control is performed. As complete isolation is provided by optical fiber, it can protect the unit against transients caused by surges, inductive lightning, external noise, etc.
Models | Interface | Supported models | Safety standards |
---|---|---|---|
CO-E32 | LAN | Supported model list | ![]() |
USB-OPT | USB | Supported model list | - |
CO-OPT2-9 | RS-232C | Supported model list | - |
CO-OPT2-25 | RS-232C | Supported model list | - |
CO-OPT4-25 | RS-485 | Supported model list | - |
CO-G32 | GPIB | Supported model list | ![]() |
Adapter for digital interface
Models | Interface | Supported models | Safety standards |
---|---|---|---|
CO-E32m | LAN | Supported model list |
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CO-U32m | USB | Supported model list |
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CO-MET2-9 | RS-232C | Supported model list | - |
CO-MET2-25 | RS-232C | Supported model list | - |
CO-MET4-25 | RS-485 | Supported model list | - |
CO-G32m | GPIB | Supported model list |
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Digital converter for analog control power supplies
The adapter offers digital control system to high voltage power supplies unavailable with digital interface as well as DC power supplies.
Models | Supported models | Safety standards |
---|---|---|
CO-HV | Supported model list |
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Control program
The program is used to gradually change the output of DC power supplies and high voltage power supplies that can be controlled by our power supply digital controller CO/USB series.
Models | Supported models | Safety standards |
---|---|---|
Sweep control program for CO/USB series | Supported model list | - |
Discontinued models
The following model is no longer available as we have stopped the production and sales.
Models | Supported models |
---|---|
CO-RG | RGJ series |
CO-RG-LH | RGJ series |
Specifications
Optical isolation adapter
With optical communication, isolation control is performed. As complete isolation is provided by optical fiber, it can protect the unit against transients caused by surges, inductive lightning, external noise, etc.
- Extremely safe operation is possible since there is no upper limit to the breakdown voltage theoretically.
- Stable communication is possible even in overly noise environment.
Example of communication with optical fiber
Example of communication with optical fiber

The optical adapter use is recommended under the following environment.
- Noisy environments such as factories (Example: Motors or coils are used near power supplies and loads)
- When there is a possibility of arcing or output short circuit.
LAN-adapter for optical communication CO-E32
This adapter is for control several power supplies with LAN.
Up to 32 units in total can be connected to one CO-E32.


Supported models
- Can be used to connect directly
- Models with optical interface option, -LGob
How to order
- When ordering, add "-CE" to Model No.
- Example: CO-E32-CE
For details, download the datasheet below.
USB adapter for optical communication USB-OPT
This adapter is for control several power supplies with USB.
Up to 32 units in total can be connected to one USB-OPT.


Supported models
- Can be used to connect directly
- Models with optical interface option, -LGob
For details, download the datasheet below.
RS-232C adapter for optical communication CO-OPT2-9/CO-OPT2-25
This adapter is for control several power supplies with RS-232C.
Up to 32 units in total can be connected to one CO-OPT2-9/CO-OPT2-25.



Supported models
- Can be used to connect directly
- Models with optical interface option, -LGob
Options
-L(#4): inch screws of D-sub fixing screws (#4)
Applicable to CO-OPT2-25
How to order
- Add Option No. to Model No. in alphabetical order.
- Example: CO-OPT2-25-L(#4)
For details, download the datasheet below.
RS-485 adapter for optical communication CO-OPT4-25
This adapter is for control several power supplies with RS-485.
Up to 32 units in total can be connected to one CO-OPT4-25.


Supported models
- Can be used to connect directly
- Models with optical interface option, -LGob
Options
-L(#4): inch screws of D-sub fixing screws (#4)
How to order
- Add Option No. to Model No. in alphabetical order.
- Example: CO-OPT2-25-L(#4)
For details, download the datasheet below.
GPIB adapter for optical communication CO-G32
This adapter is for control several power supplies with GPIB.
Total 32 units can be connected to one CO-G32.


Supported models
- Can be used to connect directly
- Models with optical interface option, -LGob
How to order
- When ordering, add "-CE" to Model No.
- Example: CO-G32-CE
For details, download the datasheet below.
Adapter for digital communication
LAN adapter for digital communication CO-E32m
This adapter is for control several power supplies with LAN.
Total 16 units can be connected to one CO-E32m.


Supported models
How to order
- When ordering, add "-CE" to Model No.
- Example: CO-E32m-CE
For details, download the datasheet below.
Adapter for connecting USB to digital interface, CO-U32m
This adapter is for control several power supplies with USB.
Up to 16 units in total can be connected to one CO-U32m.


Supported models
How to order
- When ordering, add "-CE" to Model No.
- Example: CO-U32m-CE
For details, download the datasheet below.
RS-232C adapter for digital communication CO-MET2-9/CO-MET2-25
This adapter is for control several power supplies with RS-232C.
Up to 16 units in total can be connected to one CO-MET2-9/CO-MET2-25.



Supported models
For details, download the datasheet below.
RS-485 adapter digital communication CO-MET4-25
This adapter is for control several power supplies with RS-485.
Up to 16 units in total can be connected to one CO-MET4-25.


Supported models
Options
-L(#4): inch screws of D-sub fixing screws (#4)
How to order
- Add Option No. to Model No. in alphabetical order.
- Example: CO-MET4-25-L(#4)
For details, download the datasheet below.
GPIB adapter for digital communication CO-G32m
This adapter is for control several power supplies with GPIB.
Up to 16 units in total can be connected to one CO-G32m.


Supported models
How to order
- When ordering, add "-CE" to Model No.
- Example: CO-G32m-CE
For details, download the datasheet below.
Digital convert adapter for analog power supplies
This digital conversion adapter provides a digital control system for high voltage power supplies that only have analogcontrol.
Digital communication is based on optical communication with high isolation performance, so it can be used for control over long distances.
Example of communication with a digital adapter

for Analog high voltage power supplies CO-HV
This adapter is ideal system for use when "There is distance between high voltage power supply and computer, used under noisy environment", "Connect Low voltage power supply units".


Supported models
AU, AUH, AK, AKP, XPg, XKg, AE/AF, ES, EJ, W, WA, WG, K12-R, XR series
Options
-L(Fc0.5): When optical fiber cable of 0.5 meters is required.
-L(Fc5): When optical fiber cable of 5 meters is required.
-L(Fc10): When optical fiber cable of 10 meters is required.
-L(Fc20): When optical fiber cable of 20 meters is required.
-L(Fc40): When optical fiber cable of 40 meters is required.
How to order
For no options
- When ordering, add the dedicated control cable name to Model No.
- Example: CO-HV(with CO-AU cable)
For options
- When ordering, add Option No. to the Model No in alphabetical order, and finally the dedicated control cable.
- Example: CO-HV-L(Fc10)(with CO-AU cable)
For CE marking
- When ordering, add the dedicated control cable name to the Model No, and finally "-CE".
- Example: CO-HV(with CO-AU cable) -CE
For CE marking with options
- When ordering, add Option No. to the Model No. in alphabetical order, and finally the dedicated control cable name and “-CE”.
- Example: CO-HV-L(Fc10)(with CO-AU cable) -CE
For details, download the datasheet below.
Sweep control program for digital converter

This program is used to gradually change the output of DC power supplies and high voltage power supplies that can be controlled by our power supply digital controller CO-HV series. Any settings are provided as for the voltage/current values when the output starts and reaches, and after the output starts. Following that, the output is activated accordingly.
It is very convenient for such applications like transformation process of the capacitor, aging of electronic components and burn-in testing of semi-conductor etc. where it is necessary to repeat the output by changing the output gently and a decided pattern.
Features and Benefits
- Fine setting of output voltage and output current is available by high-resolution of 16-bit.
- Each voltage value and each current value can be set individually.
- LAN, USB, RS-232C, RS-485 and GPIB communication are available.
Available models
- CO-HV (High Voltage power supply digital controller)
How to order
- To order, add "(s)" after the available Model No.
-
- Example:
- CO-HV(s) (with CO-AU cable)
Usage example
- Output voltage value setting
- Output current value setting
- Attained voltage value setting that can be set below value lower than (1).
- Attained current value setting that can be set below value lower than (2).
- Attained time setting
- Output voltage setting after attainment that is selected from 0 V, remain, or value before sweep
- Output current setting after attainment that is selected from 0 V, remain, or value before sweep
- Choose whether output status signal will be output or not
- Output ON
- Sweep ON
Dimensions
Download
-
CO/USB series Datasheet
Date: 2023-08-22 Rev.19
PDF (8,267 KB)
-
CO/USB Instruction Manual
Date: 2021-1-25 rev. 1.5
PDF (1,806 KB)
-
CO-G32m/CO-U32m/CO-E32m Instruction Manual
Date: 2023/7/24 rev 0.4
PDF (1,321 KB)
-
CO series USB Driver
Date: 2023-08-23 rev1.7.5
ZIP (6,617 KB)
The account registration is necessary for downloading
-
CO/USB series Datasheet
Date: 2023-08-22 Rev.19
PDF (8,267 KB)
-
CO/USB Instruction Manual
Date: 2021-1-25 rev. 1.5
PDF (1,806 KB)
-
CO-G32m/CO-U32m/CO-E32m Instruction Manual
Date: 2023/7/24 rev 0.4
PDF (1,321 KB)
-
CO series USB Driver
Date: 2023-08-23 rev1.7.5
ZIP (6,617 KB)
In this website, we provide only the latest version of information including instruction manuals as of our products. Therefore, the newest versions of manuals on the website might be not same as the ones of products you purchased in the past.