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FAQ
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Q.
How to View the Communication Manual
Product
A.
On page 2 of the communication manual, you will find a table listing the [PLC Series/CPU Name/Communication Card Name/Communication Method].
 
Find the row that matches the [PLC Series/CPU/Communication Card/Communication Method] connected to your TOP device.
 
The pages explaining the system settings (how to configure communication) and cable wiring diagrams for your selection are highlighted in blue.
You can click on the highlighted page number to jump directly to that section.
 
Steps:
First, refer to the [Cable Table] section to check the wiring diagram and connect the cables accordingly.
Next, follow the instructions in the [Communication Settings] section to configure the communication settings.
 
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Q.
[R Product] Where Can I Find the Communication Manual?
Product
A.

1. You can download it from the official website.
Go to [Service] - [Download] - [Manual/Design] - [Communication Data] and download the manual for each PLC model.
 
2. In the software, go to the [Project] - [Properties] menu.
Select the PLC name on the left, and the [Communication Manual] button will appear on the right.
Click this button to view the relevant communication manual.
 
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Q.
[R Product] How to Check if Communication Between TOP and PLC is Normal
Product
A.
You can verify whether communication between the TOP main unit and the PLC is functioning properly by using the [Communication Diagnosis] button on the TOP device.

Navigate to the menu screen on the R product.

Go to the [Control Panel] - [PLC] menu, where you will find the [Communication Diagnosis] button at the bottom.

If a [Communication Success] message pops up, it means the cable and communication settings are correct, and communication is functioning normally.
If an [Error] message appears, communication is not working properly. In this case, please check the cable and communication settings again.
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Q.
[XTOP] Message: The Connected Device is Using an Older OS Version During Upload
Product
A.
You are currently using XDesignerPlus V4.
It appears that the OS version of your XTOP device is either V2.4 or V3.1.
Upgrading the OS means updating the device from OS V2.4 or V3.1 to V4.8.
XDesignerPlus V4 is only compatible with XTOP devices running OS version V4.8.
 
#Caution#
If you upgrade the OS, all project files (designs) on the XTOP device will be initialized (deleted).
Therefore, do NOT upgrade the OS if you need to upload project files.
 
Please follow these steps:
1. First, check the OS version of your XTOP device.
You can check the OS version in the [Information] menu on the device.
 
2. If the OS version is V2.4:
Use the XTOP-Designer V2.4 software (see post #3 on the software board).
Go to [Transfer - Ethernet/USB/Serial OS/Font Transfer], select [Design] on the [UP] page, and use the [Save As] button to specify the save path and file name.
 
3. If the OS version is V3.1:
Use the XDesignerPlus V2.6.58 software (see post #4 on the software board).
Go to [Transfer - Run Transfer Tool], select [Design] on the [UP] page, and use the [Save As] button to specify the save path and file name.
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Q.
USB Connection Troubleshooting Steps
Product
A.
USB Connection Troubleshooting Steps
 
1. Reconnect both ends of the USB cable.
 
2. Try connecting the PC’s USB cable to a different port.
 
3.Replace the USB cable with another one.
 
4. USB versions 3.0 and above are not supported, so connect to a USB 2.0 port.
If there is no USB 2.0 port, use a USB hub.
 
5. Reinstall the USB driver.
The USB driver is automatically installed when you install the XDesignerPlus or TOP Design Studio software. However, if it is not installed properly, reinstall it as follows:
Reinstall the USB Driver Setup.exe file located in the software installation directory.
[C:Program Files(x86)M2I CorpXDesignerPlus4usb_driver]
[C:Program Files(x86)M2I CorpTOP Design Studiousb_driver]
 
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Q.
[R Series] Push Button with Different Lamp Address and Momentary Action Address
Function/Development
A.
To configure a push button with separate addresses for the Lamp and the Momentary operation in TOP Design Studio, follow these steps:
 
1. Add the [Bit Lamp] Object
In TOP Design Studio, go to [Object] - [Bit Lamp] to insert the object.
- On the [Basic] tab, enter the lamp address.
- On the [Lamp] tab, configure the lamp appearance for the ON and OFF states.
 
2. Configure Momentary Operation
Momentary functionality is set in the [Effect & Action] tab.
- Under [Condition] tab, choose [Event] and select [Touch] & [Momentary] as the Event type.
- Under [Action] tab, select [Bit], then set it to [ON Continue].
- Set [Max Execute Count] to 0 (infinite), which allows the system to continuously write ON to the target address (e.g., Y001) while the button is being pressed.
- Click [Add] to register the action.
 
3. Behavior Summary
- With the above settings, the system continuously writes ON to the address while the button is being pressed, and writes OFF once when the button is released.
 
* If [Max Execute Count] is set to 1, the system will write ON once when the button is pressed, and write OFF once when it is released.
 
* Note: If you use the [Lamp] - [Momentary] object instead, it provides an easier way to implement a momentary (push) button. 
However, in that case, the lamp address cannot be set separately from the switch (action) address.
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Q.
[TOPRE0700 Product] Alarm Block Read Error / Log Group Read Error
Product
A.
Unlike previous models, the TOPRE0700WD and TOPRE0700WD NE models are equipped with SRAM memory and a built-in rechargeable battery.
 
SRAM memory is used to store Log, Alarm, and Recipe data. It functions properly while the device is powered on, or when the battery supplies power while the device is off.
However, if both the main power and the internal battery are discharged, the memory may fail to operate correctly.
 
As a result, "Alarm Block Read Error" or "Log Group Read Error" may occur when the device is powered on after the battery has fully discharged.
 
Recommended Action:
To resolve this issue, follow the steps below from the Main Menu:
 
Go to [Control Panel] - [Initialization] menu.
- Select [Start] for "2. Clear Log Data"
- Select [Start] for "3. Clear Alarm Data"
- Select [Start] for "4. Clear Recipe Data"
- Select [Start] for "5. Clear Internal Memory"
 
# Caution # Do not initialize any other menu options aside from the 4 options listed above.
 
After completing the steps, return to the operation screen. The device should now function normally.
 
Battery Usage Note:
To ensure stable operation, it is strongly recommended to fully charge the device.
After approximately 72 hours of charging, the device can be operated without power for about 2 weeks before the battery discharges. 
We strongly recommend fully charging the device before use.
 
* The TOPRE0700WD and TOPRE0700WD NE models were designed to offer a cost-effective solution. 
  We are currently working on enhancing the SRAM memory to improve convenience and reliability. 
  We appreciate your understanding and will continue to improve product quality.
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Q.
[XTOP] "Boot Mode" Displayed on Screen
Product
A.

If your XTOP device shows "Boot Mode", it means the OS has been erased.
To recover the device, you need to re-install the V4.8 OS.
 
Why This Happens:
The most common cause is an interrupted OS upgrade.
If the XTOP device is running OS version V2.4 or V3.1, attempting to transfer a project using XDesignerPlus V4.8 will prompt a message: [Would you like to start the OS upgrade program?].
Clicking [OK] will begin the upgrade process.

The OS upgrade process includes transferring the following files in order:
1. Boot File
2. Font File
3. OS File
 
After the Boot File is sent, the XTOP automatically reboots.
At this point, some users mistakenly think the upgrade is complete.
However, if only the Boot File is transferred, the device screen remains in Boot Mode.
 
How to Fix It:
1. Open XDesignerPlus V4.8
2. Go to [Transfer] - [OS Upgrade] menu
3. Continue the upgrade by sending the [Font File] to the [OS File]
 
Once the upgrade is successfully completed:
- The touch calibration screen will appear.
- After calibration, the main menu screen will be displayed.
 
You can then proceed to transfer your project file to the device.
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Q.
Can I Purchase an AC Power Model?
Product
A.
Yes, AC-powered models are available for purchase.
 
TOPR series supports both DC and AC versions.
Please note that AC models are made to order and typically require 2 to 3 months for delivery.
Additionally, AC models are priced higher than DC models.
 
TOPRX, TOPRW, and TOPRE series are available in DC only.
 
For more details, please contact us at +82-31-465-3366 (ext. 0202).
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Q.
[XTOP] Project File Transfer Issue
File transfer
A.
If you're unable to transfer project files to the XTOP device, there are two main possible causes:
 
1. Software Version Mismatch with the Device OS
If the software version does not match the OS version of the XTOP device, the transfer may fail.
You can check the OS version on the device under the Information menu.
 
Please use the appropriate software based on the OS version as follows:
- XTOP OS 2.4 --> XTOP-Designer (required)
- XTOP OS 3.1 --> XDesignerPlus V2 (required)
- XTOP OS 4.X --> XDesignerPlus V4 (required)

2. Connection Issue – “No Response” Error Message
If the software version is correct but a "No response" error appears, this indicates a connection failure between the PC and the XTOP device.
 
XTOP can connect to the PC via Serial, USB, or Ethernet:
- Serial: Connect to the XTOP's COM1 port.
- USB: Use the front USB mini port.
- Ethernet: Use the rear Ethernet port.
 
Troubleshooting by connection type:
- Serial (with [USB TO Serial Converter]): Make sure the correct COM port and communication settings are selected in the transfer tool.
- USB: Verify that the USB driver is properly installed. If not, reinstall the driver from the installation directory.
- Ethernet: Check both the PC and TOP Ethernet settings. Try running a ping test to the TOP's IP address from your PC to ensure network communication is working properly.
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