OMRON NS Series PT Remote Access

Right click on the file to bring up the browser menu, select "Save Target As" and download it locally.

Click on the directory name to enter the subdirectories, and click on "(up level)" to return to the previous level.

This function is extremely useful for remotely obtaining alarm records and production data reports, without the need to send personnel to the site to remove cards and copy them.

5.5 Configuration Screen

The configuration screen is used to adjust various behavioral parameters of the web interface and is the core of performance optimization. The interface contains multiple settings areas, and after modification, you need to click the "apply" (temporarily effective, lost after PT restart) or "save" (permanently saved to PT) button.

Monitor Setting

Parameter Description Default Values

Reload Interval: Automatic refresh interval for monitoring screen (seconds) 15

Number of Color Image Color Depth: 32768/256/16 Grayscale 256

Display Date and Time: Check if the timestamp is displayed at the bottom of the monitoring screen

Do I need to log in and authenticate when using Authentication to access the monitoring screen? Not checked

Do you use JavaScript to implement automatic refresh? Check the box

Use PNG format instead of BMP. If PNG is selected, the color is fixed at 32768, and the Number of Color setting is not checked (BMP)

Compression Level PNG compression ratio (0~9, 0 is the fastest without compression, 9 is the highest compression but time-consuming) 3

Balancing color and performance: The 32768 color display effect is completely consistent with the PT body, but each image file is large (BMP about 1.5MB) and the transmission is slow; A 16 level grayscale file is approximately 150KB, suitable for low bandwidth or operation scenarios that require fast response. It is recommended to set the operation screen to 16 levels of grayscale to reduce click latency.

Operation Setting

Parameter Description Default Values

Reload Interval Operation Screen Automatic Refresh Interval (seconds) 3

Delay After Click: The time (in seconds) to wait for a new screen to be read after clicking the mouse

Disable Touch Panel: When the operation screen is active, PT local touch input is not checked

Server Setting

Parameter Description Default Values

Page Title Browser tab title (up to 64 characters) NS Web Interface+version number

Initial Page when accessing the root URL（ http://IP/ ）The page displayed at that time. Optional Menu/Monitor/Operation/Files in Memory Card/Configuration Menu

The TCP port number on which the TCP Port web server is listening. Allowable values: 80, 8080, 49152~65535 80

Attention to modifying port number: If changed to 8080, the access URL needs to be changed to http://192.168.0.1:8080/ After changing the port, the current connection will be disconnected and a new port needs to be reconnected.

Troubleshooting and common error messages

In actual deployment, engineers often encounter connection failures or display exceptions. The following table summarizes typical errors and their solutions.

Possible causes and solutions for error messages/phenomena

401 Authorization Required: An incorrect username or password was entered and confirmed as default/default. If it has been modified, new credentials will be used. You can re upload the authentication file through FTP to restore the factory.

403 Forbidden: Unable to access the storage card to check if the PT has inserted a storage card and if the card is damaged or unformatted.

404 Not Found URL path error. Please use the correct path such as/monitor. html and pay attention to capitalization.

NS Image cannot transmit normally due to excessive network load or browser compatibility issues. Click the browser 'refresh' button to retry. Can reduce color depth (switch to 16 grayscale) or use PNG format instead.

Cannot find server or DNS error. Multiple network or configuration issues can be investigated by the following sub items:

Reason 1: PT model that does not support web interface was connected. Refer to section 2.1 to confirm that the model is V2 version.

Sub reason 2: PT system version is lower than 8.0. Check the system version and upgrade if it is insufficient.

↳ Sub reason 3: Set "FTP/Web" in the PT system menu to Disable, refer to section 3.2 and set it to Enable.

Reason 4: Change the PT system language from Japanese to non Japanese (such as English).

Reason 5: The IP address in the URL is incorrect. Ping test confirms the IP address of PT and corrects the address.

Other connections timeout, network or PT overload, wait for the network to idle and retry, or reduce the number of clients accessing simultaneously.

In addition, if the TCP port cannot be connected after modification, please confirm that the URL contains the port number and that the firewall allows inbound connections to that port.

Best Practices for Performance Optimization

Using low color depth during remote operation: Setting the color of the operation screen to 16 levels of grayscale can reduce the amount of data transmitted in a single image to 1/10, and the click response feeling is significantly improved.