Why does the buzzer sound and the RUN indicator turn OFF on Omron NT21?
If the buzzer sounds and the RUN indicator is OFF on your Omron Touch terminals, it could be due to malfunction from external noise. Another possibility is that the PT has developed trouble, in this case, contact your nearest OMRON representative.
Why is nothing displayed on the Omron NT21 Touch terminals screen?
If nothing is displayed on the screen of your Omron Touch terminals, it could be due to the screen No. 0 has been read at the host side, so change the screen number. Alternatively, the system startup waiting time may not have elapsed yet; the display will appear after the waiting time has elapsed.
How to troubleshoot communication issues with the Support Tool on Omron NT21?
If you're experiencing communication issues with the Support Tool on your Omron Touch terminals, there are a few potential causes. First, the Transmit mode may not have been established; display the System Menu and select the Transmit mode. Second, you may not be properly connected to the Support Tool; check the installation of the connector cable. Finally, the PT model setting and direct connection setting at the Support Tool might not match the NT21, NT31/NT31C, or NT631/NT631C; use the PT Configuration settings of the Support Tool to set the PT model and direct connection settings that match your device.
What to do if the Omron Touch terminals touch panel does not respond?
If the touch panel on your Omron Touch terminals is unresponsive, it could be due to malfunction from external noise. Another possibility is that the touch panel is broken. To check this, test the touch panel with I/O Check in the MAINTENANCE MODE menu. If there is an error, contact your nearest OMRON representative.
How to brighten the display on Omron NT21?
If the display on your Omron Touch terminals appears dim, it could be due to insufficient contrast or brightness. For the NT31/NT31C or NT631/NT631C models, you can use the system menu to increase the contrast and/or brightness. For the NT21 model, use the switches on the back of the PT to increase the contrast. (Note that the brightness cannot be adjusted on the NT21.) Another potential cause is a defective or expired backlight. For the NT31/NT31C or NT631C models, replace the backlight. For the NT21, contact your nearest OMRON representative.
Why is updating of numeric values and text delayed on Omron Touch terminals?
Several factors can cause delays in updating numeric values and text on Omron Touch terminals. The issue could be due to malfunction from external noise. Another possible cause is having too many numeral/text displays on the displayed screen; try reducing the number of these displays on the screen experiencing delays. Additionally, the host cycle time might be extended due to heavy processing at the host; attempt to shorten the host cycle time. Finally, in an RS-422A/485 connection, incorrect wiring or an erroneous terminator setting can lead to delays; ensure the wiring is correct.
How to fix Omron NT21 Touch terminals when the power indicator fails to come ON?
If the power indicator on your Omron Touch terminals fails to illuminate, the issue may stem from two potential causes. First, there might be a problem with the power supply. Check the connections to ensure that power is being supplied correctly. Second, the power supply fuse may have blown. In this case, you should contact your nearest OMRON representative.
General| Display Type | STN monochrome LCD |
|---|---|
| Display Size | 5.7 inches |
| Resolution | 320 x 240 pixels |
| Touch Panel | Analog resistive |
| Communication Ports | RS-232C, RS-422/485 |
| Power Supply | 24 VDC |
| Operating Temperature | 0 to 50°C |
| Storage Temperature | -20 to 60°C |
| Weight | 0.8 kg |
| Memory | 512 KB |
Introduces the fundamental role and operation of Programmable Terminals (PTs).
Details the features, comparisons, and principal functions of the NT series terminals.
Explains the system configuration and peripheral devices connectable to the PTs.
Covers various communication methods for connecting the PT to a host system.
Describes communication using memory links, a method other than direct connection.
Provides essential steps and considerations before operating the PT.
Describes the PT screens which form the basis of PT functions.
Explains the areas provided for PT control and status notification between PT and host.
Details input from the touch panel, allowing screen switching and bit information transmission.
Explains monitoring host bits and displaying messages or image/library data when a bit changes to ON.
Details the procedure for inputting numeric values using numeral input fields or thumbwheel switches.
Explains inputting character strings using touch switches or a bar code reader.
Describes writing and reading data in table format to/from the host, allowing multiple settings to be managed.
Covers display history, alarm history, resume, screen saver, buzzer, clock, print, contrast/brightness, programming console, and device monitor.
Details the Device Monitor function for reading/changing PC data and displaying PC error logs.
Guides on actions to take when PT errors occur, by matching symptoms to remedies.
Details how to respond to various error messages displayed on the PT.
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