troubleshooting_faq
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troubleshooting_faq [2019/01/23 11:36] – [No access to WebHMI from browser] emozolyak | troubleshooting_faq [2022/08/17 15:14] (current) – emozolyak | ||
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- | ====== Troubleshooting | + | ====== Troubleshooting ====== |
===== The device does not turn on or resets ===== | ===== The device does not turn on or resets ===== | ||
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|Wrong IP-address of the WebHMI | Reset network setting | | |Wrong IP-address of the WebHMI | Reset network setting | | ||
| ::: | if there is VPN connection up on the WebHMI, you may use it to check network setting | | | ::: | if there is VPN connection up on the WebHMI, you may use it to check network setting | | ||
- | | ::: | if there were complicate network setting and you don't want - to do the network setting reset then: | | + | | ::: | if there were complicate network setting and you don't want to do the network setting reset then: | |
|:::|a) plug in Ethernet cable from PC ( with DHCP client setup) to LAN port of the WebHMI and check gateway assigned to the PC's interface | |:::|a) plug in Ethernet cable from PC ( with DHCP client setup) to LAN port of the WebHMI and check gateway assigned to the PC's interface | ||
|:::|b) Recall the subnet where WebHMI was used last time, assign this subnet IP address to PC network interface and use software IP-scanner to find it.| | |:::|b) Recall the subnet where WebHMI was used last time, assign this subnet IP address to PC network interface and use software IP-scanner to find it.| | ||
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|Lua has a limited accuracy for double type values to 54 bit. This can be noticable when processing very small or big numbers. Or storing certain decimal values which are " | |Lua has a limited accuracy for double type values to 54 bit. This can be noticable when processing very small or big numbers. Or storing certain decimal values which are " | ||
|:::| Put the math operation in the order they unlikely to cause overflow (e.g. first divide arguments and then multiply them)| | |:::| Put the math operation in the order they unlikely to cause overflow (e.g. first divide arguments and then multiply them)| | ||
- | |:::| for " | + | |:::| For " |
+ | |||
+ | ===== Running demo Virtual box image ===== | ||
+ | |||
+ | === No serial port available while editing connection properites === | ||
+ | |||
+ | ^ Possible cause ^ Solution ^ | ||
+ | |USB-serial converter is not connected / Wrong driver is used / Converter is not working | Check the converter is plugged and working in a host OS | | ||
+ | |COM port in the guest machine is mounted as a host COM port | There is a compatibility issue under Windows for attaching Windows Com ports into Linux guest OS. Try to mount Usb bus device, not a Com port. In some cases, Usb Com port works only if they are added into Usb filtered devices in virtual machine settings. See the {{ network: | ||
+ | |Usb filter is set for the serial port, it is available in the list of the available usb devices for mounting, but error message appears upon attempt to mount it| In Windows: Using regedit go to the following registry entry and delete the " | ||
+ | |||
+ | === Can't import virtual machine due to existing uuid === | ||
+ | |||
+ | If you have multiple webhmi images in Virtual box, you can encounter this error, becuase virtual image being added usually build based on previous one, so it may have the same uuid for itself or vdi files. For this, you can detect | ||
+ | which machine has colliding uuid with the VBoxManage command line tool and in the virtual storage manager in Virutal Box. | ||
+ | |||
+ | ===== Visualization issues ===== | ||
+ | |||
+ | ==== Dashboard editor ==== | ||
+ | === SVG image is not displayed during editing === | ||
+ | |||
+ | The SVG file should have " | ||
+ | |||
+ | {{ network: | ||
+ | |||
+ | Please reset the " | ||
+ | |||
+ | ==== Orphaned images ==== | ||
+ | === Image choosing popup in dashboard editor has orphaned images === | ||
+ | |||
+ | If you accidentally deleted some images or folders with images directly from SD card - pass the / | ||
+ | Feature available since version 4.1.3.7945 | ||
+ | |||
+ |
troubleshooting_faq.txt · Last modified: 2022/08/17 15:14 by emozolyak