<![CDATA[Ewon Technical Forum

<![CDATA[Ewon Technical Forum - All Forums]]> https://techforum.ewon.biz/ Mon, 13 Apr 2026 10:50:21 +0000 MyBB <![CDATA[Flexy Device Manager Access]]> https://techforum.ewon.biz/thread-2859.html Thu, 02 Apr 2026 12:52:07 +0000 abrannon]]> https://techforum.ewon.biz/thread-2859.html

https://tools.ewonsupport.biz/flexy-devi...r/list.php]]>

https://tools.ewonsupport.biz/flexy-devi...r/list.php]]> <![CDATA[Download a file from /usr directory using only BASIC]]> https://techforum.ewon.biz/thread-2858.html Thu, 26 Mar 2026 20:46:21 +0000 LuisEnrique]]> https://techforum.ewon.biz/thread-2858.html Hi to everybody!

I 'd like to download a file from /usr directory using only BASIC Script: I know I can do it in ViewON using a button opening url "/usr/my_file.txt" but I need to execute some code before opening the file; is it possible?

Thk.

Luis]]> Hi to everybody!

I 'd like to download a file from /usr directory using only BASIC Script: I know I can do it in ViewON using a button opening url "/usr/my_file.txt" but I need to execute some code before opening the file; is it possible?

Thk.

Luis]]> <![CDATA[Block FileZilla to WRITE (Only) to Flexy]]> https://techforum.ewon.biz/thread-2857.html Thu, 26 Mar 2026 18:25:35 +0000 LuisEnrique]]> https://techforum.ewon.biz/thread-2857.html
I'm currently using FileZilla to extract (read) information from the Flexy's external SD card, but my client wants me to block FileZilla from writing to that card. I'd like to know how to do this.

Thanks in advance.

Luis]]>
I'm currently using FileZilla to extract (read) information from the Flexy's external SD card, but my client wants me to block FileZilla from writing to that card. I'd like to know how to do this.

Thanks in advance.

Luis]]> <![CDATA[2x Flexy - direct connection]]> https://techforum.ewon.biz/thread-2856.html Thu, 05 Mar 2026 16:48:19 +0000 mnieuzyla]]> https://techforum.ewon.biz/thread-2856.html
I'm testing the option for direct connectivity between two sites using two Flexy routers.
I have the static WAN address mapped to external, static IP, I'd like to use it for the server. However, when I try to configure the server side(using AUG015, Linking 2 Sites Together Using VPN) I noticed weird behaviour.
WAN connection is configured successfully, but when I go to the VPN config, I'm setting the parameters:
Listen for incoming VPN from client
VPN Incoming, set passphrase, VPN IP automatic
I hit the Update, and it looks that all is set. However, after a short while it looks like it goes back to the outgoing connection mode - even in comcfg file VPNCnxType changes from 1 (incoming connection) to 2 (outgoing connection).
What could be wrong? Flexy is recently updated to v15.0s2.]]>
I'm testing the option for direct connectivity between two sites using two Flexy routers.
I have the static WAN address mapped to external, static IP, I'd like to use it for the server. However, when I try to configure the server side(using AUG015, Linking 2 Sites Together Using VPN) I noticed weird behaviour.
WAN connection is configured successfully, but when I go to the VPN config, I'm setting the parameters:
Listen for incoming VPN from client
VPN Incoming, set passphrase, VPN IP automatic
I hit the Update, and it looks that all is set. However, after a short while it looks like it goes back to the outgoing connection mode - even in comcfg file VPNCnxType changes from 1 (incoming connection) to 2 (outgoing connection).
What could be wrong? Flexy is recently updated to v15.0s2.]]> <![CDATA[SYS or COM parameters for activate SD CARD]]> https://techforum.ewon.biz/thread-2853.html Thu, 12 Feb 2026 16:32:08 +0000 mickaa]]> https://techforum.ewon.biz/thread-2853.html
- I had an SD card that worked on an Ewon in user expansion mode before I performed a type 2 reset on the Ewon. I can't get the SD card working again (EaseUS + ext3 + clusters = 4kb).

- I disconnect the power before removing/inserting the SD card.
- I tested with two other new SD cards... No luck.
- I have no information in my event log.

- Are there any SYS or COM parameters I should check that could be blocking the SD card from working?]]>
- I had an SD card that worked on an Ewon in user expansion mode before I performed a type 2 reset on the Ewon. I can't get the SD card working again (EaseUS + ext3 + clusters = 4kb).

- I disconnect the power before removing/inserting the SD card.
- I tested with two other new SD cards... No luck.
- I have no information in my event log.

- Are there any SYS or COM parameters I should check that could be blocking the SD card from working?]]> <![CDATA[Using a user's saved password without writing it in plain text into the program?]]> https://techforum.ewon.biz/thread-2852.html Thu, 12 Feb 2026 12:58:55 +0000 mickaa]]> https://techforum.ewon.biz/thread-2852.html Is there a way to use a saved user's password without writing it in plain text in the program?

In this code, I would like to hide, for example, "AuthPwdA:adm"

Code:
IF $ServName$="OPCUA" THEN 

  IF $Topic$="A" THEN 

    $RetLine$="EnabledA:1"+EoL$+"EndpointUrlA:opc.tcp://"+EWON_GENERATOR_IP$+":4840"+EoL$+"UserTokenTypeA:1"+EoL$+"AuthUserA:adm"+EoL$+"AuthPwdA:adm"+EoL$+"MessageSecurityModeA:1"+EoL$+"SecurityPolicyUriA:0"+EoL$

    $RetLine$=$RetLine$+"EnabledB:0"+EoL$+"UserTokenTypeB:0"+EoL$+"MessageSecurityModeB:1"+EoL$+"SecurityPolicyUriB:0"+EoL$

    $RetLine$=$RetLine$+"EnabledC:0"+EoL$+"UserTokenTypeC:0"+EoL$+"MessageSecurityModeC:1"+EoL$+"SecurityPolicyUriC:0"+EoL$

    $RetLine$=$RetLine$+'NamespaceArrayA:["http://opcfoundation.org/UA/", "urn:ewon-2230-1105-24:ewon:ewontags", "http://opcfoundation.org/UA/DI/", "http://PLCopen.org/OpcUa/IEC61131-3/", "http://ewon.biz/Ewontags/"]'

  ENDIF

ENDIF

]]> Is there a way to use a saved user's password without writing it in plain text in the program?

In this code, I would like to hide, for example, "AuthPwdA:adm"

Code:
IF $ServName$="OPCUA" THEN 

  IF $Topic$="A" THEN 

    $RetLine$="EnabledA:1"+EoL$+"EndpointUrlA:opc.tcp://"+EWON_GENERATOR_IP$+":4840"+EoL$+"UserTokenTypeA:1"+EoL$+"AuthUserA:adm"+EoL$+"AuthPwdA:adm"+EoL$+"MessageSecurityModeA:1"+EoL$+"SecurityPolicyUriA:0"+EoL$

    $RetLine$=$RetLine$+"EnabledB:0"+EoL$+"UserTokenTypeB:0"+EoL$+"MessageSecurityModeB:1"+EoL$+"SecurityPolicyUriB:0"+EoL$

    $RetLine$=$RetLine$+"EnabledC:0"+EoL$+"UserTokenTypeC:0"+EoL$+"MessageSecurityModeC:1"+EoL$+"SecurityPolicyUriC:0"+EoL$

    $RetLine$=$RetLine$+'NamespaceArrayA:["http://opcfoundation.org/UA/", "urn:ewon-2230-1105-24:ewon:ewontags", "http://opcfoundation.org/UA/DI/", "http://PLCopen.org/OpcUa/IEC61131-3/", "http://ewon.biz/Ewontags/"]'

  ENDIF

ENDIF

]]> <![CDATA[Every Java program ends in "ZipException: bad header in central file directory"]]> https://techforum.ewon.biz/thread-2851.html Fri, 06 Feb 2026 17:20:37 +0000 cracksalad]]> https://techforum.ewon.biz/thread-2851.html
I just started tinkering around with the Flexy 205 and want to write a Java program for MQTT as at least half of you guys seem to do. Sadly, I always run into

Code:
java.util.zip.ZipException: bad header in central file directory

    at java.lang.Throwable.(Unknown Source)

    at java.lang.Throwable.(Unknown Source)

    at java.lang.Exception.(Unknown Source)

    at java.io.IOException.(Unknown Source)

    at java.util.zip.ZipException.(Unknown Source)

    at java.util.zip.ZipFile.readEntries(Unknown Source)

    at java.util.zip.ZipFile.locateEndCD(Unknown Source)

    at java.util.zip.ZipFile.getEntries(Unknown Source)

    at java.util.zip.ZipFile.(Unknown Source)

    at java.util.jar.JarFile.(Unknown Source)

    at java.util.jar.JarFile.(Unknown Source)

    at wonka.vm.ClassLoaderURLHandler.createClassLoaderURLHandler(Unknown Source)

    at wonka.vm.ClassLoaderURLHandler.createClassLoaderURLHandlers(Unknown Source)

    at java.net.URLClassLoader.(Unknown Source)

    at wonka.vm.ApplicationClassLoader.(Unknown Source)

    at wonka.vm.ApplicationClassLoader.getInstance(Unknown Source)

    at java.lang.ClassLoader.createApplicationClassLoader(Unknown Source)

    at java.lang.System.(Unknown Source)

    at java.lang.System.(Unknown Source)

    at wonka.vm.Init.main(Unknown Source)

Init: no such class as MainClass in class path!

Init: no start class found.  Game over.

I assume, that the last two lines are a consequence of the exception.

I tried different JARs, a self made one as well as a MQTT_EWONSUPPORT.jar, which I found here in the forum.
I execute the JVM/JAR by entering this URL in my browser:

Code:
http://192.168.1.250/rcgi.bin/jvmCmd?cmd=start&runCmd=%20-heapsize%205M%20-classpath%20/usr/MQTT_EWONSUPPORT.jar%20-emain%20MainClass

Code:
java.util.zip.ZipException: bad header in central file directory

    at java.lang.Throwable.(Unknown Source)

    at java.lang.Throwable.(Unknown Source)

    at java.lang.Exception.(Unknown Source)

    at java.io.IOException.(Unknown Source)

    at java.util.zip.ZipException.(Unknown Source)

    at java.util.zip.ZipFile.readEntries(Unknown Source)

    at java.util.zip.ZipFile.locateEndCD(Unknown Source)

    at java.util.zip.ZipFile.getEntries(Unknown Source)

    at java.util.zip.ZipFile.(Unknown Source)

    at java.util.jar.JarFile.(Unknown Source)

    at java.util.jar.JarFile.(Unknown Source)

    at wonka.vm.ClassLoaderURLHandler.createClassLoaderURLHandler(Unknown Source)

    at wonka.vm.ClassLoaderURLHandler.createClassLoaderURLHandlers(Unknown Source)

    at java.net.URLClassLoader.(Unknown Source)

    at wonka.vm.ApplicationClassLoader.(Unknown Source)

    at wonka.vm.ApplicationClassLoader.getInstance(Unknown Source)

    at java.lang.ClassLoader.createApplicationClassLoader(Unknown Source)

    at java.lang.System.(Unknown Source)

    at java.lang.System.(Unknown Source)

    at wonka.vm.Init.main(Unknown Source)

Init: no such class as MainClass in class path!

Init: no start class found.  Game over.

Code:
http://192.168.1.250/rcgi.bin/jvmCmd?cmd=start&runCmd=%20-heapsize%205M%20-classpath%20/usr/MQTT_EWONSUPPORT.jar%20-emain%20MainClass

Of course, I double checked the JAR name/path and the main class name. Is it possible, that e.g. a compression algorithm used by the JAR is not supported by the Ewon? Has anybody seen the same issue before? Do I have to enable somethingas one has to enable the FTP server since I think firmware 15?

Firmware is 15.0s2]]> <![CDATA[What is the point of defining pivots on the different different Ewon firmware version]]> https://techforum.ewon.biz/thread-2850.html Tue, 27 Jan 2026 15:43:32 +0000 mickaa]]> https://techforum.ewon.biz/thread-2850.html
What is the point of defining pivots on the different Ewon firmware versions?
Does it allow us to avoid low-level formatting and therefore not have to completely reinstall the system?

https://techforum.ewon.biz/thread-1227.h...24%3DGET+1]]>
What is the point of defining pivots on the different Ewon firmware versions?
Does it allow us to avoid low-level formatting and therefore not have to completely reinstall the system?

https://techforum.ewon.biz/thread-1227.h...24%3DGET+1]]> <![CDATA[Ewon Cosy port forward for SQL Server]]> https://techforum.ewon.biz/thread-2849.html Tue, 27 Jan 2026 10:30:48 +0000 FimoHub]]> https://techforum.ewon.biz/thread-2849.html
I have to reach it through the WAN port of the Ewon (Customer network 172.17.x.x) so I'm trying to configure some Port Forwarding rules following your FAQs/guides.
The connection works correctly if I connect from my PC using eCatcher and SQL Management Studio pointing te DB Server "192.168.X.X\SQLEXPRESS", so it seems that SQL is well configured for network access (Network protocols and so on...).

I'm still not able to reach the SQL Server instance from the WAN port using "172.17.x.x\SQLEXPRESS" address, but it seems that the returned SQL Connection Error change a little depending on the configured rule on the Ewon.
Basically the error says always that is not possible to reach the SQLServer Instance on the network.

Has anyone been able to connect succesfully to SQL Server by using port forwarding?

Here under the current rules/parameters saved inside the Ewon:

ProxyEnabled = 1 to enable proxy rules

ProxyExtItf = 0 (WAN)

ProxyProto1 = 2 (TCP)
ProxySide1 = 1
ProxyPort1 = 1433
ProxySvrPort1 = 1433
ProxySvrIpAddr1 = 192.168.0.100

ProxyProto2 = 1 (UDP)
ProxySide2 = 1
ProxyPort2 = 1434
ProxySvrPort2 = 1434
ProxySvrIpAddr2 = 192.168.0.100

ProxyProto3 = 2 (TCP)
ProxySide3 = 1
ProxyPort3 = 135
ProxySvrPort3 = 135
ProxySvrIpAddr3 = 192.168.0.100

ProxyProto4 = 2 (TCP)
ProxySide4 = 1
ProxyPort4 = 1434
ProxySvrPort4 = 1434
ProxySvrIpAddr4 = 192.168.0.100

WANItfProt = 2

Basically I have configured the most common ports of SQL Server service for network connection: should I add also the same rules for the opposite side (LAN to EXT) or does the ewon automatically manage the port forward in both sides?

Am I missing something (other parameter/rule)?

Thanks in advance for any help or suggestion and have a nice day!]]>
I have to reach it through the WAN port of the Ewon (Customer network 172.17.x.x) so I'm trying to configure some Port Forwarding rules following your FAQs/guides.
The connection works correctly if I connect from my PC using eCatcher and SQL Management Studio pointing te DB Server "192.168.X.X\SQLEXPRESS", so it seems that SQL is well configured for network access (Network protocols and so on...).

I'm still not able to reach the SQL Server instance from the WAN port using "172.17.x.x\SQLEXPRESS" address, but it seems that the returned SQL Connection Error change a little depending on the configured rule on the Ewon.
Basically the error says always that is not possible to reach the SQLServer Instance on the network.

Has anyone been able to connect succesfully to SQL Server by using port forwarding?

Here under the current rules/parameters saved inside the Ewon:

ProxyEnabled = 1 to enable proxy rules

ProxyExtItf = 0 (WAN)

ProxyProto1 = 2 (TCP)
ProxySide1 = 1
ProxyPort1 = 1433
ProxySvrPort1 = 1433
ProxySvrIpAddr1 = 192.168.0.100

ProxyProto2 = 1 (UDP)
ProxySide2 = 1
ProxyPort2 = 1434
ProxySvrPort2 = 1434
ProxySvrIpAddr2 = 192.168.0.100

ProxyProto3 = 2 (TCP)
ProxySide3 = 1
ProxyPort3 = 135
ProxySvrPort3 = 135
ProxySvrIpAddr3 = 192.168.0.100

ProxyProto4 = 2 (TCP)
ProxySide4 = 1
ProxyPort4 = 1434
ProxySvrPort4 = 1434
ProxySvrIpAddr4 = 192.168.0.100

WANItfProt = 2

Basically I have configured the most common ports of SQL Server service for network connection: should I add also the same rules for the opposite side (LAN to EXT) or does the ewon automatically manage the port forward in both sides?

Am I missing something (other parameter/rule)?

Thanks in advance for any help or suggestion and have a nice day!]]> <![CDATA[Return a value of variable name, read in file]]> https://techforum.ewon.biz/thread-2848.html Mon, 26 Jan 2026 08:37:14 +0000 mickaa]]> https://techforum.ewon.biz/thread-2848.html
I would like to return the value of a variable name read from a file. Any solutions?

Code:
SYS_INFORMATION$="TestOk"

Print @ReadInFile$("/usr/MyFile.txt"): REM This function returns "SYS_INFORMATION$"

How can I make this function return the value of this variable name: "TestOK"?

I know it's possible to do:

Code:
IF @ReadInFile$("/usr/MyFile.txt") = "SYS_INFORMATION$" THEN Result$=SYS_INFORMATION$ ENDIF 

PRINT Result$ : REM Return "TestOk"

But I'm looking for a solution that would allow me to return the value directly.

I tried:

Code:
@ReplaceVarNameByValue$(PRINT $ParamVar$)

but it doesn't work...]]>
I would like to return the value of a variable name read from a file. Any solutions?

Code:
SYS_INFORMATION$="TestOk"

Print @ReadInFile$("/usr/MyFile.txt"): REM This function returns "SYS_INFORMATION$"

How can I make this function return the value of this variable name: "TestOK"?

I know it's possible to do:

Code:
IF @ReadInFile$("/usr/MyFile.txt") = "SYS_INFORMATION$" THEN Result$=SYS_INFORMATION$ ENDIF 

PRINT Result$ : REM Return "TestOk"

But I'm looking for a solution that would allow me to return the value directly.

I tried:

Code:
@ReplaceVarNameByValue$(PRINT $ParamVar$)

but it doesn't work...]]> <![CDATA[Can't send e-mails Flexy 202]]> https://techforum.ewon.biz/thread-2846.html Fri, 23 Jan 2026 16:18:19 +0000 jbarbosa.ds]]> https://techforum.ewon.biz/thread-2846.html
I'm having trouble sending emails through Flex 202. In Scheduled Actions first appears: "In Progress", and after that, the satus code "-536891016" "Queue Empty" and nothing is sent.

Can anyone help me?

FW: 15.0S2
SNMP: Configured
Internet Connection: Ok

Thank you.]]>
I'm having trouble sending emails through Flex 202. In Scheduled Actions first appears: "In Progress", and after that, the satus code "-536891016" "Queue Empty" and nothing is sent.

Can anyone help me?

FW: 15.0S2
SNMP: Configured
Internet Connection: Ok

Thank you.]]> <![CDATA[eWON status locked to 'online' in the Talk2M system]]> https://techforum.ewon.biz/thread-2845.html Tue, 20 Jan 2026 16:50:10 +0000 Anders]]> https://techforum.ewon.biz/thread-2845.html It was impossible to connect.
The eWON was disconnected physically without any change in the observed connection status.
Connection was tried from different locations.
eWON was reset locally without any remedy.

We made a duplicate with a new activation key. When this was inserted we could connect to the eWON, now with a new name.
The old has been 'Disabled' in eCatcher.

Anyone with the same issue that can explain?]]> It was impossible to connect.
The eWON was disconnected physically without any change in the observed connection status.
Connection was tried from different locations.
eWON was reset locally without any remedy.

We made a duplicate with a new activation key. When this was inserted we could connect to the eWON, now with a new name.
The old has been 'Disabled' in eCatcher.

Anyone with the same issue that can explain?]]> <![CDATA[Logic of the scheduled action operation]]> https://techforum.ewon.biz/thread-2820.html Fri, 16 Jan 2026 13:58:07 +0000 mickaa]]> https://techforum.ewon.biz/thread-2820.html
I don't understand the logic behind how the 20 scheduled actions work. (Firmware 14.9 flexy 201/205)

The first 18 statuses are "Success" and only the last 2 statuses are "Full Queue".

1:FTP Put Success
2:FTP Put Success
3:FTP Put Success
[The same status: Success]
17:FTP Put Success
18:FTP Put Success
19:FTP Put Queue Full
20:FTP Put Queue Full

I thought the first 19 statuses would have to be at "-1 In progress" to have a "Queue Full" on the last status.

Could you please explain how the 20 scheduled action table works?

.png

2026-01-16_14h44_31.png (Size: 34,89 KB / Downloads: 3) ]]>
I don't understand the logic behind how the 20 scheduled actions work. (Firmware 14.9 flexy 201/205)

The first 18 statuses are "Success" and only the last 2 statuses are "Full Queue".

1:FTP Put Success
2:FTP Put Success
3:FTP Put Success
[The same status: Success]
17:FTP Put Success
18:FTP Put Success
19:FTP Put Queue Full
20:FTP Put Queue Full

I thought the first 19 statuses would have to be at "-1 In progress" to have a "Queue Full" on the last status.

Could you please explain how the 20 scheduled action table works?

.png

2026-01-16_14h44_31.png (Size: 34,89 KB / Downloads: 3) ]]> <![CDATA[One Error in demo Ping]]> https://techforum.ewon.biz/thread-2819.html Wed, 14 Jan 2026 15:55:20 +0000 mickaa]]> https://techforum.ewon.biz/thread-2819.html A small oversight has crept into the code example:
https://developer.ewon.biz/content/open-tcp-udp-basic

Code:
OPEN "192.168.1.1:23" FOR BINARY OUTPUT AS 1

The good code are:

Code:
OPEN "tcp:192.168.1.1:23" FOR BINARY OUTPUT AS 1

//OPEN "udp:192.168.1.1:23" FOR BINARY OUTPUT AS 1

and this error:

Code:
REM: SEND DATA

REM: Close Socket

Code:
REM : SEND DATA

REM : Close Socket

]]> A small oversight has crept into the code example:
https://developer.ewon.biz/content/open-tcp-udp-basic

Code:
OPEN "192.168.1.1:23" FOR BINARY OUTPUT AS 1

The good code are:

Code:
OPEN "tcp:192.168.1.1:23" FOR BINARY OUTPUT AS 1

//OPEN "udp:192.168.1.1:23" FOR BINARY OUTPUT AS 1

and this error:

Code:
REM: SEND DATA

REM: Close Socket

Code:
REM : SEND DATA

REM : Close Socket

]]> <![CDATA[Change memory organization on flexy 201]]> https://techforum.ewon.biz/thread-2818.html Wed, 07 Jan 2026 20:36:04 +0000 vangorpia]]> https://techforum.ewon.biz/thread-2818.html How can I change the memory allocation on an existing project for a flexy 201?
When I change the memory configuration a complete format of the Ewon is done.
If you restore your project (with eBuddy) your memory setting is back to the original. (which in a way make sense).
So can I make a backup, then change the memory configuration with a complete format and reboot, after that update the "Memorg" parameter to the desired setting in the comcfg.txt file of the backup and then put the backup back?
Or is there a better way to do this?]]> How can I change the memory allocation on an existing project for a flexy 201?
When I change the memory configuration a complete format of the Ewon is done.
If you restore your project (with eBuddy) your memory setting is back to the original. (which in a way make sense).
So can I make a backup, then change the memory configuration with a complete format and reboot, after that update the "Memorg" parameter to the desired setting in the comcfg.txt file of the backup and then put the backup back?
Or is there a better way to do this?]]>