Kepware

Hello, I would like to set up communication between two KEP Servers KEP Server to KEP Server.Currently, the other KEP Server is reading tags from our server,but we are unable to read their tags.Our current license status is as shown below.Do we need to purchase a separate OPC UA Client?If so, how much does it cost approximately?

I activated the license of KEPServerEX. However, this message appears each minute.How can I remove it? 

At the moment Kepserver is only able to publish it's data to a MQTT broker as a json string. Because og this I need an extra software tool to split tags into topics and republish them into a UNS.I need Kepserver to be able to publish each tag on a separate topic for example corresponding to the structure of the tag groups in Kep. Is thes a part of Kepware's reoadmap?  

Our Kepware servers are reading around 100,000 tags from DCS server and forwarding to PI servers. We created one channel connecting to DCS server, and the minimum tag scan rate is 5000ms. The problem is when I meet some problems and reboot Kepware server, the DCS server will slow down for about 10 minutes after the Kepware instance running. We have already deleted 20,000 unnecessary tags, now the number is around 80,000, the problem remains. We also enabled “Read form cache” when start up, but it did not help. Would you please give suggestions on below points: 1. How to proof that it is not hardware issue which caused this problem? What should I check on DCS server side when Kepware server rebooted? For example, CPU load, network load, hard drive load, etc. By the way, the spec of DCS server is i7+32GB RAM+1TB SSD. 2. Is it possible to solve this problem just by changing settings or optimizing tag list in Kepware? So that we have less job to do and less arguments with other teams.

Dear Kepware Team,@bdube@ptc.com I hope this message finds you well.As part of our ongoing efforts to align with upcoming EU cybersecurity regulations, I would like to inquire whether Kepware products—specifically KEPServerEX—are expected to be subject to the requirements of the Cyber Resilience Act (CRA).If so, could you kindly share:Whether Kepware is actively working towards CRA compliance?The anticipated timeline by which Kepware products will be CRA-compliant?Any documentation or roadmap that outlines your approach to meeting CRA obligations?Understanding your position on this matter will help us plan our integration and compliance strategy accordingly.Thank you in advance for your support. Best regards,Mani

I have no problem in reading Kepware simulator from address R0001 (which self incrementing) from node-red, but unable to write into address K0001 or S0001 in node-red. Any advice will be much appreciated ? The moment i started to write, the node-red exited!. ns=2;s=SimulatorChannel.SimulatorDevice.MyWriteTag

Hello. Im wanting to communicate with some ABB totalflow  computers through Factorytalk SE. Do I need just the ABB Totalflow driver or do I need the OPC connectivity suite as well.

I need to transfer a Kepware license (offline)...  1. I created the trasfer_request file on the 1st server... no issues2. I uploaded the transfer_request file to kepware portal... no issues3. I created the activation_request file in the 2nd server... no issues4. I uploaded the activation_request file to kepware portal and everything seems to be ok... I complete the form with the requested information... no issues5. however when trying to create the activation_response file, the file is not generated and google is only redirecting me to a page with the next title "Legal Policies, Agreements and Disclaimers" (see attached image)Please advise... I really need to get the activation_response file in order to activate the 2nd server.

We are working with PLC Siemens S7-1500 Firmware v4.0. OPC is able to establish connection but at some point it disconnects and gives following error: "Device is not responding. Connection closed by device". Slot and rack in configurtion is correct. PLC Siemens S7-1500 Firmware v4.0KEPServerEX version 6.18 Could you please suggest any solution?

Dear Team,We are setting up Kepware to connect to an OPC UA server (e.g., Prosys/800xA) and publish selected tags into an MQTT broker at the Edge (Mosquitto).I see that Kepware offers both the OPC Connectivity Suite and the IoT Gateway add-on. The product descriptions are a little confusing in terms of overlap, so I want to confirm:If my use case is strictly OPC UA → MQTT JSON payloads, is the OPC Connectivity Suite license sufficient?Do I still need the IoT Gateway license in addition to OPC Connectivity Suite for MQTT publishing?Is there any difference in MQTT support between these two (e.g., Sparkplug B, payload formatting)?Are there any tag limits for each of the two license suites ?For long-term production deployments, which is the recommended license bundle for OPC UA to MQTT?Thanks in advance for clarifying!

Using KEPServerEX 6.7; ModBus TCP/IP Ethernet driver try to connect to  Endress+Hauser promag 400 MB flowmeter.I have connection established with no errors to flow meter, but keep reading quality good from registers but zero values.For example the register 32909, ModBus Id, should be "10" and i am reading "0"I am suspicious of some Data access or Data Encoding parameter not well configured.  

I have KEPServerEX 6.17.269 installed. I ran Nessus Vulnerability scanner and it appeared that .NET 6.0 is installed on PC. I think that KEPServerEX uses .NET.The reccomended remediation is to install .NET version 8.0. I wanted to ask if KEPServerEX 6.17.269 is compatible with .NET version 8.0? Is there any page that I could see which versions of .NET is suported by which version of KepServerEx?

Hi, I have used Kepware with Siemens WinCC SCADA in the past to communicate with Rockwell Control Logix PLC's but did not create any static tags within Kepware.  I created a tag database within WinCC and the WinCC SCADA tag addresses contain the path to the OPC topic and the controller tag within the PLC.  I am now looking at an existing FTView SE application that is using Kepware to communicate with Mitsubishi PLC's but has created static tags within the Kepware configuration so the FTView application uses the Kepware static tags directly without having to create HMI tags in the FTView application.Are there any performance advantages by creating static tags in Kepware and using them directly within the FTView  application as opposed to creating the tags within the FTView system ?  How does the Kepware comms driver handle comms in these two situation ?  

Has any one found a way to read active tool number using Fanuc Focas driver on Doosan CNC?

Hello,  I have exactly the same issue as into this topic : Kepware Trust certificates - PTC Community Can you please tell me if somebody has some solution regarding this topic ? On my side, I put on the Kepware Certificate Store the certificate of Thingworx Server. Do i need to put also the Root and Intermediate from my company ?  Thank you  Guillaume  Thingworx version : 9.7Kepware version : 6.17

We have identified the FlexNet publisher installed automatically with the Kepware install as a cyber vulnerability and want to remove it. We have KEPServer EX6 v6.6.350.0 installed. It is using a lic file for licencing.Can the FNPLicencingService application in C:\Program Files (x86)\Common Files\Macrovision Shared\FlexNet Publisher be removed without impacting the running of the KepWare application?

it's a warning in the log of Kepware ,It says "Write request timeout on device'FP_A_U4_Pester.Overwrapper' and 'FP_A_U4_Pester.Overwrapper Unable to write to address on device .Address ='PLC1:.fold_TuT_AlarmInterlock' I use OPC -DA protocol establish communication between Kepware and FP_A_U4_Pester.Overwrapper , and I use Advance tag to write a boolean to PLC ( "PLC1:FP_A_U4_Pester.Overwrapper.fold_TuT_AlarmInterlock") ,I check from the PLC of machine , it's successful sent the boolean from Kepware to PLC1:FP_A_U4_Pester.Overwrapper.fold_TuT_AlarmInterlock ,my question is why I have a warning message when Kepware have a successful sending ? if you want get any further information ,please contact me any time when you are free .thanks a lot.

Hello all,I am a new user working on a project for a customer. We are using KEPServerEX 6.17.240.0 on 2 redundant VMs to connect to several Siemens S7-400 and S7-1500 PLCs via Siemens TCP/IP and OPC UA protocol respectively. After Reinitializing, I get the following warnings for each OPC UA connections: Date Time Level Source Event05/09/2025 07:32:22 Warning OPC UA Client CHANNEL.DEVICE | The Publishing Interval for device has been set by the server. | New interval = 1000 (milliseconds), Requested interval = 500 (milliseconds). The publishing interval is set to 500ms for all devices on the KEPServer. I was shown by one of the PLC programmers that the PLC's intervals ("sampling" and "sending" intervals) are also 500ms. Most of the connected PLCs are programmed by different people so I find it unlikely that all of them set the interval to 1000 instead of 500, so I suspect the error on my side. However, I couldn't find anything that I could have missed. Does anyone have an

I have upgrated from Kepware 5.20.396.0 to Kepware 6.17.269.0.The project it is the same, it has channels in  OPC UA Client and 3 channels in  OPC DA Client.The 3 OPC DA channels communicate with the same OPC "Server Werum OCIF 1.5.0":- Channel 1 contains one device configured "Update Mode:Exception"- Channel 2 contains one device configured "Update Mode:Exception"- Channel 3 contains one device configured "Update Mode:Polling"In the old system Kepware 5 all worked smootly, in the new system with Kepware 6.17.269.0 the devices in "Update Mode:Exception" randomly have errors:- Read failed in opc client because half/all tags are in bad state- From Kepware logs "Reconnecting server on channel '...' due to GetStatus failure"- Write failed in opc client: from Kepware logs "Async Write 2.0 failed for '...'. Function error: 0x80010108 'The object invoked has disconnected from its clients.'"The device with "Update Mode:Polling" doesn't have problems.If I chan

We are using KepServerEX6 (6.6.350.0) communicating to Control Logix PLCs.We want to upgrade the PLCs to Control Logix Firmware 20.58.How can I determine if they are compatible?

In the BACnet software WebCTRL the value is 65.88 but in KEPServerEX the value is 66.  I forced to read and the timestamp updated but the value remained the same. I thought it was rounding it or something. I changed address to a different temperature that did show decimal places and it updated to that point's value and showed decimal places. I then switched the address back and only after doing so did it show a current value with decimal places. It's a little concerning that the value was shown as good and the timestamp having updated but the value  seems to be old. Is there a bug in the BACnet driver or possibly some weird dead band? In WebCTRL the value is currently 65.71 and is fluctuating a tenth of a degree every 5 or 10 seconds. In KEPServerEX it's just stuck at 65.86 and no longer seems to update. The polling rate is very slow but again if I force that one value to read or wait for the normal polling the timestamp updates but the value doesn't updat

Currently using KepServerEx V6 (V6.14.263.0) and unable to open the OPC UA Configuration Manager utility. This is making it difficult to trust new certificates.

Hello.I am currently reviewing a new project.I am considering whether to configure the new server with Windows Server 2022 or Windows Server 2025.If KepserverEX works properly on Windows Server 2025, I would like to configure it with Windows Server 2025.Could you let me know whether this product is compatible with Windows Server 2025?

I was following this tutorial to setup a MQTT connection between AWS and my KEPServer: https://www.youtube.com/watch?v=pr08r8B2wQE Both the KEPServer and AWS IoT Core are configured on the same machine but the connection is not working properly. What tutorial should I follow to properly setup this connection? 

Is IoT gateway included in a Kepware+ subscription?