Kepware

Using the Open Torque Tool Protocol driver, I am struggling connecting a Atlas Copco MT Focus 6000 (not Power Focus). According to the Kepware driver supported devices, this is a supported device. However, it has proven impossible to connect to the LTR tags and the 1201/1202 tags to get torque results. We have validated that the 'Communication' messages are successful and valid, and can validate data via diagnostics. However, the driver does not recognize the data format and sets most tag quality to 'Bad (Out of Service)' We have tried every message revision and MID8 / MID60.  Is it truly possible to get torque result data from an MTF6000 using Kepware's Open Torque Tool Protocol driver?

hi all,I’m trying to setup a Modbus TCP/IP connection on a thingworx Kepware server 6.18, to an energy meter from Circutor (CVM-E3-MINI-ITF-WiEth, manual can be found here M170F01-03.pdf). I’ve setup connections to other energy meters before using Modbus TCP/IP without issues, but with this device I keep getting unrealistic values.I’ve literally tried using all different combinations on Data access & encoding, but the output I’m seeing seems either extremely high or extremely low, sometimes more or less stable but often also varying a lot which can normal if the byte order was swapped.The manual doesn’t really tell much on the Modbus-TCP setup, like what device-id I need to be using. So far I’ve tested mostly with device-ID 1 which seems most logical in that case, but I’ve used other device-id’s like 2 or 7.I’m hoping anyone has some experience with these types of devices or recognizes this type of behaviour and has some ideas on how to solve it.Many thanks in advance.H.

Hi Experts,I'm looking for guidance from Kepware, ThingWorx, and security experts regarding certificate handling between ThingWorx and Kepware, particularly around REST-based integrations and Java truststore behavior.BackgroundUsing Kepware IoT gateway I am downloading MES data.During troubleshooting of a Work Order (WO) download issue between ThingWorx and Kepware, observed that:In one environment, WO downloads failed and the issue appeared to be related to an expired Kepware REST server certificate. After addressing the certificate issue, WO downloads resumed successfully. However, in other environments, the Kepware REST server certificates were also expired, yet ThingWorx-to-Kepware communication and WO downloads continued to function normally.Initial investigation suggested that the difference may be related to the Java truststore (cacerts) contents on the ThingWorx servers. In some environments, the Kepware certificate appears to be trusted/imported into the JVM truststore, while

I currently have a KEPServerEX 6.7.1054.0 instance running on a production server. The original application owner is no longer with the company, and unfortunately, the installer for this exact version is not available in our internal software repository.I do not see a way to obtain this exact legacy installer from PTC, so I am evaluating whether it is safe to proceed using a newer KEPServerEX installer within the 6.x major version.Before moving forward, I would like to confirm a few things to minimize risk in a production environment: License Compatibility Is licensing for KEPServerEX 6.7 generally forward-compatible within newer 6.x releases (e.g., 6.14 or later)? Specifically, will existing licenses (including licensed modules) remain valid after an in-place upgrade? Upgrade Risk / Downtime Considerations Has anyone performed an in-place upgrade from 6.7 to a newer 6.x version in production? Were there any licensing reactivation issues or unexpected service interruptions? Module

Hi,I am using Kepware Server v7.0.236 with FTView v16 on Windows Server 2025 in a Domain setup.  The Kepware Server is installed on the same server as the FTView application.  I have a FTView Client PC (Windows 11 24H2) which runs the FTView client.  The problem is when I run the FTView client on the W11 PC any tags on a graphic which directly address the Kepware server don’t read. I’ve gone through every step of the Kepware “Configuration Guide Remote OPC DA (DCOM)” and had a 2 hour Teams session with Kepware UK Tech support (MAC Solutions) while I’ve had remote desktop connection to the server. We went through the settings on both the Server and Client step by step and confirmed the recommended settings were in place and even uninstalled/reinstalled Kepware but nothing has worked.Anyone had similar issues and found solutions ?

Hi,We are getting frequent warning events in the Allen-Bradley ControlLogix Ethernet Driver even though there are no changes at the PLC end. Communication is mostly stable but warnings keep appearing.Has anyone faced this? Any insights on possible causes or troubleshooting steps would be helpful.Thanks!

Not able to read correct/exact data of siemens S7-300 PLC tags, datatype is TIME OF DAY/datetime/time.Thingworx Kepware Server v6.16.217.0

I have upgraded our Kepware system and I need to remove LinkMaster and the OPC server that is with it.  Since everything seems to break Kepware licenses, are there precautions that need to be taken in uninstalling LinkMaster or can you just use the Windows Uninstaller?

Hello, Has any configured KEPServerEX to be able to run timers between a start and end trigger tags? I want to be able to setup Operation Cycle Time Logging from plcs tags and be able to calculate the time that it takes for the operation. Example: Timer between hit of a start button and final test saying that the test passed without having to create a timer in the plc itself to monitor this operation Thank you

Hi, I have a customer that is using Kepware Server for OPC DA / OPC UA / OPC DA communication between two systems. At the moment we are having issues with certain slow updating tags (booleans and integers) that freezes and are not updated between the two systems. Continuous updating values are no issue... The issue seem to be that the tags gets timed out and are not correctly mirrored between the systems. If we create local subscriptions on the KepServer node on the actual tags the error seem to disappear. Is there a way to configure kepware to establish the subscription to the source tags regardless of the client status? We cant find any correlating error messages in kepware. 

Hi there, I’m trying to set up a connection between Modbus TCP driver in Kepware Server 7 and modbus ModRSsim2 simulator.Port 502 and device ID = 1 are used in both ends.When Kepware starts, it shows the following line i log window:   Channel1 | Starting unsolicited communication. | Protocol = 'TCP', Port = 502.   Should it be something like Modbus TCP Client/Master mode instead ?In Kepware Server 7 where do you switch between Modbus TCP Client/Master mode and Modbus TCP Server/Slave/Unsolicited mode when you set up a channel ?Any guidance would be greatly appreciated.Thanks in advance,Henrik 

We have a connection issue between KepserverEx 6.18 and Janitza UMG96-S2 power measuring device. The connection is working and the tags can be readed via QuickClient but during the reading the quality of some tags randomly switching from good to bad for a while. The strange is that not all of the tags quality switches and it happens randomly. Does anyone has a similar issue with a Modbus TCP connection?

Hi,We are facing with issue that we are not sending the data thru MQTT.On Kepware side there was no message that we are disconnected from MQTT.After several restarts of the Kepware IoT service, the problem was solved, but it reappeared after some time.We have openlogic-openjdk-jre-8u482-b08-windows-x32 JRE version installed on Kepware server. Thanks in advance.

Kepware dooesnt allow for logical/logical non-blocking protocols for rockwell PLCs, when accessing Program tags. This means that if an OPC client needs to access program tags, the PLC needs to be setup with Symbolic addressing, which really slows down the R/W rates on the Kepware OPC UA server. Anyone faced this issue?

We are running KEPServerEX​ as an OPC UA Client​ in a production environment to connect to an IGS OPC UA Server. The total tag count is around 6,000.The issue is that KEPServer frequently suffers from connection losses and reconnections, accompanied by socket errors. Simultaneously, when checking the tag quality via Quick Client (QC), the status shows BAD. Although performing a Reinitialize​ temporarily restores normal operation, the problem recurs frequently, leading to significant data loss. This instability has caused serious frustration for the customer.How can we resolve this issue?

We have a Mariocotta slitter HMI/Industrial PC. The mSATA hard drive failed on the PC. We replaced the drive with a new one, & restored that drive from an old Veeam backup of the system. When we restored it, the Kepware Allen Bradley perpetual license was missing. We have been unable to apply the license on the new drive. We are currently utilizing the emergency 7 day license. What is the normal procedure in this scenario? Our vendor is telling us we will need to buy a new license, but this looks like it could simply be rehosted since the only thing to change was the HDD (PC is the same PC). 

We have many channels and want to organize the channels in folder without affecting the Item ID for the associated tags.For example here, I want to have the ability to make a folder for the dryers and the PRD devices.The folder is merely for organizing within Kepware and should not affect the other systems. Therefore the Item ID, e.g. PRD0147.myDevice.myTag, should not contain the folder. 

I working on one of my projects. As per my application, I want to take data from DCS over TCP/IP into kepware. From kepware i want to publish those data over opc da for other SCADA/DCS that works as opc da client. My quetion is does kepware works as OPC DA server for this application?

Hi there, I’m trying to establish direct communication between an ABB ACS880 drive (using FENA-11/FENA-21 EtherNet/IP adapter) and KEPServerEX.The drive is already communicating successfully with a ControlLogix PLC via Generic Ethernet Module configuration. Current assembly configuration in the PLC is:Input Assembly: 152Output Assembly: 102Data Format: INTSize: 13 INTsNetwork communication is confirmed:-Drive responds to ping-PLC communication is stable and operationalMy goal is to read the drive data directly from Kepware without going through the PLC.However, my Kepware installation currently includes:Allen-Bradley ControlLogix EthernetAllen-Bradley Ethernetbut I do not see a dedicated “EtherNet/IP” driver available.When attempting to use the ControlLogix Ethernet driver directly against the drive IP, Kepware reports: “Node path is invalid”I understand this may be because the ABB drive exposes EtherNet/IP assemblies/CIP objects rather than symbolic Logix tags.Could you please advise:

Hello,I'm reading data from another application via an OPC UA Client on any channel in Kepware. I can receive notifications when the data changes. Is there a way to create notifications before the data changes? Reading at intervals doesn't solve my problem. I have a timestamp indicating when a value has been read. I want to notify the client of the same value when the timestamp changes. 

客戶在開啟kepserver administration的設定時會跳出，invalid or missing user information : data is corrupt跟開啟程式畫面時會當掉在cmd輸入sc config KEPServerEXLoggerV6 depend= KEPServerEXKeySvcV6再開啟錯誤訊息變成general serialization failure

We are experiencing inconsistent data loss between KEPServerEX V6.13.266 and our Atlas Copco Torque Tools. Specifically, torque results are missing in the following scenarios:Power Cycles/Battery Swaps: Results fail to report immediately after switching the tool ON or swapping batteries.Intermittent Drops: We are seeing partial data transfer (e.g., only 5 out of 9 tightening cycles recorded).Please review these cases and provide your recommendations or potential fixes to resolve these synchronization issues.Kindly setup the call to discuss or need more informationThanks,MuraliKrishnan

Hello,I have a PLC program which send the DTL from the PLC, although I can log the timestamp based on the SQL side, is there anyway to log DTL directly from PLC to Kepware with the new/upcomming updates ?

Hi, I currently use LinkMaster to map tags between my field devices and PLC. I want to get rid of LinkMaster and do the mapping in Kepware Server. I currently have Version 6 of KepServerEx. Do I need to update to V7 in order to use the advanced tag linked tags feature or is that available in the version I have now? Also, is there a way to just export my LinkMaster tags and import into Kepware or does it have to be a manual migration? Thanks 🙂

先前客戶在 ODBC 做讀寫，再透過 OPC UA 提供給 InTouch。每日固定時間會出現數值異常。我們已經更換過 Server 環境，也更換過資料庫（MSSQL / MySQL）。若直接接收溫度資料則是正常的，使用 Local Historian 也是正常的。我們嘗試過許多測試方法，目前的結論是：只要資料經過 ODBC，就會發生異常。異常現象大約持續幾分鐘，在這段時間內，A 項數值會突然升高，B 項數值也會升高（沒有太明顯的規律）。而且只會發生在特定時間。想詢問 PTC 或其他夥伴，是否有遇過類似案例，或有任何可能的原因與建議方向。Previously, the customer used ODBC for read/write operations, and the data was then provided to InTouch through OPC UA. Data abnormalities occur at a fixed time every day.We have already replaced the server environment and also changed the database (MSSQL / MySQL). When temperature data is received directly, the values are normal. Using Local Historian also works normally.We have tried many testing approaches, and the current conclusion is that the abnormality only occurs when the data passes through ODBC.The abnormal behavior lasts for a few minutes. During this time, the value of item A suddenly increases, and item B also increases (without a clear pattern).This issue only occurs at a specific time each day.We would