# Latest **URL:** http://discussions.gridprotectionalliance.org/latest.md?no_subcategories=false&page=1 [Latest](http://discussions.gridprotectionalliance.org/latest.md) · [Categories](http://discussions.gridprotectionalliance.org/categories.md) **Page:** 2 --- ## [Grafana 12.1.1 + openHistorian plugin 2.1.0: “Cannot convert undefined or null to object” even though datapoints are returned](http://discussions.gridprotectionalliance.org/t/grafana-12-1-1-openhistorian-plugin-2-1-0-cannot-convert-undefined-or-null-to-object-even-though-datapoints-are-returned/1440)
**Author:** [@Renan\_Pires](http://discussions.gridprotectionalliance.org/u/Renan_Pires)\ **Replies:** 4\ **Last updated:** [September 13, 2025, 10:32pm UTC](http://discussions.gridprotectionalliance.org/t/grafana-12-1-1-openhistorian-plugin-2-1-0-cannot-convert-undefined-or-null-to-object-even-though-datapoints-are-returned/1440 "2025-09-13T22:32:47Z")
Hello, I hope this message finds you well. I’m running openHistorian 2 (2.8.157) on Windows Server 2022 and Grafana 12.1.1 on the same machine. After installing the gridprotectionalliance-openhistorian-datasource v2… --- ## [Archived Data Files Read Options](http://discussions.gridprotectionalliance.org/t/archived-data-files-read-options/1442)
**Author:** [@jarurlaj](http://discussions.gridprotectionalliance.org/u/jarurlaj)\ **Replies:** 1\ **Last updated:** [September 11, 2025, 3:28pm UTC](http://discussions.gridprotectionalliance.org/t/archived-data-files-read-options/1442 "2025-09-11T15:28:46Z")
Hi guys, I am interested in specifying an Archive Directory for our openHistorian instance. I understand that the application will now archive data to the the specified archive drive, but I am a little confused about ho… --- ## [CsvInputAdapter Example or Documentation?](http://discussions.gridprotectionalliance.org/t/csvinputadapter-example-or-documentation/35)
**Author:** [@Reza](http://discussions.gridprotectionalliance.org/u/Reza)\ **Replies:** 13\ **Last updated:** [August 4, 2025, 6:53pm UTC](http://discussions.gridprotectionalliance.org/t/csvinputadapter-example-or-documentation/35 "2025-08-04T18:53:13Z")
Hello, I have questions on how to get the CSVInputAdapter to work. I couldn't find any examples or documentation on it except the source file : https://github.com/GridProtectionAlliance/gsf/blob/master/Source/Libraries… --- ## [IEEE C37.118.2 2024 Version](http://discussions.gridprotectionalliance.org/t/ieee-c37-118-2-2024-version/1436)
**Author:** [@Gabriel\_Effting](http://discussions.gridprotectionalliance.org/u/Gabriel_Effting)\ **Replies:** 3\ **Last updated:** [August 1, 2025, 4:07pm UTC](http://discussions.gridprotectionalliance.org/t/ieee-c37-118-2-2024-version/1436 "2025-08-01T16:07:31Z")
Hello everyone, Does anyone know if there is already any information on whether the GPA programs openPDC and openHistorian will be updated to work with the 2024 version of IEEE C37.118.2, and when this will happen? --- ## [Phasor Protocols Library Hardware Requirements](http://discussions.gridprotectionalliance.org/t/phasor-protocols-library-hardware-requirements/1435)
**Author:** [@papuprior](http://discussions.gridprotectionalliance.org/u/papuprior)\ **Replies:** 8\ **Last updated:** [August 1, 2025, 3:23pm UTC](http://discussions.gridprotectionalliance.org/t/phasor-protocols-library-hardware-requirements/1435 "2025-08-01T15:23:58Z")
What should be the minimum hardware requirement to read at least 10 number of PMUs with 60 -100 frames per second ? \*\* Using the phasor protocols library. Reading 10 no. of PMUs with 60 frames (1 frame has 50 measureme… --- ## [Trending Measurements in OpenHistorian](http://discussions.gridprotectionalliance.org/t/trending-measurements-in-openhistorian/1432)
**Author:** [@jarurlaj](http://discussions.gridprotectionalliance.org/u/jarurlaj)\ **Replies:** 2\ **Last updated:** [July 23, 2025, 1:48pm UTC](http://discussions.gridprotectionalliance.org/t/trending-measurements-in-openhistorian/1432 "2025-07-23T13:48:01Z")
Hi there, I am interested in graphing some real-time measurements but am unable to select the points which I wish to trend. The check box is grayed-out and when I select the point name, I am redirected to another page. … --- ## [ERRO on System Console - Array size parameter: Length](http://discussions.gridprotectionalliance.org/t/erro-on-system-console-array-size-parameter-length/1431)
**Author:** [@luis\_philipe\_Morais](http://discussions.gridprotectionalliance.org/u/luis_philipe_Morais)\ **Replies:** 6\ **Last updated:** [July 14, 2025, 8:45pm UTC](http://discussions.gridprotectionalliance.org/t/erro-on-system-console-array-size-parameter-length/1431 "2025-07-14T20:45:03Z")
Hello, After configuring an OpenPDC as a concentrator, 3 PMUs. I noticed the following error on the Remote System Console. I also noticed that my system has 63 defined measurements, but the PPA code starts from 404.… --- ## [Frame rate lower than configured in Outputstream](http://discussions.gridprotectionalliance.org/t/frame-rate-lower-than-configured-in-outputstream/1354)
**Author:** [@LuizFreire](http://discussions.gridprotectionalliance.org/u/LuizFreire)\ **Replies:** 23\ **Last updated:** [July 14, 2025, 12:57pm UTC](http://discussions.gridprotectionalliance.org/t/frame-rate-lower-than-configured-in-outputstream/1354 "2025-07-14T12:57:01Z")
I configured the value of 60 in Outputstream for the “Frames per second” and “Nominal frequency” parameters, but I am only receiving 8~10.xx frames/sec in the Connection Tester. Any ideas on how to improv… --- ## [Clarification on Key Differences Between IEEE C37.118-2018 and IEEE C37.118-2024 Standards](http://discussions.gridprotectionalliance.org/t/clarification-on-key-differences-between-ieee-c37-118-2018-and-ieee-c37-118-2024-standards/1427)
**Author:** [@Rajeshwaribollu](http://discussions.gridprotectionalliance.org/u/Rajeshwaribollu)\ **Replies:** 1\ **Last updated:** [July 9, 2025, 5:00pm UTC](http://discussions.gridprotectionalliance.org/t/clarification-on-key-differences-between-ieee-c37-118-2018-and-ieee-c37-118-2024-standards/1427 "2025-07-09T17:00:35Z")
Hello everyone, I’m currently working on an application involving synchrophasor data and PMU communication, and want to explore the practical differences between the IEEE C37.118-2018 and the IEEE C37.118-2024 standards… --- ## [Filter Data based on value for Count Query](http://discussions.gridprotectionalliance.org/t/filter-data-based-on-value-for-count-query/1425)
**Author:** [@jarurlaj](http://discussions.gridprotectionalliance.org/u/jarurlaj)\ **Replies:** 3\ **Last updated:** [June 26, 2025, 3:03pm UTC](http://discussions.gridprotectionalliance.org/t/filter-data-based-on-value-for-count-query/1425 "2025-06-26T15:03:32Z")
Hi I’m building a stat panel in Grafana to track the count of low gas trips. This is a binary point and I’m wondering if there is a way to filter the value of the point such that I only count when the value is 1 (i.e. th… --- ## [ADO Adapter works locally but fails on other machine](http://discussions.gridprotectionalliance.org/t/ado-adapter-works-locally-but-fails-on-other-machine/1423)
**Author:** [@Tagan](http://discussions.gridprotectionalliance.org/u/Tagan)\ **Replies:** 2\ **Last updated:** [June 23, 2025, 2:16pm UTC](http://discussions.gridprotectionalliance.org/t/ado-adapter-works-locally-but-fails-on-other-machine/1423 "2025-06-23T14:16:18Z")
I developed an ADO adapter that integrates with my custom TCP server built using Node.js. It runs correctly on my personal machine. However, after copying the ADO adapter to a university machine, it no longer functions a… --- ## [POWERCAL and BULK\_SEQUENCE adapters: Filtering PMUs based on framerate](http://discussions.gridprotectionalliance.org/t/powercal-and-bulk-sequence-adapters-filtering-pmus-based-on-framerate/1422)
**Author:** [@Korunekosama](http://discussions.gridprotectionalliance.org/u/Korunekosama)\ **Replies:** 6\ **Last updated:** [June 20, 2025, 8:09pm UTC](http://discussions.gridprotectionalliance.org/t/powercal-and-bulk-sequence-adapters-filtering-pmus-based-on-framerate/1422 "2025-06-20T20:09:31Z")
Hello ! With the addition of 100 fps PMUs in my pool, I’m trying to configure POWERCALC and BULK\_SEQUENCE adapters in openHistorian. Up to now, I’ve been using them with their default settings and a framerate of 50 fps,… --- ## [openPDC -\> openHistorian STTP : 2 openPDC Concentrator in one STTP stream to openHistorian?](http://discussions.gridprotectionalliance.org/t/openpdc-openhistorian-sttp-2-openpdc-concentrator-in-one-sttp-stream-to-openhistorian/1420)
**Author:** [@Korunekosama](http://discussions.gridprotectionalliance.org/u/Korunekosama)\ **Replies:** 4\ **Last updated:** [June 17, 2025, 12:51pm UTC](http://discussions.gridprotectionalliance.org/t/openpdc-openhistorian-sttp-2-openpdc-concentrator-in-one-sttp-stream-to-openhistorian/1420 "2025-06-17T12:51:46Z")
Hello, Initial situation: I am receiving PMU data in openPDC from a third-party PDC software, via a C37.118 stream at 50 fps. This stream includes both PMUs with a native resolution of 50 fps and PMUs with a native reso… --- ## [Please help doesnt show measurent data](http://discussions.gridprotectionalliance.org/t/please-help-doesnt-show-measurent-data/1419)
**Author:** [@Pesso](http://discussions.gridprotectionalliance.org/u/Pesso)\ **Replies:** 1\ **Last updated:** [June 9, 2025, 9:39pm UTC](http://discussions.gridprotectionalliance.org/t/please-help-doesnt-show-measurent-data/1419 "2025-06-09T21:39:53Z")
I have a problem with seeing data using your Python library, but I don’t understand why this shows 0 measurent --- ## [I cant see Data I'm writing](http://discussions.gridprotectionalliance.org/t/i-cant-see-data-im-writing/1410)
**Author:** [@Pesso](http://discussions.gridprotectionalliance.org/u/Pesso)\ **Replies:** 7\ **Last updated:** [June 6, 2025, 1:17pm UTC](http://discussions.gridprotectionalliance.org/t/i-cant-see-data-im-writing/1410 "2025-06-06T13:17:34Z")
Hello, I am using the Python library for OpenHistorian, but I am having trouble visualizing the data I am writing. What I need is to be able to send data and view it in the software’s trend visualization. --- ## [No data in grafana but openhistorian is OK](http://discussions.gridprotectionalliance.org/t/no-data-in-grafana-but-openhistorian-is-ok/1415)
**Author:** [@Philippe](http://discussions.gridprotectionalliance.org/u/Philippe)\ **Replies:** 20\ **Last updated:** [June 3, 2025, 6:38pm UTC](http://discussions.gridprotectionalliance.org/t/no-data-in-grafana-but-openhistorian-is-ok/1415 "2025-06-03T18:38:20Z")
Hello, The problem is in the title. The data is indeed collected by OpenHistorian. The tags are present in Grafana, but I don’t have any data. Thank you for your help. config: win serveur 2022 data base type: sql… --- ## [Github login doesn't work for access Discussion Board](http://discussions.gridprotectionalliance.org/t/github-login-doesnt-work-for-access-discussion-board/1417)
**Author:** [@Stef.H](http://discussions.gridprotectionalliance.org/u/Stef.H)\ **Replies:** 1\ **Last updated:** [May 27, 2025, 6:08pm UTC](http://discussions.gridprotectionalliance.org/t/github-login-doesnt-work-for-access-discussion-board/1417 "2025-05-27T18:08:24Z")
Hello, The Github account login method seems to not work properly : I’ve created a new account to bypass it ; but it would be great if it would be fixed ! :slight\_smile: Stéphane --- ## [Grafana 11.4.0 (nightly build) : Custom variable are not working anymore](http://discussions.gridprotectionalliance.org/t/grafana-11-4-0-nightly-build-custom-variable-are-not-working-anymore/1418)
**Author:** [@Stef.H](http://discussions.gridprotectionalliance.org/u/Stef.H)\ **Replies:** 0\ **Last updated:** [May 27, 2025, 12:00pm UTC](http://discussions.gridprotectionalliance.org/t/grafana-11-4-0-nightly-build-custom-variable-are-not-working-anymore/1418 "2025-05-27T12:00:16Z")
"I’ve been trying for several days to get a Grafana version higher than 9.5.1 to work, in order to use certain plugins that are only compatible with Grafana versions above 10 — without success. After an initial attempt … --- ## [Treads tunning parameters](http://discussions.gridprotectionalliance.org/t/treads-tunning-parameters/1414)
**Author:** [@Janio\_Leonardo\_Los](http://discussions.gridprotectionalliance.org/u/Janio_Leonardo_Los)\ **Replies:** 1\ **Last updated:** [May 21, 2025, 4:33pm UTC](http://discussions.gridprotectionalliance.org/t/treads-tunning-parameters/1414 "2025-05-21T16:33:53Z")
Hi, I have some bootlenecks on Openhistorian but my CPU is = 50%. maybe I have treads limits impacting my system? Can I configure the Treads limit to try expand the CPU capacity? There are others parameters that can be… --- ## [Error - Failed to load adapter "STATISTIC!SERVICES"](http://discussions.gridprotectionalliance.org/t/error-failed-to-load-adapter-statistic-services/1413)
**Author:** [@leticia\_acs](http://discussions.gridprotectionalliance.org/u/leticia_acs)\ **Replies:** 2\ **Last updated:** [May 16, 2025, 12:58pm UTC](http://discussions.gridprotectionalliance.org/t/error-failed-to-load-adapter-statistic-services/1413 "2025-05-16T12:58:29Z")
Hi! I’ve been having this error when I use openPDC, I don’t know why… I already tried uninstalling it and installing it again, but it’s not working. Can someone help me with that, please? Thank you! --- ## [Using StreamSplitter 1.1.7 to send one input stream to multiple servers](http://discussions.gridprotectionalliance.org/t/using-streamsplitter-1-1-7-to-send-one-input-stream-to-multiple-servers/1412)
**Author:** [@Korunekosama](http://discussions.gridprotectionalliance.org/u/Korunekosama)\ **Replies:** 5\ **Last updated:** [May 13, 2025, 12:10pm UTC](http://discussions.gridprotectionalliance.org/t/using-streamsplitter-1-1-7-to-send-one-input-stream-to-multiple-servers/1412 "2025-05-13T12:10:18Z")
Hello, I am trying to test a new configuration with StreamSplitter. Currently, I have a connection configured as follows ; that’s work fine: StreamSplitter connects to SOURCE\_SERVER to retrieve the source data. Stream… --- ## [directly query a PLC in Modbus TCP with Open Historian](http://discussions.gridprotectionalliance.org/t/directly-query-a-plc-in-modbus-tcp-with-open-historian/1404)
**Author:** [@Philippe](http://discussions.gridprotectionalliance.org/u/Philippe)\ **Replies:** 6\ **Last updated:** [May 9, 2025, 3:51pm UTC](http://discussions.gridprotectionalliance.org/t/directly-query-a-plc-in-modbus-tcp-with-open-historian/1404 "2025-05-09T15:51:05Z")
Hello, I would like to know if it’s possible to directly query a Modbus TCP PLC (read holding register code 03) with OpenHistorian. Installation on Windows Server 2022 Thank you for your help Sincerely, --- ## [How to import a .d2 file into openHistorian](http://discussions.gridprotectionalliance.org/t/how-to-import-a-d2-file-into-openhistorian/1400)
**Author:** [@tomnewell02](http://discussions.gridprotectionalliance.org/u/tomnewell02)\ **Replies:** 9\ **Last updated:** [May 8, 2025, 1:48pm UTC](http://discussions.gridprotectionalliance.org/t/how-to-import-a-d2-file-into-openhistorian/1400 "2025-05-08T13:48:55Z")
Hello, I am attempting to import a .d2 file into OpenHistorian to export the data to CSV for a university project. I have been provided a .d2 file ‘ppa-2021-04-08 22.54.03.163\_to\_2021-08-17 04.51.13.039-637647726771420… --- ## [I created a PMU simulator but I can't configure with PMU Connection Tester](http://discussions.gridprotectionalliance.org/t/i-created-a-pmu-simulator-but-i-cant-configure-with-pmu-connection-tester/1398)
**Author:** [@Tagan](http://discussions.gridprotectionalliance.org/u/Tagan)\ **Replies:** 11\ **Last updated:** [May 2, 2025, 1:27pm UTC](http://discussions.gridprotectionalliance.org/t/i-created-a-pmu-simulator-but-i-cant-configure-with-pmu-connection-tester/1398 "2025-05-02T13:27:57Z")
I’m trying to create a PMU simulator for my uni project. I connected to the PMU Connection tester and trying to send Config Frame 2 in PMU Connction tester, but it says: ‘Command “SendConfigurationFrame2” requested at 21… --- ## [Error while loading connection in OpenHistortian](http://discussions.gridprotectionalliance.org/t/error-while-loading-connection-in-openhistortian/1407)
**Author:** [@bhaskarmitra](http://discussions.gridprotectionalliance.org/u/bhaskarmitra)\ **Replies:** 2\ **Last updated:** [April 29, 2025, 7:49pm UTC](http://discussions.gridprotectionalliance.org/t/error-while-loading-connection-in-openhistortian/1407 "2025-04-29T19:49:57Z")
I am trying to send phasor data using TCP and using ConfigFrame2, the Pmu Connection tester works perfectly and i did save the connection file, however if i try to load it on openhistorian i am getting this error. S… --- ## [Sending data to openpdc](http://discussions.gridprotectionalliance.org/t/sending-data-to-openpdc/1396)
**Author:** [@bhaskarmitra](http://discussions.gridprotectionalliance.org/u/bhaskarmitra)\ **Replies:** 2\ **Last updated:** [April 18, 2025, 3:36pm UTC](http://discussions.gridprotectionalliance.org/t/sending-data-to-openpdc/1396 "2025-04-18T15:36:57Z")
I have a smart meter emulator essentially a VM running some scripts to convert pow to phasor. I want to send the data to another VM having openPDC, can you share what are the essential things i need to be aware of? I ha… --- ## [I want to create a PMU generator with TypeScript](http://discussions.gridprotectionalliance.org/t/i-want-to-create-a-pmu-generator-with-typescript/1395)
**Author:** [@Tagan](http://discussions.gridprotectionalliance.org/u/Tagan)\ **Replies:** 1\ **Last updated:** [April 18, 2025, 1:39pm UTC](http://discussions.gridprotectionalliance.org/t/i-want-to-create-a-pmu-generator-with-typescript/1395 "2025-04-18T13:39:41Z")
Hi, I’ve developed a script that generates PMU data, but I’m having trouble getting it to work correctly. I’d like to know if it’s possible to connect to openPDC and the PMU Connection Tester using WebSocket server, and… --- ## [Fortescue calculus](http://discussions.gridprotectionalliance.org/t/fortescue-calculus/1393)
**Author:** [@Andre\_Santos](http://discussions.gridprotectionalliance.org/u/Andre_Santos)\ **Replies:** 2\ **Last updated:** [April 15, 2025, 6:29pm UTC](http://discussions.gridprotectionalliance.org/t/fortescue-calculus/1393 "2025-04-15T18:29:20Z")
Hi, is there anything ready envolving Fortescue calculation in open family? André --- ## [Available vendor devices in OpenMic](http://discussions.gridprotectionalliance.org/t/available-vendor-devices-in-openmic/1384)
**Author:** [@Gabriel\_Effting](http://discussions.gridprotectionalliance.org/u/Gabriel_Effting)\ **Replies:** 2\ **Last updated:** [April 3, 2025, 5:43pm UTC](http://discussions.gridprotectionalliance.org/t/available-vendor-devices-in-openmic/1384 "2025-04-03T17:43:10Z")
Hello, Could you provide me a list of devices that the OpenMic software is capable of communicating with? In the laboratory where I work, we have an RPV311, and we usually access it to download COMTRADE files via the SF… --- ## [openHistorian cannot receive UDP Data](http://discussions.gridprotectionalliance.org/t/openhistorian-cannot-receive-udp-data/1390)
**Author:** [@pabloleibo](http://discussions.gridprotectionalliance.org/u/pabloleibo)\ **Replies:** 1\ **Last updated:** [April 2, 2025, 4:01pm UTC](http://discussions.gridprotectionalliance.org/t/openhistorian-cannot-receive-udp-data/1390 "2025-04-02T16:01:32Z")
Hi! I have a PDC sending data. It works ok when I receive it with the Connection Tester, including the config frame. However, when I try to include it in the openHistorian, it fails when waiting for the config frame. … [Previous page](http://discussions.gridprotectionalliance.org/latest.md?no_subcategories=false) [Next page](http://discussions.gridprotectionalliance.org/latest.md?no_subcategories=false&page=2)