About Sgilk

Sgilk · ‎08-17-2023

Hi Adam, I took a look at this and am seeing some strange pieces which may or may not be the issue. If you could provide the entire widget code or browser debug messages, I could look further. Right click your browser, select inspect, then move to the console tab. From here you should see error messages from the javascript file. Definitely the syntax in your onInit function is incorrect. You have your handleButtonPress, handleButtonRelease and other widget methods defined inside the onInit function body.

Sgilk · ‎08-15-2023

Hello, This will be difficult to troubleshoot without more information or source code. Is there any error in the CMake or snap build process? I would first try to run this on your local machine rather than the CORE. Below is a good example with many imported libraries. Datalayer EtherCAT IO

Sgilk · ‎08-14-2023

Is there any specification on memory allocation to the datalayer? How does this translate to number of tags etc.? For example, if I was to provide 1000000 tags on the datalayer... at what point would I see limitations?

Sgilk · ‎08-09-2023

There are a number of ways to act as a client to a MySQL server from the ctrlX CORE. The question is what do you need the data for? The IoT Dashboard app, for example, can use MySQL as a data source to create visualizations of the data. With Node-RED, you can read/write data and utilize it how you wish via javascript (node-red-node-mysql) You could also write a custom application to access and manipulate a MySQL database. See example below.

Sgilk · ‎08-08-2023

Hello hundch, This is just a limitation of the debug window in Node-RED. The data is still present. You can confirm by accessing one of the array elements beyond index 1000. See the flow below. It is possible to increase the string character and array size limits in Node-RED settings, but not in the built snap from the ctrlX Store. [ { "id": "b5371fa7fab0afdc", "type": "tab", "label": "Flow 1", "disabled": false, "info": "", "env": [] }, { "id": "e0a278c4f5583337", "type": "function", "z": "b5371fa7fab0afdc", "name": "Fill Array", "func": "var obj = {array: []};\nfor (let i = 0; i < 2000; i++) {\n obj.array[i] = i;\n}\nmsg.payload = obj;\nreturn msg;", "outputs": 1, "noerr": 0, "initialize": "", "finalize": "", "libs": [], "x": 280, "y": 60, "wires": [ [ "012d8ba6e83ea819", "6bc65ad39e6484f9" ] ] }, { "id": "772e76da13ce7151", "type": "inject", "z": "b5371fa7fab0afdc", "name": "Initiate", "props": [ { "p": "payload" }, { "p": "topic", "vt": "str" } ], "repeat": "", "crontab": "", "once": false, "onceDelay": 0.1, "topic": "", "payload": "", "payloadType": "date", "x": 90, "y": 60, "wires": [ [ "e0a278c4f5583337" ] ] }, { "id": "012d8ba6e83ea819", "type": "debug", "z": "b5371fa7fab0afdc", "name": "Output Array to Debug Window", "active": true, "tosidebar": true, "console": false, "tostatus": false, "complete": "payload", "targetType": "msg", "statusVal": "", "statusType": "auto", "x": 510, "y": 60, "wires": [] }, { "id": "6bc65ad39e6484f9", "type": "function", "z": "b5371fa7fab0afdc", "name": "Access Element 1950", "func": "node.warn(msg.payload.array[1950]);\nreturn msg;", "outputs": 1, "noerr": 0, "initialize": "", "finalize": "", "libs": [], "x": 480, "y": 120, "wires": [ [] ] } ]

About Sgilk

Re: custom widget: why won't this onInit execute?

Re: third-part libraries used in snap package

Datalayer Memory Allocation

Re: how to communicate with My sql server

Re: Array bigger than 1000 in Node red ??