I can't write to a tag, that does reads successfully.

[William-Brumble]

Summary:

I want to write to some indexes inside an array in a program scope tag. I'm able to read the tags, but when I attempt to write I get the following error:

Error: TIMEOUT occurred while writing Writing Tag: Program:[program].[tag-name]

Do you guys have a discord server?

Current Behavior:

When attempting to write to a tag array it's rejecting the promise on a TIMEOUT error.

Expected Behavior:

Write to manipulated tag array indexes.

Context

export const sendCommand = async (command: Command) => {
    try {
        const PLC = new Controller();
        await PLC.connect(command.ip, command.slot);

        const programName = command.commandTag.split(":")[1].split(".")[0];
        const tagName = command.commandTag.split(".")[1];
        const tagObj = new Tag(tagName, programName, Types.REAL, 0, 1, 1000);

        await PLC.readTag(tagObj);

        for (let i = 0; i < command.parameters.length; i++) {
            const parameter = command.parameters[i];
            tagObj.value[i] = parameter.value;
        }
        tagObj.value[command.offsetNum] = command.command;

        await PLC.writeTag(tagObj); // rejects this promise

        await PLC.disconnect();
    } catch (error) {
        console.log(error);
    }
};

Environment:

• Package version (Use npm list - e.g. 1.0.6): 2.6.7
• Node Version (Use node --version - e.g. 9.8.0): 18.16.1
• Operating System and version: Ubuntu 23.04
• Controller Type (eg 1756-L83E/B): 1756-L84E
• Controller Firmware (eg 30.11): 32.013

[William-Brumble]

To update this issue, it was being caused by the large array, 1k elements. When I lowered the number of elements the timeouts went away.

[SerafinTech]

Yep. That is a bug / missing implementation. Latest commit should work 59141c7 . pull from repo and try out. Not published to NPM yet. You will have to run npm run build where it installed to compile the Typescript.