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Super simple worked example of swapping users. This function block requies parameters of the known username and password. This could be used as an alternative to Logout when you need to logout to a base "minimal" user level.
(function (TcHmi) {
var LoginUser = function (UserName,Password,StayLoggedIn,ReloadPage) {
if (TcHmi.Server.isWebsocketReady()) {
var request = {
"requestType": "ReadWrite",
"commands": [
{
"commandOptions": ["SendErrorMessage", "SendWriteValue"],
"symbol": "Login",
"writeValue":
{
"userName": UserName,
"password": Password,
"persistent": StayLoggedIn
}
}
]
};
// Send request to TwinCAT HMI Server.
TcHmi.Server.request(request, function (data) {
// Callback handling.
if (data.error !== TcHmi.Errors.NONE) {
// Handle TcHmi.Server class level error here.
return;
}
var response = data.response;
if (response.error !== undefined) {
// Handle TwinCAT HMI Server response level error here.
return;
}
var commands = response.commands;
if (commands === undefined) {
return;
}
for (var i = 0, ii = commands.length; i < ii; i++) {
var command = response.commands[i];
if (command === undefined) {
return;
}
if (command.error !== undefined) {
// Handle TwinCAT HMI Server command level error here.
return;
}
// Handle result...
if (command.symbol = "Login") {
if (StayLoggedIn) {
// Remember the current session for 30 days
document.cookie = "sessionId=" + command.readValue + ";path=/;max-age=" + 60 * 60 * 24 * 30;
} else {
// Reset max-age
document.cookie = "sessionId=" + command.readValue + ";path=/";
}
if (ReloadPage) {
// login was successful, load base url
if (window.location.href.indexOf("Login") != -1) {
window.location.href = window.location.href.replace(/Login.*?\//, '');
}
else {
window.location.reload();
}
}
}
}
});
}
};
TcHmi.Functions.registerFunction('LoginUser', LoginUser);
})(TcHmi);Not required. Simply open the project.
This project uses TcXaeShell 3.1.4024.10 and TwinCAT HMI 1.10.1336.404
This is not a guide for TcXaeShell, please visit http://beckhoff.com/ for further guides