To create an alarm table in visualization, we need to enable the 'Event table' special control feature in the PLC properties first. 

Add the visualization to your project.  Right click your PLC Project, select 'add', then visualization.

After adding the visualization, we will enable the 'Event table' in the project properties. Right click your PLC Project and choose 'Properties'. 

Select the 'Visualization Profile' on the left menu and check the 'EventTable' checkbox. 

Open the visualization and go to Toolbox. You will now see the 'Event Table' under special controls tools. Drag and drop it to workspace. 

Add the Tc2_Utilities library into your project. 

Add the alarm event array declaration in your MAIN program and build your project. 

stAlarmEvents :  ARRAY[1..80] OF ST_ReadEvent;

Open the visualization, select the event table in the workspace and go to properties. In the 'Event data array' section, select the array variable we declared in the MAIN program.

In the MAIN program, now we can define our alarm events. Add the code below. 

//Alarm 1
stAlarmEvents[1].nSourceId :=  1;
stAlarmEvents[1].nEventId := 1;
stAlarmEvents[1].nClass := 7;
stAlarmEvents[1].nConfirmState := 1;
stAlarmEvents[1].nResetState := 1;
stAlarmEvents[1].sSource := 'fbSensorAlarmCheck';
stAlarmEvents[1].sDate := '09/16/2022';
stAlarmEvents[1].sTime := '11:41:51';
stAlarmEvents[1].sComputer := 'PLC-1';
stAlarmEvents[1].sMessageText := 'Prox Sensor has failed';
stAlarmEvents[1].bQuitMessage := FALSE;
stAlarmEvents[1].bConfirmable := TRUE;


//Alarm 2
stAlarmEvents[2].nSourceId :=  1;
stAlarmEvents[2].nEventId := 1;
stAlarmEvents[2].nClass := 8;
stAlarmEvents[2].nConfirmState := 1;
stAlarmEvents[2].nResetState := 1;
stAlarmEvents[2].sSource := 'fbDriveErrorCheck';
stAlarmEvents[2].sDate := '09/16/2022';
stAlarmEvents[2].sTime := '11:45:51';
stAlarmEvents[2].sComputer := 'PLC-1';
stAlarmEvents[2].sMessageText := 'Check motor parameters!';
stAlarmEvents[2].bQuitMessage := FALSE;
stAlarmEvents[2].bConfirmable := TRUE;

nSourceID - You can assign a source ID

nEventId - You can assign event an ID

nClass - 

(* nClass
1 - Maintenance 
2 - Message
3 - Hint
4 - Information
5 - Instruction
6 - Warning
7 - Alarm
8 - Parameter Error
*)

sSource - You can use the function block name which is generating the alarm. 

sMessageText - Your alarm message. 

You can check this tutorial the get the system local time and use it for sDate and sTime. You would need to convert the data to string and concatenate the hour, min, sec info etc... 

To clear the alarms, you can declare and empty event structure and assign it to your array elements when you need to clear them. 

stEmptyEvent : ST_ReadEvent;

IF bClearAlarms THEN
    stAlarmEvents[1] := stEmptyEvent;
    stAlarmEvents[2] := stEmptyEvent;
END_IF

 You can also use FB_AdsReadEvents function block to read all the events in the ADS and display them in the event table and you can utilize the Beckhoff TcEventConfigurator to create and configure your alarms.