RALARM (FB)

FUNCTION_BLOCK RALARM

Code-Example: receive Alarm

PROGRAM PLC_PRG
VAR
    ralarm : CommFB.RALARM;
    alarm : CommFB.AINFO_TYPE;
    convertID : CommFB.ID_TO_ADDR;
    addr : CommFB.ADDR_TYPE;
    message : STRING;
END_VAR


ralarm.EN := TRUE;
ralarm.MODE := CommFB.RALARM_MODE.ALL_ALARMS;       // receive all alarms from all devices connected to the controller
ralarm.F_ID := PN_Controller.MasterID;              // Filter ID, if MODE = ALL_ALARMS use MasterID here, else the ID of a slot/subslot

ralarm(ainfo := alarm);
WHILE(ralarm.NEW) DO

    convertID(EN := TRUE, ID := ralarm.ID, ADDR := addr);
    IF(convertID.ENO) THEN
        IF(addr.SYSTEM = CommFB.IO_SYSTEM_TYPE.PROFINET_IO) THEN
            message := 'Station ';
            message := concat(message, addr.PN.D.STATIONNAME);
            message := concat(message, ' (Slot = ');
            message := concat(message, TO_STRING(addr.PN.SLOT));
            message := concat(message, ') sends an alarm !');

            //Log Alarm to PLC-Logger
            CmpLog.LogAdd2(CmpLog.LogConstants.LOG_STD_LOGGER, 555, CmpLog.LogClass.LOG_WARNING, 0, 0, message);
        END_IF
    END_IF

    ralarm(ainfo := alarm);     // exec-again
END_WHILE

InOut:

Scope Name Type Comment Input EN BOOL Enable MODE INT Function specifier, see RALARM_MODE enum F_ID DWORD Slot / subslot identification to filter the alarms to receive. | If MODE = RALARM_MODE.ALL_ALARMS user MasterID Output ENO BOOL Function enabled, no error NEW BOOL New alarm received STATUS DWORD Host Controller interface status ID DWORD Identifier of the slot / subslot the alarm is received from (see: AddressConcept) LEN INT Length of the received data record Inout AINFO AINFO_TYPE Alarm data that has been received