MDC - Free

  Status Monitor Code: AV

To free your unit from an EVENT via the MDC, click the “FREE” (ALT-F) command button.  You will be prompted with a dialog screen to provide an optional comment.  The Unit # field will be pre-filled with your log-in unit id.  In order to free a unit, the unit must either be in a miscellaneous status or already attached to an event and be in a dispatched, eroute or arrived status.  Click the Transmit Button (Alt-T) to send the free unit transaction request to the MDC controller.



When the MDC Controller receives and processes your transaction, it will return a confirmation unit status message.  When the MDC workstation receives this confirmation from the controller, the Unit Status window will change to: “AVAILABLE” and your new unit status will be represented on the status monitor window the next time the data on that windows refreshes.  The example illustration below shows unit 112 logged on to MDC #1 (ADDRESS=1) and indicates that the unit is in an AVAILABLE status.


When multiple units are dispatched (or attached) to an event and a unit FREE’s from that event, a priority Digital Dispatch Warning message will be sent to the other event related units to notify them which dispatched/responding units is no longer responding.  In a digital dispatch environment this is an important safety issue since without notification a responding unit may be left unaware that their fill/backup unit is no longer responding.   If desired this functionality can be suppressed using the ‘DISABLE_FREE_UNIT_ALERT=ON’ setting in the Crimestar.ini file.