A query MDC Units returns a summary display of all the Unit ID’s currently logged-on to the Crimestar MDC system. The display shows both the UNIT ID and the corresponding computer MDC # as known by the controller at the time of the query. Upon clicking the Query MDC Units command button the query is transmitted immediately. This query does not use a popup dialog.
When performing this same query from the controller, the display will also
show the date and time of the last transmit activity from that specific
MDC unit and if (COMTYPE=2) running in a TCP based communications environment,
it will also show you the Connection ID and IP Address of the MDC units.
Once an MDC address communicates with the controller, the controller will remember that MDC address and register it. Once the number of MDC addresses registered equals the number of MDC workstation licenses purchased, attempts by additional MDC Addresses to login to the controller will be denied. Units can logon and logoff of MDC addresses as needed but the number of MDC licenses purchased will always limit the number of unique MDC Addresses than can be registered with the controller.