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CR Connection Refresh
CR | NCR Connection Refresh / No Connection Refresh.
CR Upon returning to a connection with the CCn (Continue in Connection) command, the screen contents are restored exactly as they were before the connection was left. The Connection Refresh Mode helps particularly with UTM applications that work in "Write Modified" Mode with partial masks, and which do not have their own transaction code to restore a corrupted mask (similar to the K3 key in EDT). Connection Refresh does not work with connections in Asynchronous Mode (ACn).
NCR Returning to a connection mask with CCn will repeat only the last partial mask. In Line Mode, only the last input/output will be repeated.
Standard: CR
Note:
To prevent problems when opening multiple connections using a Startup File, it may be necessary to switch CR mode off before opening the first connection (NCR), and back on again after opening the last connection.