Error Message Handling
Messages of error types:
are recoverable. The messages about these errors events are erased from the screen when the error event condition disappears - when the error less request-response cycle is established again. These error messages may be also acknowledged and erased manually by ESC key, but the acknowledged message is redisplayed after a time period 10 sec if the error event condition is still on.
The messages of error types
are not erased automatically if the error condition disappears. They must be acknowledged and erased manually by ESC key.
If error events of more communication drivers are active in the same time, a message about one error event is printed on. When this message is acknowledged and erased manually by ESC key, the message of other active error event is displayed