IBM 3590 manual Routine Messages-General Custom, Routine Messages-Clean

mount portion of the demount/mount message is displayed. For a loaded cartridge, the demount portion of the message is deleted when the accessor removes a cartridge from the loader.

A message control of “100” (alternate message) will cause the demount and mount messages to alternate as long as a cartridge is loaded. Demount is deleted when a cartridge is unloaded.

Routine Messages—General (Custom):

vCreation: A General message is created when a Display Message is received that requests a General message. A General message received while an earlier General message exists replaces the first General message.

vDisplayed: A General message displays when it is created.

vDeletion: When the device activity changes, or the Enter key is pressed, or when any other Routine Message enters a display mode a General message is deleted.

Routine Messages—Clean:

vCreation: When the device microcode detects that the device needs cleaning, it creates a Clean message. This is checked at every unload. When a diagnostic routine detects the need for cleaning, it may also create a Clean message.

vStored: When created, a Clean message is stored. When the Enter button is pressed, a displayed Clean message is stored. It is overlaid by another stored message, or if no other intervention message is present, by the Options/Status screen.

vDisplayed: When the device is unloaded, a Clean message is displayed.

vDeletion: When the device is loaded, a Clean message is deleted. This occurs regardless of whether the cartridge loaded was a data cartridge or a cleaner cartridge. When the currently-loaded cartridge is unloaded, another Clean message will be generated if the device was not cleaned. A Clean message is also deleted when the device goes through a power-off to power-on cycle or when the operator panel Reset button is pressed.

Combination Rules for Routine Messages: When any message enters display mode, it is combined with any other messages that already may be displayed in a sequence of messages. Newly-displayed messages are appended at the end of the message sequence.

In most cases, the message sequence will not grow beyond 2 or 3 alternating messages. It can grow to a 4- or 5-part message if a Clean message is also displayed. This situation happens when 2-part mount messages, 2-part demount messages, or combined demount/mount messages are followed by a 2-part General message.

223590 Operator Guide