Sending invalid data and other errors

Most of the exception conditions that can occur on SEND MAP and SEND CONTROL commands apply only to the advanced BMS options: logical messages, partitions, and special devices. However, it is also possible to send invalid data to a terminal.

BMS does not check the validity of attribute and data values in the symbolic map, although it does not attempt to send an extended attribute, such as color, to a terminal that is not defined to support that attribute.

For more information about the error conditions that can occur on SEND MAP and SEND CONTROL commands, see CICS API commands.

The effects of invalid data depend on both the specific terminal and the nature of the incorrect data:
  • Invalid data might be interpreted as a control sequence, so that the device accepts the data but produces the wrong output.
  • The screen might display an error indicator.
  • An ATNI abend might occur. The point at which your task is notified of an ATNI depends on whether you specified the WAIT option (see SEND MAP control options).