VTAM® ready-to-receive (RTR) command

The following list summarizes the previously defined IMS functions performed upon receipt of an RTR command.

  • Any outstanding Fast Path output message is dequeued and IMS removes the workstation from terminal response mode.
  • Any output-protected components are marked unprotected and available for output.
  • Output that is suspended because of a X'0814' sense code on a previous exception response is now allowed.
  • If IMS output is available to be sent, IMS returns a DR1 response, immediately followed by the output message.
  • If no IMS output is available, or if the workstation is in a status where no output can be sent (output stopped or quiesced), IMS returns an exception DR1 followed by an error message indicating no output is available.
  • If an RTR is received during the transmission of MFS-paged output, IMS returns an exception DR1 followed by an error message indicating invalid paging request.
  • Any exception response returned by IMS causes any display component defined for the logical unit to be protected and unavailable for output.