Begin or End of File Structured Field Error Conditions

PC/3270 does not accept transmission of data belonging to two separate print jobs in the same chain. To be accepted by the emulator, Begin of File structured fields must be the first structured field of a chain and End of File structured fields must be the last structured field of a chain.

PC/3270 rejects transmission in the following instances:
  • The emulator receives an End of File structured field without first receiving a Begin of File structured field.
  • The emulator receives a second Begin of File structured field without receiving an intervening End of File structured field.
  • The emulator receives a Begin of File structured field that is not the first structured field following a write structured field command (LU 2, LU 3) or a Function Management Header 1 (LU 1 sessions).
  • The emulator receives an End of File structured field that is not the last structured field following a write structured field command (LU 2, LU 3) or a Function Management Header 1 (LU 1 sessions).