User`s guide

12 DC 900-1340I
BSC Programmer’s Guide
Figure A–2: Device Selection Sequence.......................... 195
Figure A–3: Normal Operation for Virtual Printer ................... 198
Figure A–4: Printer Error During Printout........................ 199
Figure A–5: Normal Operation of Virtual Display.................... 200
Figure A–6: BSC 3270 Command Checking ....................... 201
Figure A–7: RVI Ignored by BSC 3270 Master . . . ................... 202
Figure A–8: WACK Ignored by BSC3270 Master.................... 203
Figure A–9: BSC 3270 Sense/Status Bytes ........................ 204
Figure A–10: BSC 3270 Status Message Format . . . ................... 204
Figure B–1: Software Initialization Sequence ...................... 210
Figure B–2: Start Link Sequence Using Two Commands................ 211
Figure B–3: Signon Procedure (Transmit with Immediate Data)............ 213
Figure B–4: Signon Procedure (Transmit with Delayed Data) ............. 214
Figure B–5: Signon Procedure (Receive)......................... 215
Figure B–6: Data Reception Sequence.......................... 216
Figure B–7: Normal Data Transmission Sequence.................... 217
Figure B–8: Two-message Sequence with Priority Message Interrupt ......... 219
Figure B–9: Recoverable Error Sequence......................... 220
Figure B–10: No Response from the Remote Station................... 221
Figure B–11: Transmission Aborted by the Remote Station ............... 222
Figure B–12: Link Stop Sequence ............................. 223