O16-DPT9 rev A

* 0520-001-H002 (O16-DPT9) DRAWING NO. 41285751-001-01 PAGE 4

0151 * LETTER E, AN END MESSAGE IS TYPED OUT AND THE PROGRAM COMES 0152 * TO A HALT. 0153 * 0154 * 0155 * ERRORS 0156 * 0157 * DETECTION OF AN ERROR IS INDICATED BY A MESSAGE ON THE ASR. THE 0158 * TABLE BELOW EXPLAINS THE ERROR MESSAGES THAT MAY BE PRINTED OUT. 0159 * 0160 * LMTL - LIMIT LATE - NOT OCCURED BEFORE FIVE PERCENT ABOVE 0161 * SPECIFIED VALUE 0162 * LMTE - LIMIT EARLY - OCCURED LESS THAN FIVE PERCENT BELOW 0163 * SPECIFIED VALUE 0164 * BSMC - PLOTTER BUSY AFTER MASTER CLEAR 0165 * ITMC - PLOTTER INTERRUPTING AFTER MASTER CLEAR 0166 * ITMP - PLOTTER INTERRUPTING WHEN MASK RESET 0167 * NIMS - PLOTTER NOT INTERRUPTING WHEN MASK SET 0168 * NBXX - PLOTTER NOT BUSY IMMEDIATELY AFTER MOVING XX 0169 * BSXX - PLOTTER REMAINING BUSY 4(4.2 OPTION 2112)MILLI-SECONDS 0170 * AFTER MOVING XX 0171 * WHERE XX MAY BE 0172 * NT-NORTH - PAPER UP 0173 * ST-SOUTH - PAPER DOWN 0174 * ET-EAST - PEN RIGHT 0175 * WT-WEST - PEN LEFT 0176 * NE-NORTHEAST - PAPER UP, PEN RIGHT 0177 * NW-NORTHWEST - PAPER UP, PEN LEFT 0178 * SE-SOUTHEAST - PAPER DOWN, PEN RIGHT 0179 * SW-SOUTHWEST - PAPER DOWN, PEN LEFT 0180 * UP - PEN UP 0181 * DN - PEN DOWN 0182 * NIND - NO INTERRUPT WITHIN 4(4.2 OPTION 2112)MILLI-SECONDS 0183 * (DIRECTIONAL) 0184 * IVCD - INTERRUPT NOT CAUSED BY PLOTTER (DIRECTIONAL) 0185 * BAID - PLOTTER REMAINING BUSY AFTER INTERRUPT (DIRECTIONAL) 0186 * NINZ - NO INTERRUPT WITHIN 25 MILLI-SECONDS (Z-AXIS) 0187 * IVCZ - INTERRUPT NOT CAUSED BY PLOTTER (Z-AXIS) 0188 * BAIZ - PLOTTER REMAINING BUSY AFTER INTERRUPT (Z-AXIS) 0189 * WHERE Z-AXIS IS VERTICAL LINE OF TRAVEL OF THE PEN 0190 * 0191 * NB ALL TIMINGS AND DELAYS ARE CALCULATED USING A MACHINE 0192 * CYCLE TIME OF 0.86 MICRO-SECONDS FOR DDP-516 0193 * AND 1.6 MICRO-SECONDS FOR H316 0194 * 0195 * AFTER AN ERROR MESSAGE IS OUTPUT, THE PEN IS MOVED NORTH TWENTY 0196 * UNIT LENGTHS AND Q6 (TEST NO?) IS ASKED 0197 * 0198 * 0199 * METHOD 0200 *