7 Application Instructions API 50-99 b) When the present value in C249 changes from 99 to 100, the drive contact of C249 will be On immediately. When the execution arrives at SET Y17, Y17 will still be affected by the scan time and will output after END instruction. M1000 On immediately C249 Program Example 3: 1. High speed counter interruption: a) Operand D of DHSCS instruction can designate I0 □ 0, □ = 1 ~ 6, as the timing of interruption when the counting reaches its target. b) ES/EX/SS series MPU does not support high speed counter interruption. c) SA/SX/SC series MPU supports high speed counter interruption.
However, when DHSCS instruction designates an I interruption, the designated high speed counter cannot be used in DHSCS, DHSCR, DHSZ d) For SA/SX/SC series MPU, when the counting reaches the target, the interruption will occur. X0 is the instructions. Misuse of high speed counter will result in error. counter for counting input and the interruption No. is I010 (1 phase 2 inputs and A-B phase counter No. C246 ~ C254 can only designate I010). X1 designates I020; X2 designates I030; X3 designates I040; X4 designates I050; X5 designates I060, totaling 6 points.
e) When the present value in C251 changes from 99 to 100 or 101 to 100, the program will jump to I010 and execute the interruption service subroutine. 2. In SA/SX/SC series MPU, M1059 is “I010 ~ I060 high speed counter interruption forbidden” flag. 3. In EH/EH2/SV/EH3/SV2 series MPU, M1289 ~ M1294 are the respectively for I010 ~ I060 “high speed counter interruption forbidden flags”, i.e. when M1294 = On, I060 interruption will be forbidden. DVP-PLC APPLICATION MANUAL 7-6 DCNT C249 K100 DHSCS K100 C249 Y10 SET Y17 I010 EI M1000 DCNT C251 K1000 DHSCS K100 C251 I010 FEND M1000 Y1 IRET END DCNT C251 K1000 DHSCS K100 C251 I010 FEND Interruption pointer I No.
Interruption forbidden flag I010 M1289 I020 M1290 I030 M1291 Interruption pointer I No. Interruption forbidden flag I040 M1292 I050 M1293 I060 M1294