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71 80

  1. 1. Off-Delay timer The Off-Delay Timer is used to delay turning an output OFF for a fixed period of time after the input turns OFF. When (IN) turns ON, the timer bit turns ON immediately, and the current value is set to 0. When (IN) turns OFF, the timer counts till PT and the timer bit turns OFF and the current value stops counting. If the input is OFF for a time shorter than PT, the timer bit remains ON. 71
  2. 2. Timers numbers & resolutions 72
  3. 3. Timer examples On-Delay Retentive On-Delay Off-Delay 73
  4. 4. Hard-wired on-delay timer 74
  5. 5. le 75
  6. 6. TONR example 76
  7. 7. Timer example 77
  8. 8. Memory types  You can access data in many CPU memory areas - process image input register - process image output register - variable memory area - Bit memory area - sequence control relay memory area - special memory bits - local memory area -Timer memory area - counter memory area - Analog inputs 78 (I) (Q) (V) (M) (S) (SM) (L) (T) (C) (AI)
  9. 9. Memory addressing Accessing a Bit of Data in the CPU Memory (Byte.bit Addressing) 79
  10. 10. Memory addressing You can access data in many CPU memory areas (V, I, Q, M, S, L, and SM) as: bytes, words, or double words by using the byte-address format. 80

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