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51 60

  1. 1. PLC системийг маш олон компаниуд гаргадаг:  Siemens,  Allen Bradley,  Omron,  Schneider, гэх мэт 51
  2. 2. 52
  3. 3. S7-200 configuration 53
  4. 4. S7 200 family 54
  5. 5. S7-200 configuration inputs 55
  6. 6. S7-200 configuration outputs 56
  7. 7. S7-200 configuration I/O numbering 57
  8. 8. Analogue I/O = Typical analogue signals from 0-10 VDC or 4-20 mA = They are used to represent changing values such as temperature, weight and level 58 speed,
  9. 9. Instructions Standard instructions: They are used in most programs. Examples: timer, counter, math, logical, incr., decr. and move Special instructions: They are used to manipulate data Shift, table, conversion, real time instruction. High speed instructions: They allow for events and interrupts to occur independently of the PLC scan time. Examples: High speed counters and interrupts 59
  10. 10. Input Instructions Bit Logic instruction Normally Open contact Normally Closed contact Normally Open Immediate contact Normally Closed Immediate contact Positive Transition contact Negative Transition contact Not contact 60

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