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A simple Question here

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may someone tell me what is the mean of this ladder? new user of mitsubishi here. M8000 -ll-[<> D0 D8] -------- [MOVP D0 D8] thank.

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M8000 is the always on bit, so this happens every scan of the PLC. If D0 and D8 (two 16-bit data registers) are not equal, the value in D0 gets moved to D8.

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thank for the reply. Now i understand what is the code here and why it use. thank crossbow..

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And also dont forget that the MOV instruction is suffixed with a P (P for Pulse or one shot) This means that the value will only be MOVed once when the two are unequal and they will have to go equal again to reset the one shot P and then a new value will be moved once they are unequal again (think I got that the right way around - check anyone))

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goody, that is correct. Doesn't need the m8000 though....

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IT SEEMS THE AIM IS TO MAKE THE TWO MUMBERS EQUAL.

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ok... thank for all the forumer reply. i think i fully understand what and why the instruction use for. thank alot.

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