Mas01
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Is K4M101 a constant? Is K7 a constant?
What does this instruction do? Thanks
What does this instruction do? Thanks
Mitsubishi Q series...BMOV command. What is this instruction doing?
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Mas01
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drbitboy
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Mas01
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Brilliant mrbitboy, thanks. This may be just what I need to understand my Alarms problem!
Don't understand your (ii) signature, but I'm sure I will do with the fullness of time and my PLC knowledge increases.
Mas01
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Mas01
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I don't quite understand....what does the "K7" do?
What does K7 do?
If the instruction is to move M101 thru M116 to D234 thru D249 (16 moves), then what does K7 do?
What does K7 do?
If the instruction is to move M101 thru M116 to D234 thru D249 (16 moves), then what does K7 do?
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Can't see the code afterwards but from the comments what they are doing is to find new alarms only by ANDING the status of the inverse of old stored alarms they are checking if any of them are new at that instance in time, not sure why I would assume GOT has it's own alarm system that shows which are new alarms or not acknowledged.
so for example if the old alarms were
000110101001010 Old alarm status
111001010110101 Inverted alarms status
100111000000100 latest alarms
100001000000100 Result i.e. any bit that was not an alarm in old status but is now is a new alarm
so for example if the old alarms were
000110101001010 Old alarm status
111001010110101 Inverted alarms status
100111000000100 latest alarms
100001000000100 Result i.e. any bit that was not an alarm in old status but is now is a new alarm
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Mas01
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Thanks parky, yes I think that's what they're doing...if the result of the AND is non-zero, we've got a new alarm.
I edited my previous post, because I still don't understand what K7 means.
I edited my previous post, because I still don't understand what K7 means.
Mas01
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Thanks, but what purpose does it serve in the instruction?
It means to copy the bits to 7 registers, if for example it was block move D0 to D100 K7 then it would move D0 to D6 (7 registers) to D100 to D106 (7 Registers)
so
D0 > D100
D1 > D101
D2 > D102
D3 > D103
D4 > D104
D5 > D105
D6 > D106
By using K4 M100 D100 K7 just means it moves 7x16 bits from M100 to M112 to registers D100 to D107.
so
D0 > D100
D1 > D101
D2 > D102
D3 > D103
D4 > D104
D5 > D105
D6 > D106
By using K4 M100 D100 K7 just means it moves 7x16 bits from M100 to M112 to registers D100 to D107.
Mas01
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Ah, the penny's dropped..."7 lots of 16 bits".
Thanks!
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