Gamble Posted November 3, 2006 Report Posted November 3, 2006 In a program I have this instruction: [< K0 K3M26] When activated there is a number that will show up underneath it on the rightside much like a counter or timer. As I understand it, this is an OR instruction. Is K0 a constant value or is it a reference to some editable data? If it is a constant value then you are ORing with a 0 which is pointless. If it is editable data how can this be monitored? And K3M26 I don't understand at all. I'm fairly new to Mitsubishi PLC, and I have read through the FX programing manual and the MELSEC software manual.
Gambit Posted November 3, 2006 Report Posted November 3, 2006 (edited) K0 is the constant value of 0 K3M26 means 3*4bits from M26 (M26-M38) The instruction here just compares if any of the bit devices M26 - 38 are on. To put is simply if the value of M26 - M38 is higher than 0 The value you see is M26 M27 M28 ....M38 being monitored as a 12 bit vlaue Edited November 3, 2006 by Gambit
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