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asterof

Help with I/O Address Syntax

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I have been programming AB starting with PLC2's Now I need to learn Unity for a 140CPU547 I am having trouble figuring out the syntax for real world inputs The module is in slot 6 of rack 1 which is the first local rack. It is a digital 24 volt dc input I am thinking it is %I.6.0 altho that does now work. What am I doing incorrect.

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Have you configured the card? You have to configure it for either Bit (%I or 1x) or Input Word (%IW or 3x). Then you have to assign the card an address range. Example: If I set up the card for Bit (%I or 1x) and set the range for 1 to 16 the IO addresses would be: 10001 10009 10002 10010 10003 10011 10004 10012 10005 10013 10006 10014 10007 10015 10008 10016 These can also be represented by 1:1 1:2 1:3 Etc... or they would be %I1 %I9 %I2 %I10 %I3 %I11 %I4 %I12 %I5 %I13 %I6 %I14 %I7 %I15 %I8 %I16

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