allen bradley instruction help
- Thread starter quebmaint
- Start date
Mickey
Lifetime Supporting Member
Its called "INDIRECT ADDRESSING" see pdf and link
http://www.plctalk.net/qanda/showpost.php?p=566276&postcount=4
http://www.plctalk.net/qanda/showpost.php?p=566276&postcount=4
Ken Roach
Lifetime Supporting Member + Moderator
This is an example of Indirect Addressing where the address pointers are being applied to both the Data Table number and the Data Table element.
The value of N7:1 will be the Data Table number.
The value of N7:2 will be the Data Table element.
For example, if N7:1 = 10 and N7:2 = 16, that instruction will point to Bit 22 of a Long (32-bit integer) data table element, address L10:16/22.
The value of N7:1 will be the Data Table number.
The value of N7:2 will be the Data Table element.
For example, if N7:1 = 10 and N7:2 = 16, that instruction will point to Bit 22 of a Long (32-bit integer) data table element, address L10:16/22.
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