PLC5 Indirect address conversion
- Thread starter asterof
- Start date
Hi
You need to create an array of ints and then create a counter to address the int word to bit level. The n7 200 is here word you are adding.i will have logic open later I will do it out unless someone else does it first just on my phone at the moment
Donnchadh
You need to create an array of ints and then create a counter to address the int word to bit level. The n7 200 is here word you are adding.i will have logic open later I will do it out unless someone else does it first just on my phone at the moment
Donnchadh
Indirect alias
QUOTE
counter to address the int word to bit level UNQUOTE
The original PLC5 was this N[N7:200]:[C5:1.ACC]
No bit level
I solved the T14[C5_1_ACC].ACC by making an alias to
C5[1].ACC , however
N[N7_200][C5_1_ACC] is still eluding me
Lets say N7_200 has a value of 16
Lets say C5_1_ACC is at 10
Then N[N7_200][C5_1_ACC] would look like this
N16[10] thats a tough one to figure out
QUOTE
counter to address the int word to bit level UNQUOTE
The original PLC5 was this N[N7:200]:[C5:1.ACC]
No bit level
I solved the T14[C5_1_ACC].ACC by making an alias to
C5[1].ACC , however
N[N7_200][C5_1_ACC] is still eluding me
Lets say N7_200 has a value of 16
Lets say C5_1_ACC is at 10
Then N[N7_200][C5_1_ACC] would look like this
N16[10] thats a tough one to figure out
Phrog30
Member
This is from RSLogix5000 help...
MyArray defined as INT[100] - MyIndex defined as INT
MyArray[(MyIndex AND NOT 15) / 16].[MyIndex AND 15]
This example references a bit within an INT array.
MyArray defined as DINT[100] - MyIndex defined as DINT
MyArray[(MyIndex AND NOT 31) / 32].[MyIndex AND 31]
This example references a bit within a DINT array.
I can't say for certain, but the index tags could be different, try and see and let us know if it works.
James
MyArray defined as INT[100] - MyIndex defined as INT
MyArray[(MyIndex AND NOT 15) / 16].[MyIndex AND 15]
This example references a bit within an INT array.
MyArray defined as DINT[100] - MyIndex defined as DINT
MyArray[(MyIndex AND NOT 31) / 32].[MyIndex AND 31]
This example references a bit within a DINT array.
I can't say for certain, but the index tags could be different, try and see and let us know if it works.
James
Phrog30
Member
I'm sorry, I emulated and index tags really need to be the same, if you don't want to use a multi dimension array, you could do this:
MUL MyIndex1 32 Index ADD Index MyIndex2 Index
OTE "MyArray[(Index AND NOT 31) / 32].[Index AND 31]"
All tags are DINT.
This could be done for INT also, just change 31 to 15 and 32 to 16.
James
MUL MyIndex1 32 Index ADD Index MyIndex2 Index
OTE "MyArray[(Index AND NOT 31) / 32].[Index AND 31]"
All tags are DINT.
This could be done for INT also, just change 31 to 15 and 32 to 16.
James
Yea same issue
I was in on that discussion also
However the last answer will not work in CLX
Phrog30
Member
Sure it will!! What is your basis for saying it will not??
I am sorry but this makes no sence to me
Lets clear this again
N[N7_200][C5_1_ACC]
N7_200 is an alias to the value in N7[200]
C5_1_ACC is an alias to the value in C5[1].ACC
The value ranges of N7_200 is 17, 18, 19, 20, 21, 22, 23
based on the code construction
so N[xxx] will always be N17 or N18 or N19 or N20
or N21 or N22 or N23
C5_1_ACC hs a range based on the code of 1 - 7
so each the posibilites are as follows
N17[1], N17[2], N17[3], N17[4], N17[5], N17[6], N17[7]
N18[1], and so on
so there are 7 * 7 posibilities
N_ARRAY[7,7]
Now creating an array like N_ARRAY[array1, array2] will not work because array2 can not be indexed with array1
and there no way to add them.
Sure it will!! What is your basis for saying it will not??
I was refering to my issue which is a lot more complicated
than that threads issue
My N[xx] is a different file not the same array
Were indexing a different file based on the value of N7_200
I was refering to my issue which is a lot more complicated
than that threads issue
My N[xx] is a different file not the same array
Were indexing a different file based on the value of N7_200
Phrog30
Member
Ok, just because it doesn't make sense doesn't mean it won't work. I was simply giving you options.
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