BYTE=8 bits, WORD= 16 bits, DWORD=32 bits, INT= 16 bit integer type (single integer), DINT=32 bit integer type (double integer), WORD and DWORD are unsigned.
Commonly used Word, d Word, Int, Dint, Real, etc. These are data types.
GE PLC i%0000 1 or q%0000 1 this is a bit.
From i%0000 1 to i%0000 16, this is 16 data bits. For example, if you want to move these 16 data bits to another location. To move i%0000 1 to r%000 10, you only need to set the two data formats of I% 000 1 and r%000 10 to word.
For example, if you read an analog quantity and store it in i%000 1 1, you also need to set the corresponding data type.
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