Omron WS02-CXPC1-V9 - V9 Operation Manual page 122

Procedures
96
As shown below, the variables must be changed to specify the first word in an
array and a specific word in the same array after the function block definition
has been generated.
Example: DT_WORD is set as a WORD array variable with 2 elements.
DT_WORD[0] is specified for MOVL(498) and DT_WORD[1] is specified for
MOV(021).
Instructions with Two Operands Specifying Starting and Ending Words
Example: D0 to D9 Specified for BSET(071)
As shown below, the variables must be changed to specify the first word in an
array and a specific word in the same array after the function block definition
has been generated.
Example: DT_WORD is set as a WORD array variable with 10 elements.
DT_WORD[0] is specified for the first operand and DT_WORD[9] is specified
for the second operand of BSET(071).
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Section 3-2