Rockwell-automation 5730 DriveLogix5730 Controller for PowerFlex 700S Manuel d'utilisateur télécharger pdf (Page 208)

C-2 Application Restrictions

In a Tag of a User-defined Data

Type, an Instruction May Write

Past the End of an Array.

If you write too much data to an array that is within a user-defined data type, some instructions write beyond the

array and into other members of the tag.

Example 1: Instruction Stops at the End of the Array

If the length is greater than the number of elements in

the destination array . . .

. . . then the instruction stops at the end of the array.

Example 2: Instruction Writes Beyond the Array

If the length is greater than the number of elements in

the destination array . . .

. . . then the instruction writes data beyond the end of

the array into other members of the tab. Regardless of

the length specified for the instruction, it stops writing if

it reaches the end of the tag.

The following instructions write beyond the array into other members of the tag:

BSL FBC LFL

BSR FFL LFU

COP FFU SQL

CPS FLL SRT

DDT GSV SSV

This restriction also applies to all previous revisions.

To prevent writing beyond the limits of the destination array, make sure that the length operand of the instruction

is less than or equal to the number of elements in the array.

Restriction: Description:

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Rockwell-automation 5730 DriveLogix5730 Controller for PowerFlex 700S Manuel d'utilisateur Page 208